The COUNT MASK RULE syntax is used to query the number of mask rules for specified database.
CountMaskRule::=
'COUNT' 'MASK' 'RULE' ('FROM' databaseName)?
databaseName ::=
identifier
databaseName is not specified, the default is the currently used DATABASE. If DATABASE is not used, No database selected will be prompted.| Column | Description |
|---|---|
| rule_name | rule type |
| database | the database to which the rule belongs |
| count | the number of the rule |
COUNT MASK RULE FROM mask_db;
mysql> COUNT MASK RULE FROM mask_db;
+-----------+----------+-------+
| rule_name | database | count |
+-----------+----------+-------+
| mask | mask_db | 3 |
+-----------+----------+-------+
1 row in set (0.50 sec)
COUNT MASK RULE;
mysql> COUNT MASK RULE;
+-----------+----------+-------+
| rule_name | database | count |
+-----------+----------+-------+
| mask | mask_db | 3 |
+-----------+----------+-------+
1 row in set (0.50 sec)
COUNT, MASK, RULE, FROM