Question

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SQL server ignore case in a where expression

basically I need to check something like this

select * from users where name = @name, pass = @pass

the problem is that 'pass' = 'pAsS'

is there something more strict for string comparison in sql (ms sql-server)

Answer 1

It’s down to your collation, which it would seem is case insensitive. For example, the standard collation is Latin1_General_CI_AS, where the CI means case insensitive. You can force a different collaction for a different comparison:

select  *
from    users
where   name = @name
and     pass COLLATE Latin1_General_CS_AS = @pass COLLATE Latin1_General_CS_AS

Incidentally, you shouldn’t be storing passwords in your database – you should be salting and hashing them.