PORTS USED: string

Showing posts with label string. Show all posts

Friday, March 23, 2012

Potential Concurrency Issue?

Hi,
I want to know if the below mentioned pseudo code can pose a
concurrency problem.
declare @.string
CREATE TABLE #temp
(
name VARCHAR(100),
value VARCHAR(100)
)
--INSERT some value
--Call another stored procedure that takes the table name and a string
EXEC usp_replace '#temp',@.string OUTPUT
// the usp_replace sp replaces occurence of 'name' with 'values' as per
entries in #temp
Now the question is that since im passing the table name and using it
to query in the usp_replace could this mess up the values if multiple
concurrent users execute it?
Would really appreciate any thoughts on this. Thanks.Hi
If you have created the temporary table at the outer level it will be
available to the inner level procedure, therefore it should not be necessary
to pass the table name. For more on temporary tables read Books Online or at
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
If many processes are creating/dropping temporary tables you can get
contention on tempdb, this can be limited to some degree by making sure that
tempdb is on it's own discs. Without knowing more about what you are trying
to achieve it is not possible to suggest an alternative approach.
John
"Rishi" wrote:
> Hi,
> I want to know if the below mentioned pseudo code can pose a
> concurrency problem.
> declare @.string
> CREATE TABLE #temp
> (
> name VARCHAR(100),
> value VARCHAR(100)
> )
> --INSERT some value
> --Call another stored procedure that takes the table name and a string
> EXEC usp_replace '#temp',@.string OUTPUT
> // the usp_replace sp replaces occurence of 'name' with 'values' as per
> entries in #temp
>
> Now the question is that since im passing the table name and using it
> to query in the usp_replace could this mess up the values if multiple
> concurrent users execute it?
> Would really appreciate any thoughts on this. Thanks.
>|||Thanks John!
to be more precise on what im tryin to achieve is :
To create a generic stored procedure that replace the occurence of
certain "place holders" in a string.
The placeholders' values are stored in a table as a name value pair.
This table can be either generates on the fly as a temp table or be a
permanent table.
e.g. the string is '<name> who is <age> years old lives in <city>'
the temp table will be
name | value
--
<name> | jack
<age> | 23
<city> | NY
appreciate your help, thanks!
John Bell wrote:
> Hi
> If you have created the temporary table at the outer level it will be
> available to the inner level procedure, therefore it should not be necessary
> to pass the table name. For more on temporary tables read Books Online or at
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> If many processes are creating/dropping temporary tables you can get
> contention on tempdb, this can be limited to some degree by making sure that
> tempdb is on it's own discs. Without knowing more about what you are trying
> to achieve it is not possible to suggest an alternative approach.
> John
> "Rishi" wrote:
> > Hi,
> > I want to know if the below mentioned pseudo code can pose a
> > concurrency problem.
> >
> > declare @.string
> >
> > CREATE TABLE #temp
> > (
> > name VARCHAR(100),
> > value VARCHAR(100)
> > )
> > --INSERT some value
> >
> > --Call another stored procedure that takes the table name and a string
> >
> > EXEC usp_replace '#temp',@.string OUTPUT
> >
> > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > entries in #temp
> >
> >
> >
> > Now the question is that since im passing the table name and using it
> > to query in the usp_replace could this mess up the values if multiple
> > concurrent users execute it?
> >
> > Would really appreciate any thoughts on this. Thanks.
> >
> >|||Hi
If these are just values then you should be able to join to this table and
not need to resort to dynamic SQL. If you wish to change the SQL Statement
e.g. column names then
see
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_ea-ez_2h7w.asp
but still pass variables for the values. You may want to look at
http://www.sommarskog.se/dynamic_sql.html and
http://www.sommarskog.se/dyn-search.html
John
"Rishi" wrote:
> Thanks John!
> to be more precise on what im tryin to achieve is :
> To create a generic stored procedure that replace the occurence of
> certain "place holders" in a string.
> The placeholders' values are stored in a table as a name value pair.
> This table can be either generates on the fly as a temp table or be a
> permanent table.
> e.g. the string is '<name> who is <age> years old lives in <city>'
> the temp table will be
> name | value
> --
> <name> | jack
> <age> | 23
> <city> | NY
> appreciate your help, thanks!
>
> John Bell wrote:
> > Hi
> >
> > If you have created the temporary table at the outer level it will be
> > available to the inner level procedure, therefore it should not be necessary
> > to pass the table name. For more on temporary tables read Books Online or at
> > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> >
> > If many processes are creating/dropping temporary tables you can get
> > contention on tempdb, this can be limited to some degree by making sure that
> > tempdb is on it's own discs. Without knowing more about what you are trying
> > to achieve it is not possible to suggest an alternative approach.
> >
> > John
> >
> > "Rishi" wrote:
> >
> > > Hi,
> > > I want to know if the below mentioned pseudo code can pose a
> > > concurrency problem.
> > >
> > > declare @.string
> > >
> > > CREATE TABLE #temp
> > > (
> > > name VARCHAR(100),
> > > value VARCHAR(100)
> > > )
> > > --INSERT some value
> > >
> > > --Call another stored procedure that takes the table name and a string
> > >
> > > EXEC usp_replace '#temp',@.string OUTPUT
> > >
> > > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > > entries in #temp
> > >
> > >
> > >
> > > Now the question is that since im passing the table name and using it
> > > to query in the usp_replace could this mess up the values if multiple
> > > concurrent users execute it?
> > >
> > > Would really appreciate any thoughts on this. Thanks.
> > >
> > >
>|||Hi,
the dynamic sql thing looks great, but i dont know how it will
rescue me as a n aternative in this case. could you please throw some
more light on this.
probably my last post wasnt very clear, so the deal is:
i have a table which has name value pairs.
i have a string which has names as place holders for the values
in the string i need to replace those names with the values as found in
the table.
i want a general reusable stored proc to acheive this.
the way i am doing it as desribed in the first post works, but i want
to know if that will pose any concurrency problems.
since i want the sp to general and reusable i dont want to hard code
and use the table name in the usp_replace sp.
Please let me know your thoughts.
Thanks,
Rishi.
John Bell wrote:
> Hi
> If these are just values then you should be able to join to this table and
> not need to resort to dynamic SQL. If you wish to change the SQL Statement
> e.g. column names then
> see
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_ea-ez_2h7w.asp
> but still pass variables for the values. You may want to look at
> http://www.sommarskog.se/dynamic_sql.html and
> http://www.sommarskog.se/dyn-search.html
> John
> "Rishi" wrote:
> > Thanks John!
> > to be more precise on what im tryin to achieve is :
> >
> > To create a generic stored procedure that replace the occurence of
> > certain "place holders" in a string.
> > The placeholders' values are stored in a table as a name value pair.
> > This table can be either generates on the fly as a temp table or be a
> > permanent table.
> >
> > e.g. the string is '<name> who is <age> years old lives in <city>'
> >
> > the temp table will be
> > name | value
> > --
> > <name> | jack
> > <age> | 23
> > <city> | NY
> >
> > appreciate your help, thanks!
> >
> >
> >
> > John Bell wrote:
> > > Hi
> > >
> > > If you have created the temporary table at the outer level it will be
> > > available to the inner level procedure, therefore it should not be necessary
