Simple check for SELECT query empty result

Can anyone point out how to check if a select query returns non empty result set?

For example I have next query:

SELECT * FROM service s WHERE s.service_id = ?;

Should I do something like next:

ISNULL(SELECT * FROM service s WHERE s.service_id = ?)

to test if result set is not empty?

Answer

Use @@ROWCOUNT:

SELECT * FROM service s WHERE s.service_id = ?;

IF @@ROWCOUNT > 0 
   -- do stuff here.....

According to SQL Server Books Online:

Returns the number of rows affected by the last statement. If the number of rows is more than 2 billion, use ROWCOUNT_BIG.