DELETE FROM
Deletes rows that match the WHERE clause, from the table.
Note
The changes of the table state can't be tracked within a single transaction. If the table has already been changed, use DELETE ON to delete the data within the same transaction.
Example
DELETE FROM my_table
WHERE Key1 == 1 AND Key2 >= "One";
COMMIT;
DELETE FROM ... ON
Used to delete the data, if the table has already been changed within the same transaction.
Example
$to_delete = (
SELECT Key, SubKey FROM my_table WHERE Value = "ToDelete"
);
SELECT * FROM my_table;
DELETE FROM my_table ON
SELECT * FROM $to_delete;
COMMIT;