IF NOT EXISTS(SELECT * FROM Table1 WHERE Value = 1) BEGIN DELETE FROM Table2 WHERE Value = 1 END
DELETE t2 FROM table2 AS t2 INNER JOIN table1 ON table1.Value = t2.Value WHERE table1.Value = 1
DELETE FROM table1 WHERE NOT EXISTS ( select value from table2 where value = 1 )
delete table2 where value not in (select value from table1)
var
This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)