> > > to pass the table name. For more on temporary tables read Books Online or at
> > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> > >
> > > If many processes are creating/dropping temporary tables you can get
> > > contention on tempdb, this can be limited to some degree by making sure that
> > > tempdb is on it's own discs. Without knowing more about what you are trying
> > > to achieve it is not possible to suggest an alternative approach.
> > >
> > > John
> > >
> > > "Rishi" wrote:
> > >
> > > > Hi,
> > > > I want to know if the below mentioned pseudo code can pose a
> > > > concurrency problem.
> > > >
> > > > declare @.string
> > > >
> > > > CREATE TABLE #temp
> > > > (
> > > > name VARCHAR(100),
> > > > value VARCHAR(100)
> > > > )
> > > > --INSERT some value
> > > >
> > > > --Call another stored procedure that takes the table name and a string
> > > >
> > > > EXEC usp_replace '#temp',@.string OUTPUT
> > > >
> > > > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > > > entries in #temp
> > > >
> > > >
> > > >
> > > > Now the question is that since im passing the table name and using it
> > > > to query in the usp_replace could this mess up the values if multiple
> > > > concurrent users execute it?
> > > >
> > > > Would really appreciate any thoughts on this. Thanks.
> > > >
> > > >
> >
> >|||Hi
Can you give an example SQL Statement and the values in the table that will
be used and the code to usp_replace?
John
"Rishi" wrote:
> Hi,
> the dynamic sql thing looks great, but i dont know how it will
> rescue me as a n aternative in this case. could you please throw some
> more light on this.
> probably my last post wasnt very clear, so the deal is:
> i have a table which has name value pairs.
> i have a string which has names as place holders for the values
> in the string i need to replace those names with the values as found in
> the table.
> i want a general reusable stored proc to acheive this.
> the way i am doing it as desribed in the first post works, but i want
> to know if that will pose any concurrency problems.
> since i want the sp to general and reusable i dont want to hard code
> and use the table name in the usp_replace sp.
> Please let me know your thoughts.
> Thanks,
> Rishi.
>
> John Bell wrote:
> > Hi
> >
> > If these are just values then you should be able to join to this table and
> > not need to resort to dynamic SQL. If you wish to change the SQL Statement
> > e.g. column names then
> > see
> > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_ea-ez_2h7w.asp
> > but still pass variables for the values. You may want to look at
> > http://www.sommarskog.se/dynamic_sql.html and
> > http://www.sommarskog.se/dyn-search.html
> >
> > John
> >
> > "Rishi" wrote:
> >
> > > Thanks John!
> > > to be more precise on what im tryin to achieve is :
> > >
> > > To create a generic stored procedure that replace the occurence of
> > > certain "place holders" in a string.
> > > The placeholders' values are stored in a table as a name value pair.
> > > This table can be either generates on the fly as a temp table or be a
> > > permanent table.
> > >
> > > e.g. the string is '<name> who is <age> years old lives in <city>'
> > >
> > > the temp table will be
> > > name | value
> > > --
> > > <name> | jack
> > > <age> | 23
> > > <city> | NY
> > >
> > > appreciate your help, thanks!
> > >
> > >
> > >
> > > John Bell wrote:
> > > > Hi
> > > >
> > > > If you have created the temporary table at the outer level it will be
> > > > available to the inner level procedure, therefore it should not be necessary
> > > > to pass the table name. For more on temporary tables read Books Online or at
> > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> > > >
> > > > If many processes are creating/dropping temporary tables you can get
> > > > contention on tempdb, this can be limited to some degree by making sure that
> > > > tempdb is on it's own discs. Without knowing more about what you are trying
> > > > to achieve it is not possible to suggest an alternative approach.
> > > >
> > > > John
> > > >
> > > > "Rishi" wrote:
> > > >
> > > > > Hi,
> > > > > I want to know if the below mentioned pseudo code can pose a
> > > > > concurrency problem.
> > > > >
> > > > > declare @.string
> > > > >
> > > > > CREATE TABLE #temp
> > > > > (
> > > > > name VARCHAR(100),
> > > > > value VARCHAR(100)
> > > > > )
> > > > > --INSERT some value
> > > > >
> > > > > --Call another stored procedure that takes the table name and a string
> > > > >
> > > > > EXEC usp_replace '#temp',@.string OUTPUT
> > > > >
> > > > > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > > > > entries in #temp
> > > > >
> > > > >
> > > > >
> > > > > Now the question is that since im passing the table name and using it
> > > > > to query in the usp_replace could this mess up the values if multiple
> > > > > concurrent users execute it?
> > > > >
> > > > > Would really appreciate any thoughts on this. Thanks.
> > > > >
> > > > >
> > >
> > >
>|||Sure John! here it is:
--- in main stored proc
----
--Some code goes here
SET @.string = ' <attribute1> some text here <attribute2> some text here
<property1>'
CREATE TABLE #prop
(
name VARCHAR(100),
value VARCHAR(100)
)
-- Get Standard Attributes
INSERT INTO #prop
--some dynamic name value pairs returned from
some other calculation / query
-- Get user defined properties
INSERT INTO #prop
--some dynamic name value pairs returned from
some other calculation / query
--
--
--
EXEC usp_replace '#prop',@.string output
------
---
usp_replace----
ALTER PROCEDURE [dbo].[usp_replace]
@.tablename VARCHAR(100) ,
@.string VARCHAR(1000) OUTPUT
AS
BEGIN
--IF(nullif(@.string,'') is null) RETURN
DECLARE @.tableqry VARCHAR(100)
DECLARE @.temp TABLE(name VARCHAR(100),value VARCHAR(1000))
SET @.tableqry = 'SELECT * FROM '+@.tablename
INSERT INTO @.temp
EXEC (@.tableqry)
DECLARE c CURSOR FOR
SELECT * FROM @.temp
DECLARE @.name VARCHAR(100),@.value VARCHAR(1000)
OPEN c
FETCH next FROM c INTO @.name,@.value
WHILE @.@.fetch_status =0 BEGIN
SET @.string = replace(@.string,@.name,coalesce(@.value,'NULL'))
FETCH next FROM c INTO @.name,@.value
END
CLOSE c
DEALLOCATE c
END
---
usp_replace----
the table #prop looks like this after values are inserted in it in the
main sp.
name | value
---
<attribute1> | attributvalue
<attribute2 > | attribute2value
----
finallly the string looks like this after returned from sp_replace
' attributvalue some text here attribute2value some text here
<property1>'
----
John Bell wrote:
> Hi
> Can you give an example SQL Statement and the values in the table that will
> be used and the code to usp_replace?
> John
> "Rishi" wrote:
> > Hi,
> > the dynamic sql thing looks great, but i dont know how it will
> > rescue me as a n aternative in this case. could you please throw some
> > more light on this.
> > probably my last post wasnt very clear, so the deal is:
> >
> > i have a table which has name value pairs.
> > i have a string which has names as place holders for the values
> > in the string i need to replace those names with the values as found in
> > the table.
> > i want a general reusable stored proc to acheive this.
> > the way i am doing it as desribed in the first post works, but i want
> > to know if that will pose any concurrency problems.
> > since i want the sp to general and reusable i dont want to hard code
> > and use the table name in the usp_replace sp.
> >
> > Please let me know your thoughts.
> > Thanks,
> > Rishi.
> >
> >
> >
> > John Bell wrote:
> > > Hi
> > >
> > > If these are just values then you should be able to join to this table and
> > > not need to resort to dynamic SQL. If you wish to change the SQL Statement
> > > e.g. column names then
> > > see
> > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_ea-ez_2h7w.asp
> > > but still pass variables for the values. You may want to look at
> > > http://www.sommarskog.se/dynamic_sql.html and
> > > http://www.sommarskog.se/dyn-search.html
> > >
> > > John
> > >
> > > "Rishi" wrote:
> > >
> > > > Thanks John!
> > > > to be more precise on what im tryin to achieve is :
> > > >
> > > > To create a generic stored procedure that replace the occurence of
> > > > certain "place holders" in a string.
