SQL Delete Rows Based on Another Table

Question

This is probably very easy, but it\'s Monday morning. I have two tables:

Table1:

Field        | Type             | Null | Key | Default | Extra
id           


        

Answer 1

The nice solution is just writing the SQL as you say it yourself already:

DELETE FROM Table1
WHERE
  EXISTS(SELECT 1 FROM Table2 WHERE Table2.Group = Table1.Group)

Regards, Arno Brinkman