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When writing long query’s or stored procedures using temporary tables, you may run into an error like:

Cannot resolve the collation conflict between “Latin1_General_CI_AS” and “SQL_Latin1_General_CP1_CI_AS” in the equal to operation.

The cause of this error is that the tables you are querying against have a different collation then the server default. This causes the temporary tables in TempDb.. to have a different collation too.

To specify the collation your database has during the creation of your temptable, implemenet it like this:

-- Clear out temp. table if it already exists
begin try
	drop table #sometable
end try
begin catch
end catch

-- Create with enforced collation
create table #sometable (
field1 nvarchar(50) collate Latin1_General_CI_AS,
field2 nvarchar(50) collate Latin1_General_CI_AS,
.....
)

This entry was posted on Friday, May 6th, 2011 at 10:27 am and is filed under SQL. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.