> > > > The placeholders' values are stored in a table as a name value pair.
> > > > This table can be either generates on the fly as a temp table or be a
> > > > permanent table.
> > > >
> > > > e.g. the string is '<name> who is <age> years old lives in <city>'
> > > >
> > > > the temp table will be
> > > > name | value
> > > > --
> > > > <name> | jack
> > > > <age> | 23
> > > > <city> | NY
> > > >
> > > > appreciate your help, thanks!
> > > >
> > > >
> > > >
> > > > John Bell wrote:
> > > > > Hi
> > > > >
> > > > > If you have created the temporary table at the outer level it will be
> > > > > available to the inner level procedure, therefore it should not be necessary
> > > > > to pass the table name. For more on temporary tables read Books Online or at
> > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> > > > >
> > > > > If many processes are creating/dropping temporary tables you can get
> > > > > contention on tempdb, this can be limited to some degree by making sure that
> > > > > tempdb is on it's own discs. Without knowing more about what you are trying
> > > > > to achieve it is not possible to suggest an alternative approach.
> > > > >
> > > > > John
> > > > >
> > > > > "Rishi" wrote:
> > > > >
> > > > > > Hi,
> > > > > > I want to know if the below mentioned pseudo code can pose a
> > > > > > concurrency problem.
> > > > > >
> > > > > > declare @.string
> > > > > >
> > > > > > CREATE TABLE #temp
> > > > > > (
> > > > > > name VARCHAR(100),
> > > > > > value VARCHAR(100)
> > > > > > )
> > > > > > --INSERT some value
> > > > > >
> > > > > > --Call another stored procedure that takes the table name and a string
> > > > > >
> > > > > > EXEC usp_replace '#temp',@.string OUTPUT
> > > > > >
> > > > > > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > > > > > entries in #temp
> > > > > >
> > > > > >
> > > > > >
> > > > > > Now the question is that since im passing the table name and using it
> > > > > > to query in the usp_replace could this mess up the values if multiple
> > > > > > concurrent users execute it?
> > > > > >
> > > > > > Would really appreciate any thoughts on this. Thanks.
> > > > > >
> > > > > >
> > > >
> > > >
> >
> >|||Hi
As your strings with the placeholders are not SQL Statements then don't
think I can suggest a different alternative.
I am not sure why you need to dynamic SQL for returning values (or to pass
the t able name) from your temporary table, unless the substitutions will be
embeded it should not be necessary! You may want to try ordering the
processing by the length of the value to try and avoid replacing already
substituted values. I assume this is SQL 2005 to use INSERT EXEC for the
table variable? For you string size you will may have truncation if you have
more than 9 substitutions.
If this is just going to be sent to the client you may just want to do the
replacement on the client.
John
"Rishi" wrote:
> Sure John! here it is:
>
> --- in main stored proc
> ----
> --Some code goes here
> SET @.string = ' <attribute1> some text here <attribute2> some text here
> <property1>'
> CREATE TABLE #prop
> (
> name VARCHAR(100),
> value VARCHAR(100)
> )
> -- Get Standard Attributes
> INSERT INTO #prop
> --some dynamic name value pairs returned from
> some other calculation / query
> -- Get user defined properties
> INSERT INTO #prop
> --some dynamic name value pairs returned from
> some other calculation / query
> --
> --
> --
> EXEC usp_replace '#prop',@.string output
>
>
> ------
> ---
> usp_replace----
> ALTER PROCEDURE [dbo].[usp_replace]
> @.tablename VARCHAR(100) ,
> @.string VARCHAR(1000) OUTPUT
> AS
> BEGIN
> --IF(nullif(@.string,'') is null) RETURN
> DECLARE @.tableqry VARCHAR(100)
> DECLARE @.temp TABLE(name VARCHAR(100),value VARCHAR(1000))
> SET @.tableqry = 'SELECT * FROM '+@.tablename
> INSERT INTO @.temp
> EXEC (@.tableqry)
> DECLARE c CURSOR FOR
> SELECT * FROM @.temp
> DECLARE @.name VARCHAR(100),@.value VARCHAR(1000)
> OPEN c
> FETCH next FROM c INTO @.name,@.value
> WHILE @.@.fetch_status =0 BEGIN
> SET @.string = replace(@.string,@.name,coalesce(@.value,'NULL'))
> FETCH next FROM c INTO @.name,@.value
> END
> CLOSE c
> DEALLOCATE c
>
> END
> ---
> usp_replace----
>
> the table #prop looks like this after values are inserted in it in the
> main sp.
> name | value
> ---
> <attribute1> | attributvalue
> <attribute2 > | attribute2value
> ----
>
> finallly the string looks like this after returned from sp_replace
> ' attributvalue some text here attribute2value some text here
> <property1>'
> ----
>
>
> John Bell wrote:
> > Hi
> >
> > Can you give an example SQL Statement and the values in the table that will
> > be used and the code to usp_replace?
> >
> > John
> >
> > "Rishi" wrote:
> >
> > > Hi,
> > > the dynamic sql thing looks great, but i dont know how it will
> > > rescue me as a n aternative in this case. could you please throw some
> > > more light on this.
> > > probably my last post wasnt very clear, so the deal is:
> > >
> > > i have a table which has name value pairs.
> > > i have a string which has names as place holders for the values
> > > in the string i need to replace those names with the values as found in
> > > the table.
> > > i want a general reusable stored proc to acheive this.
> > > the way i am doing it as desribed in the first post works, but i want
> > > to know if that will pose any concurrency problems.
> > > since i want the sp to general and reusable i dont want to hard code
> > > and use the table name in the usp_replace sp.
> > >
> > > Please let me know your thoughts.
> > > Thanks,
> > > Rishi.
> > >
> > >
> > >
> > > John Bell wrote:
> > > > Hi
> > > >
> > > > If these are just values then you should be able to join to this table and
> > > > not need to resort to dynamic SQL. If you wish to change the SQL Statement
> > > > e.g. column names then
> > > > see
> > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_ea-ez_2h7w.asp
> > > > but still pass variables for the values. You may want to look at
> > > > http://www.sommarskog.se/dynamic_sql.html and
> > > > http://www.sommarskog.se/dyn-search.html
> > > >
> > > > John
> > > >
> > > > "Rishi" wrote:
> > > >
> > > > > Thanks John!
> > > > > to be more precise on what im tryin to achieve is :
> > > > >
> > > > > To create a generic stored procedure that replace the occurence of
> > > > > certain "place holders" in a string.
> > > > > The placeholders' values are stored in a table as a name value pair.
> > > > > This table can be either generates on the fly as a temp table or be a
> > > > > permanent table.
> > > > >
> > > > > e.g. the string is '<name> who is <age> years old lives in <city>'
> > > > >
> > > > > the temp table will be
> > > > > name | value
> > > > > --
> > > > > <name> | jack
> > > > > <age> | 23
> > > > > <city> | NY
> > > > >
> > > > > appreciate your help, thanks!
> > > > >
> > > > >
> > > > >
> > > > > John Bell wrote:
> > > > > > Hi
> > > > > >
> > > > > > If you have created the temporary table at the outer level it will be
> > > > > > available to the inner level procedure, therefore it should not be necessary
> > > > > > to pass the table name. For more on temporary tables read Books Online or at
> > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> > > > > >
> > > > > > If many processes are creating/dropping temporary tables you can get
> > > > > > contention on tempdb, this can be limited to some degree by making sure that
> > > > > > tempdb is on it's own discs. Without knowing more about what you are trying
> > > > > > to achieve it is not possible to suggest an alternative approach.
> > > > > >
> > > > > > John
> > > > > >
> > > > > > "Rishi" wrote:
> > > > > >
> > > > > > > Hi,
> > > > > > > I want to know if the below mentioned pseudo code can pose a
> > > > > > > concurrency problem.
> > > > > > >
> > > > > > > declare @.string
> > > > > > >
> > > > > > > CREATE TABLE #temp
> > > > > > > (
> > > > > > > name VARCHAR(100),
> > > > > > > value VARCHAR(100)
> > > > > > > )
> > > > > > > --INSERT some value
> > > > > > >
> > > > > > > --Call another stored procedure that takes the table name and a string
> > > > > > >
> > > > > > > EXEC usp_replace '#temp',@.string OUTPUT
> > > > > > >
> > > > > > > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > > > > > > entries in #temp
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Now the question is that since im passing the table name and using it
> > > > > > > to query in the usp_replace could this mess up the values if multiple
> > > > > > > concurrent users execute it?
> > > > > > >
> > > > > > > Would really appreciate any thoughts on this. Thanks.
> > > > > > >
> > > > > > >
> > > > >
> > > > >
> > >
> > >
>|||Thanks a lot John!
Yes this is sql 2005 and your other assumptions are right too. the
reason for a saperate sp is just to be able to reuse it in other sps
where ever i might need substitution, whcih btw i would bcoz of the
crazy app we are dev .
However i didnt quite understand why would the string be truncated for
more than 9 substitutions?
And back to the very first question, could this - sending the table
name - cause a concurrency issue?
Rishi.
John Bell wrote:
> Hi
> As your strings with the placeholders are not SQL Statements then don't
> think I can suggest a different alternative.
> I am not sure why you need to dynamic SQL for returning values (or to pass
> the t able name) from your temporary table, unless the substitutions will be
> embeded it should not be necessary! You may want to try ordering the
> processing by the length of the value to try and avoid replacing already
> substituted values. I assume this is SQL 2005 to use INSERT EXEC for the
> table variable? For you string size you will may have truncation if you have
> more than 9 substitutions.
> If this is just going to be sent to the client you may just want to do the
> replacement on the client.
> John
> "Rishi" wrote:
> > Sure John! here it is:
> >
> >
> > --- in main stored proc
> > ----
> >
> > --Some code goes here
> >
> > SET @.string = ' <attribute1> some text here <attribute2> some text here
> > <property1>'
> >
> > CREATE TABLE #prop
> > (
> > name VARCHAR(100),
> > value VARCHAR(100)
> > )
> >
> > -- Get Standard Attributes
> > INSERT INTO #prop
> > --some dynamic name value pairs returned from
> > some other calculation / query
> >
> > -- Get user defined properties
> > INSERT INTO #prop
> > --some dynamic name value pairs returned from
> > some other calculation / query
> > --
> > --
> > --
> >
> > EXEC usp_replace '#prop',@.string output
> >
> >
> >
> >
> > ------
> >
> > ---
> > usp_replace----
> >
> > ALTER PROCEDURE [dbo].[usp_replace]
> >
> > @.tablename VARCHAR(100) ,
> > @.string VARCHAR(1000) OUTPUT
> > AS
> > BEGIN
> > --IF(nullif(@.string,'') is null) RETURN
> >
> > DECLARE @.tableqry VARCHAR(100)
> > DECLARE @.temp TABLE(name VARCHAR(100),value VARCHAR(1000))
> >
> > SET @.tableqry = 'SELECT * FROM '+@.tablename
> >
> > INSERT INTO @.temp
> > EXEC (@.tableqry)
> >
> > DECLARE c CURSOR FOR
> > SELECT * FROM @.temp
> >
> > DECLARE @.name VARCHAR(100),@.value VARCHAR(1000)
> > OPEN c
> > FETCH next FROM c INTO @.name,@.value
> > WHILE @.@.fetch_status =0 BEGIN
> > SET @.string = replace(@.string,@.name,coalesce(@.value,'NULL'))
> >
> > FETCH next FROM c INTO @.name,@.value
> >
> > END
> > CLOSE c
> > DEALLOCATE c
> >
> >
> > END
> >
> > ---
> > usp_replace----
> >
> >
> > the table #prop looks like this after values are inserted in it in the
> > main sp.
> >
> > name | value
> > ---
> > <attribute1> | attributvalue
> > <attribute2 > | attribute2value
> > ----
> >
> >
> > finallly the string looks like this after returned from sp_replace
> >
> > ' attributvalue some text here attribute2value some text here
> > <property1>'
> > ----
> >
> >
> >
> >
> > John Bell wrote:
> > > Hi
> > >
> > > Can you give an example SQL Statement and the values in the table that will
> > > be used and the code to usp_replace?
> > >
> > > John
> > >
> > > "Rishi" wrote:
> > >
> > > > Hi,
> > > > the dynamic sql thing looks great, but i dont know how it will
> > > > rescue me as a n aternative in this case. could you please throw some
> > > > more light on this.
> > > > probably my last post wasnt very clear, so the deal is:
> > > >
> > > > i have a table which has name value pairs.
> > > > i have a string which has names as place holders for the values
> > > > in the string i need to replace those names with the values as found in
> > > > the table.
> > > > i want a general reusable stored proc to acheive this.
> > > > the way i am doing it as desribed in the first post works, but i want
> > > > to know if that will pose any concurrency problems.
> > > > since i want the sp to general and reusable i dont want to hard code
> > > > and use the table name in the usp_replace sp.
> > > >
> > > > Please let me know your thoughts.
> > > > Thanks,
> > > > Rishi.
> > > >
> > > >
> > > >
> > > > John Bell wrote:
> > > > > Hi
> > > > >
> > > > > If these are just values then you should be able to join to this table and
> > > > > not need to resort to dynamic SQL. If you wish to change the SQL Statement
> > > > > e.g. column names then
> > > > > see
> > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_ea-ez_2h7w.asp
> > > > > but still pass variables for the values. You may want to look at
> > > > > http://www.sommarskog.se/dynamic_sql.html and
> > > > > http://www.sommarskog.se/dyn-search.html
> > > > >
> > > > > John
> > > > >
> > > > > "Rishi" wrote:
> > > > >
> > > > > > Thanks John!
> > > > > > to be more precise on what im tryin to achieve is :
> > > > > >
> > > > > > To create a generic stored procedure that replace the occurence of
> > > > > > certain "place holders" in a string.
> > > > > > The placeholders' values are stored in a table as a name value pair.
> > > > > > This table can be either generates on the fly as a temp table or be a
> > > > > > permanent table.
> > > > > >
> > > > > > e.g. the string is '<name> who is <age> years old lives in <city>'
> > > > > >
> > > > > > the temp table will be
> > > > > > name | value
> > > > > > --
> > > > > > <name> | jack
> > > > > > <age> | 23
> > > > > > <city> | NY
> > > > > >
> > > > > > appreciate your help, thanks!
> > > > > >
> > > > > >
> > > > > >
> > > > > > John Bell wrote:
> > > > > > > Hi
> > > > > > >
> > > > > > > If you have created the temporary table at the outer level it will be
> > > > > > > available to the inner level procedure, therefore it should not be necessary
> > > > > > > to pass the table name. For more on temporary tables read Books Online or at
> > > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> > > > > > >
> > > > > > > If many processes are creating/dropping temporary tables you can get
> > > > > > > contention on tempdb, this can be limited to some degree by making sure that
> > > > > > > tempdb is on it's own discs. Without knowing more about what you are trying
> > > > > > > to achieve it is not possible to suggest an alternative approach.
> > > > > > >
> > > > > > > John
> > > > > > >
> > > > > > > "Rishi" wrote:
> > > > > > >
> > > > > > > > Hi,
> > > > > > > > I want to know if the below mentioned pseudo code can pose a
> > > > > > > > concurrency problem.
> > > > > > > >
> > > > > > > > declare @.string
> > > > > > > >
> > > > > > > > CREATE TABLE #temp
> > > > > > > > (
> > > > > > > > name VARCHAR(100),
> > > > > > > > value VARCHAR(100)
> > > > > > > > )
> > > > > > > > --INSERT some value
> > > > > > > >
> > > > > > > > --Call another stored procedure that takes the table name and a string
> > > > > > > >
> > > > > > > > EXEC usp_replace '#temp',@.string OUTPUT
> > > > > > > >
> > > > > > > > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > > > > > > > entries in #temp
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > Now the question is that since im passing the table name and using it
> > > > > > > > to query in the usp_replace could this mess up the values if multiple
> > > > > > > > concurrent users execute it?
> > > > > > > >
> > > > > > > > Would really appreciate any thoughts on this. Thanks.
> > > > > > > >
> > > > > > > >
> > > > > >
> > > > > >
> > > >
> > > >
> >
> >|||Hi Rishi
As the value of the substitute string can be 100 characters and your string
is only 1000 characters you will potentially start loosing information if you
do more than 9 substitutions (i.e > 900 characters). Look at using
