Question

The following sql query works fine on my development server running mysql 5, but when I try it on my live server running mysql 4 it throws an error, can anyone help show me how to adapt my query to run on mysql 4?

select * FROM Properties WHERE propertyid IN (select id from todelete)

Answer 1

SELECT * FROM Properties RIGHT JOIN todelete ON (Properties.propertyid = todelete.id);

To delete all rows from Properties which match this condition use this:

DELETE Properties FROM Properties INNER JOIN todelete ON (Properties.propertyid = todelete.id);

See T-SQL: Selecting rows to delete via joins