Question

Let’s say I have two tables:

tableA
-------
type   (varchar)
name   (varchar)

tableB
-------
name   (varchar)
...

I want to delete all records from tableA where type='foo'. I can do this as follows:

$STH=$DBH->prepare("DELETE FROM tableA WHERE type = :t");
$STH->bindParam(':t','foo');
try {
    $STH->execute();
} catch(PDOException $e) {
    echo $e->getMessage();
}

I then want to note the name field in each of the records that I deleted from tableA and use this to delete any records in tableB with those names. How can I do that?

I want something equivalent to $DBH->lastInsertId(); except that it passes back all the name fields from the deleted records.

Thanks.

Answer 1

you can join both tables and perform delete on them, eg

DELETE  a, b
FROM    table1 a
        INNER JOIN table2 b
          ON a.name = b.name
WHERE   a.type = 'foo'

• SQLFiddle Demo Link