Identity_insert not happening

I am setting insert_identity to on for a table in t-sql.
The table name is passed as a parameter in the tsql procedure.

When i write the following code.
set @.setStr = 'set IDENTITY_INSERT ' + @.toTableName +' ON'
execute (@.setStr)

and then set the insert query and execute it as follows:

set @.insQuery = 'insert into ' + @.toTableName + ' ( ' + @.colString + ') select ' + @.colString + ' from ' + @.fromTableName
execute(@.insQuery)

when i execute the procedure it doesnt insert values into the table and gives the following error though i am setting the identity to on.

Error: cannot insert explicit value for identity column in table 'emp' when IDENTITY_INSERT is set to OFF.

i cant make out why it is not applying identity_insert to the table.
Can anybody help me out.

Thank YouDon't use EXECUTE as it will run in a different thread/process to the rest of your code - so the code which follows the call, doesn't know anything about the fact you have set IDENTITY_INSERT to ON.

Try using sp_executesql instead. (Books Online has more information on how to use this system stored proc)

macka.|||it doesnt work... :(
beacuse i've to use exec to execute the sp_executesql proc.
so it gives the same result..

so i can try to make one string by putting a newline character between the following 2 strings... and then just run one string... i guess it might be possible..

'set IDENTITY_INSERT ' + @.toTableName +' ON'

and

'insert into ' + @.toTableName + ' ( ' + @.colString + ') select ' + @.colString + ' from ' + @.fromTableName

but the problem is that i dont know how to append a newline character in the string \r \n \\r \\n dont work... can somebody suggest something on this...

Originally posted by macka
Don't use EXECUTE as it will run in a different thread/process to the rest of your code - so the code which follows the call, doesn't know anything about the fact you have set IDENTITY_INSERT to ON.

Try using sp_executesql instead. (Books Online has more information on how to use this system stored proc)

macka.|||Why not just build it as a single string with space between the statements ? I've just tested that and it works fine.

macka.|||Thanks for this.. i really appriciate ur help...
space works and actually newline character is char(10).. it works with this too... :)

Originally posted by macka
Why not just build it as a single string with space between the statements ? I've just tested that and it works fine.

macka.