I understand what test% might mean, but don't know what test\_% means. Following is from a fresh MySQL install ...
mysql> use mysql; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> select * from db; +------+---------+------+-------------+-------------+-------------+-------------+-------------+-----------+------------+-----------------+------------+------------+ | Host | Db | User | Select_priv | Insert_priv | Update_priv | Delete_priv | Create_priv | Drop_priv | Grant_priv | References_priv | Index_priv | Alter_priv | +------+---------+------+-------------+-------------+-------------+-------------+-------------+-----------+------------+-----------------+------------+------------+ | % | test | | Y | Y | Y | Y | Y | Y | N | Y | Y | Y | | % | test\_% | | Y | Y | Y | Y | Y | Y | N | Y | Y | Y | +------+---------+------+-------------+-------------+-------------+-------------+-------------+-----------+------------+-----------------+------------+------------+ 2 rows in set (0.00 sec)
