Hi Sergey,

>The fastest way to check if record or records exist in Sql Server is to use EXISTS operator.
>

SELECT CASE WHEN EXISTS (
>		SELECT * FROM pubs..authors WHERE au_id = '213-46-8915') THEN 1
>	ELSE 0 END

The problem is, he wants to have a solution that can be used with most DB servers. AFAIK "CASE" is not supported on some (or many?) systems (Ingres for example).

Armin