varchar(MAX) for your string and possibly reducing the value size.
Will there always be a fixed number of substitutions?
John
"Rishi" wrote:
> Thanks a lot John!
> Yes this is sql 2005 and your other assumptions are right too. the
> reason for a saperate sp is just to be able to reuse it in other sps
> where ever i might need substitution, whcih btw i would bcoz of the
> crazy app we are dev .
> However i didnt quite understand why would the string be truncated for
> more than 9 substitutions?
> And back to the very first question, could this - sending the table
> name - cause a concurrency issue?
> Rishi.
>
> John Bell wrote:
> > Hi
> >
> > As your strings with the placeholders are not SQL Statements then don't
> > think I can suggest a different alternative.
> >
> > I am not sure why you need to dynamic SQL for returning values (or to pass
> > the t able name) from your temporary table, unless the substitutions will be
> > embeded it should not be necessary! You may want to try ordering the
> > processing by the length of the value to try and avoid replacing already
> > substituted values. I assume this is SQL 2005 to use INSERT EXEC for the
> > table variable? For you string size you will may have truncation if you have
> > more than 9 substitutions.
> >
> > If this is just going to be sent to the client you may just want to do the
> > replacement on the client.
> >
> > John
> >
> > "Rishi" wrote:
> >
> > > Sure John! here it is:
> > >
> > >
> > > --- in main stored proc
> > > ----
> > >
> > > --Some code goes here
> > >
> > > SET @.string = ' <attribute1> some text here <attribute2> some text here
> > > <property1>'
> > >
> > > CREATE TABLE #prop
> > > (
> > > name VARCHAR(100),
> > > value VARCHAR(100)
> > > )
> > >
> > > -- Get Standard Attributes
> > > INSERT INTO #prop
> > > --some dynamic name value pairs returned from
> > > some other calculation / query
> > >
> > > -- Get user defined properties
> > > INSERT INTO #prop
> > > --some dynamic name value pairs returned from
> > > some other calculation / query
> > > --
> > > --
> > > --
> > >
> > > EXEC usp_replace '#prop',@.string output
> > >
> > >
> > >
> > >
> > > ------
> > >
> > > ---
> > > usp_replace----
> > >
> > > ALTER PROCEDURE [dbo].[usp_replace]
> > >
> > > @.tablename VARCHAR(100) ,
> > > @.string VARCHAR(1000) OUTPUT
> > > AS
> > > BEGIN
> > > --IF(nullif(@.string,'') is null) RETURN
> > >
> > > DECLARE @.tableqry VARCHAR(100)
> > > DECLARE @.temp TABLE(name VARCHAR(100),value VARCHAR(1000))
> > >
> > > SET @.tableqry = 'SELECT * FROM '+@.tablename
> > >
> > > INSERT INTO @.temp
> > > EXEC (@.tableqry)
> > >
> > > DECLARE c CURSOR FOR
> > > SELECT * FROM @.temp
> > >
> > > DECLARE @.name VARCHAR(100),@.value VARCHAR(1000)
> > > OPEN c
> > > FETCH next FROM c INTO @.name,@.value
> > > WHILE @.@.fetch_status =0 BEGIN
> > > SET @.string = replace(@.string,@.name,coalesce(@.value,'NULL'))
> > >
> > > FETCH next FROM c INTO @.name,@.value
> > >
> > > END
> > > CLOSE c
> > > DEALLOCATE c
> > >
> > >
> > > END
> > >
> > > ---
> > > usp_replace----
> > >
> > >
> > > the table #prop looks like this after values are inserted in it in the
> > > main sp.
> > >
> > > name | value
> > > ---
> > > <attribute1> | attributvalue
> > > <attribute2 > | attribute2value
> > > ----
> > >
> > >
> > > finallly the string looks like this after returned from sp_replace
> > >
> > > ' attributvalue some text here attribute2value some text here
> > > <property1>'
> > > ----
> > >
> > >
> > >
> > >
> > > John Bell wrote:
> > > > Hi
> > > >
> > > > Can you give an example SQL Statement and the values in the table that will
> > > > be used and the code to usp_replace?
> > > >
> > > > John
> > > >
> > > > "Rishi" wrote:
> > > >
> > > > > Hi,
> > > > > the dynamic sql thing looks great, but i dont know how it will
> > > > > rescue me as a n aternative in this case. could you please throw some
> > > > > more light on this.
> > > > > probably my last post wasnt very clear, so the deal is:
> > > > >
> > > > > i have a table which has name value pairs.
> > > > > i have a string which has names as place holders for the values
> > > > > in the string i need to replace those names with the values as found in
> > > > > the table.
> > > > > i want a general reusable stored proc to acheive this.
> > > > > the way i am doing it as desribed in the first post works, but i want
> > > > > to know if that will pose any concurrency problems.
> > > > > since i want the sp to general and reusable i dont want to hard code
> > > > > and use the table name in the usp_replace sp.
> > > > >
> > > > > Please let me know your thoughts.
> > > > > Thanks,
> > > > > Rishi.
> > > > >
> > > > >
> > > > >
> > > > > John Bell wrote:
> > > > > > Hi
> > > > > >
> > > > > > If these are just values then you should be able to join to this table and
> > > > > > not need to resort to dynamic SQL. If you wish to change the SQL Statement
> > > > > > e.g. column names then
> > > > > > see
> > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_sp_ea-ez_2h7w.asp
> > > > > > but still pass variables for the values. You may want to look at
> > > > > > http://www.sommarskog.se/dynamic_sql.html and
> > > > > > http://www.sommarskog.se/dyn-search.html
> > > > > >
> > > > > > John
> > > > > >
> > > > > > "Rishi" wrote:
> > > > > >
> > > > > > > Thanks John!
> > > > > > > to be more precise on what im tryin to achieve is :
> > > > > > >
> > > > > > > To create a generic stored procedure that replace the occurence of
> > > > > > > certain "place holders" in a string.
> > > > > > > The placeholders' values are stored in a table as a name value pair.
> > > > > > > This table can be either generates on the fly as a temp table or be a
> > > > > > > permanent table.
> > > > > > >
> > > > > > > e.g. the string is '<name> who is <age> years old lives in <city>'
> > > > > > >
> > > > > > > the temp table will be
> > > > > > > name | value
> > > > > > > --
> > > > > > > <name> | jack
> > > > > > > <age> | 23
> > > > > > > <city> | NY
> > > > > > >
> > > > > > > appreciate your help, thanks!
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > John Bell wrote:
> > > > > > > > Hi
> > > > > > > >
> > > > > > > > If you have created the temporary table at the outer level it will be
> > > > > > > > available to the inner level procedure, therefore it should not be necessary
> > > > > > > > to pass the table name. For more on temporary tables read Books Online or at
> > > > > > > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_create2_8g9x.asp
> > > > > > > >
> > > > > > > > If many processes are creating/dropping temporary tables you can get
> > > > > > > > contention on tempdb, this can be limited to some degree by making sure that
> > > > > > > > tempdb is on it's own discs. Without knowing more about what you are trying
> > > > > > > > to achieve it is not possible to suggest an alternative approach.
> > > > > > > >
> > > > > > > > John
> > > > > > > >
> > > > > > > > "Rishi" wrote:
> > > > > > > >
> > > > > > > > > Hi,
> > > > > > > > > I want to know if the below mentioned pseudo code can pose a
> > > > > > > > > concurrency problem.
> > > > > > > > >
> > > > > > > > > declare @.string
> > > > > > > > >
> > > > > > > > > CREATE TABLE #temp
> > > > > > > > > (
> > > > > > > > > name VARCHAR(100),
> > > > > > > > > value VARCHAR(100)
> > > > > > > > > )
> > > > > > > > > --INSERT some value
> > > > > > > > >
> > > > > > > > > --Call another stored procedure that takes the table name and a string
> > > > > > > > >
> > > > > > > > > EXEC usp_replace '#temp',@.string OUTPUT
> > > > > > > > >
> > > > > > > > > // the usp_replace sp replaces occurence of 'name' with 'values' as per
> > > > > > > > > entries in #temp
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Now the question is that since im passing the table name and using it
> > > > > > > > > to query in the usp_replace could this mess up the values if multiple
> > > > > > > > > concurrent users execute it?
> > > > > > > > >
> > > > > > > > > Would really appreciate any thoughts on this. Thanks.
> > > > > > > > >
> > > > > > > > >
> > > > > > >
> > > > > > >
> > > > >
> > > > >
> > >
> > >
>

