MySQL triggers cannot update rows in same table the trigger is assigned to. Suggested workaround?

Question

MySQL doesn\'t currently support updating rows in the same table the trigger is assigned to since the call could become recursive. Does anyone have suggestions on a good wor

Answer 1

You can actually up the rows in the same table as the trigger. The thread you linked to even has the solution.

For example:

TestTable ( id / lastmodified / random )

create trigger insert_lastmod
before insert on TestTable
for each row
set NEW.lastmodified = NOW();

insert into TestTable ( `random` ) values ( 'Random' );

select * from TestTable;
+----+---------------------+---------------------+
| id | lastmodified        | random              |
+----+---------------------+---------------------+
|  1 | 2010-12-22 14:15:23 | Random              |
+----+---------------------+---------------------+