Wednesday, March 21, 2012

Posting Multi-Value Parameter

Hi,

I tried Posting the values for a multi value parameter from my application to the reporting services, But the query string is not being hidden. Why is that ? since the the data is sent through the browser address bar, I am not able to send values more than the allowed lenght. Is there any work around ?

Thanks In Advance

Regards

Raja Annamalai S

Hi Raja-

Yes, you will be limited to the URL length restriction. If possible I might suggest using the Web Service to render reports rather than crafting the URL. This will not be limited by URL length.

Otherwise you can perform a POST instead of a GET on the http call. The post will send the parameter values in the body rather than appended to the URL. However, all parameters need to be in the body if you perform a POST.

Thanks, Jon

Monday, March 12, 2012

Possible to use a Sharepoint List as a Datasource?

In Reporting Services 2005, is it possible to create a data connection to a sharepoint list? If so, what connection type and connection string do i use for this?It is possible using the Xml Data processing extension. Sharepoint exposes a Lists.asmx webservice, which can be queried using the Xml data processing extension.

Connection String:
http://<YourServerName>/sites/sitename/_vti_bin/Lists.asmx

Xml Query:

<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap/" Name="GetList">
</Method>
<ElementPath IgnoreNamspaces="true">GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

Dataset Parameter:
Name: listName, Value: The name of the list you want from the site.

Notes:
You may need to play with the ElementPath to get what you need. See this page for more information: http://msdn2.microsoft.com/en-us/library/ms365158.aspx|||

This is good as I have this exact requirement, but get

TITLE: Microsoft Report Designer

An error occurred while executing the query.
Failed to execute web request for the specified URL.

ADDITIONAL INFORMATION:

Failed to execute web request for the specified URL. (Microsoft.ReportingServices.DataExtensions)

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<soap:Fault>
<faultcode>soap:Server</faultcode>
<faultstring>Exception of type Microsoft.SharePoint.SoapServer.SoapServerException was thrown.</faultstring>
<detail>
<errorstring xmlns="http://schemas.microsoft.com/sharepoint/soap/">Value cannot be null.</errorstring>
</detail>
</soap:Fault>
</soap:Body>
</soap:Envelope>

BUTTONS:

Any ideas

|||

I would suggest that you use the informations provided by Teun Duynstee in this link:

http://www.teuntostring.net/blog/2005/09/reporting-over-sharepoint-lists-with.html

Cheers
Markus

|||The error that you are getting for the GetList method is most likely caused by not using the correct name of the list. The listName must be either the title or the GUID for the list.

For more info on this method http://msdn.microsoft.com/library/default.asp?url=/library/en-us/spptsdk/html/soapmListsGetList_SV01034346.asp

|||

Hi,

In case you are interested we are selling a reporting services (both 2000 and 2005 version) data extension for sharepoint.

This extension makes it possible to build report using sharepoint lists (including libraries).

Several lists may be joined using SQL-like operators.

Reports parameters may be used with the query string.

An evaluation version is available on our site at http://www.enesyssoftware.com/Default.aspx?tabid=56

If you prefer to do it by yourself, the article from Teun Duynstee is the way to go.

Frdric LATOUR

http://www.enesyssoftware.com

|||

Hi,

I have the same requirement of getting the data from List in SharePoint 2007. It exposed the method GetList(). I am using the same code which you have mentioned. But is not working.

Reporting Service SP 2 provide XML DataSource

Can you please rectify where i am going wrong. I have a List by name say: Announcements

How to Specify List Name and Where? I am unable to undertand your Dataset Parameter.

Dataset Parameter:
Name: listName, Value: The name of the list you want from the site.

I tried few combinations.

<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap" Name="GetList">
</Method>
<ElementPath IgnoreNamespaces="True">GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

Please help. As this will save me from writing DATA Extensions for my reports integration with sharepoint 2007

|||There are two ways to specify parameters for an Xml Data Processing Extension query.

1. Use the Reporting Services Dataset query parameters collection.

Add a query parameter to the dataset with the name 'listName' and value 'Announcements'.

2. Add the parameters directly to the Xmlk query, using the Parameters Xml element, which is a child of the Method element.

Add the following Xml as the child element to the Method element in the query above.

<Parameters>
<Parameter Name="listName">
<DefaultValue>Announcements</DefaultValue>
</Parameter>
</Parameters>

Ian|||

Hi,

I tried as you said now my query is. Previoisly i was not in sharepoint integration mode. so i was giving another error. Now i am getting the error as "Error While reading XML reponse"

My Data Source is:
http://localhost/Docs/vti_bin/Lists.asmx

My Query is :
<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap" Name="GetList">
<Parameters>
<Parameter Name="listName" Type="String">
<DefaultValue>Announcements</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath>GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

My Web Service is :

<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
<soap12:Body>
<GetListResponse xmlns="http://schemas.microsoft.com/sharepoint/soap/">
<GetListResult>
<xsd:schema>schema</xsd:schema>xml</GetListResult>
</GetListResponse>
</soap12:Body>
</soap12:Envelope>

I have tried all combinations. 1) Isn't there any tool where i can construct this query 2) I am not able to view the dataset result in XML, so that i can map it with <ElementPath>. I am not able to test webservice with this "http://localhost/Docs/_vti_bin/Lists.asmx?op=GetList" URL, to view the dataset result.

|||
The exception you see being thrown is usually a wrapped exception that occurs in the call in the request/response phase, most likely a permissions issue. Check the log files for more information about this exception.

Also, regarding the ElementPath:

Try setting the IgnoreNamespaces attribute to true on the ElementPath element:

Answers to your questions:

1. Unfortunately, no, there is no tool at this time.
2. After you set the attribute mentioned above, try making the ElementPath less restrictive and to return the Xml as is. For example, this will return one field containing the raw Xml of the GetListResult element. You can use this to information see what the elements are in the GetListResult.

<ElementPath IgnoreNamespaces="true">GetListResponse{GetListResult(XML)}</ElementPath>

Ian|||

Hi,

This time i tried all below combionations bit its still not working. I have wasted lot of effots on this and this is very important for me to get it solved.

ERROR its Gives in Log is
<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><soap:Fault><faultcode>soap:Server</faultcode><faultstring>Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown.</faultstring><detail><errorstring xmlns="http://schemas.microsoft.com/sharepoint/soap/">Value cannot be null.</errorstring></detail></soap:Fault></soap:Body></soap:Envelope>

http://localhost/_vti_bin/Lists.asmx

GUID
<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Name="GetList" Namespace= "http://schemas.microsoft.com/sharepoint/soap">
<Parameters>
<Parameter Name="listName">
<DefaultValue>21CF03AF-3A7E-479C-98E0-CBE0F16A594A</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="true">GetListResponse{GetListResult(XML)}</ElementPath>
</Query>

WithOut GUID
<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Name="GetList" Namespace= "http://schemas.microsoft.com/sharepoint/soap">
<Parameters>
<Parameter Name="listName">
<DefaultValue>Contacts</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="true">GetListResponse{GetListResult(XML)}</ElementPath>
</Query>

GUID
<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap" Name="GetList">
<Parameters>
<Parameter Name="listName">
<DefaultValue>21CF03AF-3A7E-479C-98E0-CBE0F16A594A</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="True">GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

WithOut GUID
<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap" Name="GetList">
<Parameters>
<Parameter Name="listName">
<DefaultValue>Contacts</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="True">GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

Please Help!!!

|||Ok, I tracked down the culprit. The Method element in your tests and the example I provided above differ very slightly. The namespace for the web service ends with a '/', which was mssing from in your query. This caused the method portion of the soap request sent to the server to exist in a different namespace than was expected, which caused it to be interpreted as null.

To reslove this issue, append a '/' to end of the Namespace attribute value in the Method element.

Ian|||

Thanks a lot it worked.

Working Query is

<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap/" Name="GetList">
<Parameters>
<Parameter Name="listName">
<DefaultValue>Announcements</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="True">GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

Possible to use a Sharepoint List as a Datasource?

Connection String:
http://<YourServerName>/sites/sitename/_vti_bin/Lists.asmx

Xml Query:

Dataset Parameter:
Name: listName, Value: The name of the list you want from the site.

Notes:
You may need to play with the ElementPath to get what you need. See this page for more information: http://msdn2.microsoft.com/en-us/library/ms365158.aspx|||

This is good as I have this exact requirement, but get

TITLE: Microsoft Report Designer

An error occurred while executing the query.
Failed to execute web request for the specified URL.

ADDITIONAL INFORMATION:

Failed to execute web request for the specified URL. (Microsoft.ReportingServices.DataExtensions)

BUTTONS:

Any ideas

|||

I would suggest that you use the informations provided by Teun Duynstee in this link:

http://www.teuntostring.net/blog/2005/09/reporting-over-sharepoint-lists-with.html

Cheers
Markus

|||The

error that you are getting for the GetList method is most likely caused

by not using the correct name of the list. The listName must be either the

title or the GUID for the list.

For more info on this method http://msdn.microsoft.com/library/default.asp?url=/library/en-us/spptsdk/html/soapmListsGetList_SV01034346.asp

|||

Hi,

In case you are interested we are selling a reporting services (both 2000 and 2005 version) data extension for sharepoint.

This extension makes it possible to build report using sharepoint lists (including libraries).

Several lists may be joined using SQL-like operators.

Reports parameters may be used with the query string.

An evaluation version is available on our site at http://www.enesyssoftware.com/Default.aspx?tabid=56

If you prefer to do it by yourself, the article from Teun Duynstee is the way to go.

Frdric LATOUR

http://www.enesyssoftware.com

|||

Hi,

I have the same requirement of getting the data from List in SharePoint 2007. It exposed the method GetList(). I am using the same code which you have mentioned. But is not working.

Reporting Service SP 2 provide XML DataSource

Can you please rectify where i am going wrong. I have a List by name say: Announcements

How to Specify List Name and Where? I am unable to undertand your Dataset Parameter.

Dataset Parameter:
Name: listName, Value: The name of the list you want from the site.

I tried few combinations.

Please help. As this will save me from writing DATA Extensions for my reports integration with sharepoint 2007

|||There are two ways to specify parameters for an Xml Data Processing Extension query.

1. Use the Reporting Services Dataset query parameters collection.

Add a query parameter to the dataset with the name 'listName' and value 'Announcements'.

2. Add the parameters directly to the Xmlk query, using the Parameters Xml element, which is a child of the Method element.

Add the following Xml as the child element to the Method element in the query above.

<Parameters>
<Parameter Name="listName">
<DefaultValue>Announcements</DefaultValue>
</Parameter>
</Parameters>

Ian|||

Hi,

I tried as you said now my query is. Previoisly i was not in sharepoint integration mode. so i was giving another error. Now i am getting the error as "Error While reading XML reponse"

My Data Source is:
http://localhost/Docs/vti_bin/Lists.asmx

My Web Service is :

Also, regarding the ElementPath:

Try setting the IgnoreNamespaces attribute to true on the ElementPath element:

Answers to your questions:

<ElementPath IgnoreNamespaces="true">GetListResponse{GetListResult(XML)}</ElementPath>

Ian|||

Hi,

This time i tried all below combionations bit its still not working. I have wasted lot of effots on this and this is very important for me to get it solved.

http://localhost/_vti_bin/Lists.asmx

Please Help!!!

To reslove this issue, append a '/' to end of the Namespace attribute value in the Method element.

Ian|||

Thanks a lot it worked.

Working Query is

<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap/" Name="GetList">
<Parameters>
<Parameter Name="listName">
<DefaultValue>Announcements</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="True">GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

Possible to use a Sharepoint List as a Datasource?

Connection String:
http://<YourServerName>/sites/sitename/_vti_bin/Lists.asmx

Xml Query:

Dataset Parameter:
Name: listName, Value: The name of the list you want from the site.

Notes:
You may need to play with the ElementPath to get what you need. See this page for more information: http://msdn2.microsoft.com/en-us/library/ms365158.aspx|||

This is good as I have this exact requirement, but get

TITLE: Microsoft Report Designer

An error occurred while executing the query.
Failed to execute web request for the specified URL.

ADDITIONAL INFORMATION:

Failed to execute web request for the specified URL. (Microsoft.ReportingServices.DataExtensions)

BUTTONS:

Any ideas

|||

I would suggest that you use the informations provided by Teun Duynstee in this link:

http://www.teuntostring.net/blog/2005/09/reporting-over-sharepoint-lists-with.html

Cheers
Markus

|||The

error that you are getting for the GetList method is most likely caused

by not using the correct name of the list. The listName must be either the

title or the GUID for the list.

For more info on this method http://msdn.microsoft.com/library/default.asp?url=/library/en-us/spptsdk/html/soapmListsGetList_SV01034346.asp

|||

Hi,

In case you are interested we are selling a reporting services (both 2000 and 2005 version) data extension for sharepoint.

This extension makes it possible to build report using sharepoint lists (including libraries).

Several lists may be joined using SQL-like operators.

Reports parameters may be used with the query string.

An evaluation version is available on our site at http://www.enesyssoftware.com/Default.aspx?tabid=56

If you prefer to do it by yourself, the article from Teun Duynstee is the way to go.

Frdric LATOUR

http://www.enesyssoftware.com

|||

Hi,

I have the same requirement of getting the data from List in SharePoint 2007. It exposed the method GetList(). I am using the same code which you have mentioned. But is not working.

Reporting Service SP 2 provide XML DataSource

Can you please rectify where i am going wrong. I have a List by name say: Announcements

How to Specify List Name and Where? I am unable to undertand your Dataset Parameter.

Dataset Parameter:
Name: listName, Value: The name of the list you want from the site.

I tried few combinations.

Please help. As this will save me from writing DATA Extensions for my reports integration with sharepoint 2007

|||There are two ways to specify parameters for an Xml Data Processing Extension query.

1. Use the Reporting Services Dataset query parameters collection.

Add a query parameter to the dataset with the name 'listName' and value 'Announcements'.

2. Add the parameters directly to the Xmlk query, using the Parameters Xml element, which is a child of the Method element.

Add the following Xml as the child element to the Method element in the query above.

<Parameters>
<Parameter Name="listName">
<DefaultValue>Announcements</DefaultValue>
</Parameter>
</Parameters>

Ian|||

Hi,

I tried as you said now my query is. Previoisly i was not in sharepoint integration mode. so i was giving another error. Now i am getting the error as "Error While reading XML reponse"

My Data Source is:
http://localhost/Docs/vti_bin/Lists.asmx

My Web Service is :

Also, regarding the ElementPath:

Try setting the IgnoreNamespaces attribute to true on the ElementPath element:

Answers to your questions:

<ElementPath IgnoreNamespaces="true">GetListResponse{GetListResult(XML)}</ElementPath>

Ian|||

Hi,

This time i tried all below combionations bit its still not working. I have wasted lot of effots on this and this is very important for me to get it solved.

http://localhost/_vti_bin/Lists.asmx

Please Help!!!

To reslove this issue, append a '/' to end of the Namespace attribute value in the Method element.

Ian|||

Thanks a lot it worked.

Working Query is

<Query>
<SoapAction>http://schemas.microsoft.com/sharepoint/soap/GetList</SoapAction>
<Method Namespace="http://schemas.microsoft.com/sharepoint/soap/" Name="GetList">
<Parameters>
<Parameter Name="listName">
<DefaultValue>Announcements</DefaultValue>
</Parameter>
</Parameters>
</Method>
<ElementPath IgnoreNamespaces="True">GetListResponse{}/GetListResult{}/List/Fields/Field</ElementPath>
</Query>

Friday, March 9, 2012

Possible to have link server in the connection string?

Hi,
I have an application which requires a server name (connection string)
in the configuration for connection. There isn't any big issue if I am
just connecting to a regular server. e.g. just entering the server
name (server1), however, now my question is is it possible to put in a
linked server within a server name e.g. server1..linkserver1? In fact,
I need the connection to linkserver1 instead. I have a linkserver
since the server can't be connected directly.
Please advice the exact format (e.g. server1..linkserver1 ) if there
is any. Thanks in advance. And your help would be greatly appreciated.On Feb 28, 12:26=A0pm, sweetpota...@.gmail.com wrote:
> Hi,
> I have an application which requires a server name (connection string)
> in the configuration for connection. There isn't any big issue if I am
> just connecting to a regular server. e.g. just entering the server
> name (server1), however, now my question is is it possible to put in a
> linked server within a server name e.g. server1..linkserver1? In fact,
> I need the connection to linkserver1 instead. I have a linkserver
> since the server can't be connected directly.
> Please advice the exact format (e.g. server1..linkserver1 ) if there
> is any. Thanks in advance. And your help would be greatly appreciated.
Or
If this is the configuration setup:
Server Name: Server1
Database Name: linkserver1..DB1
Will that work?
Thanks

Friday, March 23, 2012

Potential Concurrency Issue?

Wednesday, March 21, 2012

Posting Multi-Value Parameter

Monday, March 12, 2012

Possible to use a Sharepoint List as a Datasource?

Possible to use a Sharepoint List as a Datasource?

Possible to use a Sharepoint List as a Datasource?

Friday, March 9, 2012

Possible to have link server in the connection string?

PORTS USED

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