COUNT ENCRYPT RULE 语法用于查询指定逻辑库中的加密规则数量。
CountEncryptRule::=
'COUNT' 'ENCRYPT' 'RULE' ('FROM' databaseName)?
databaseName ::=
identifier
databaseName 时，默认是当前使用的 DATABASE。 如果也未使用 DATABASE 则会提示 No database selected。| 列 | 说明 |
|---|---|
| rule_name | 规则类型 |
| database | 规则所属逻辑库 |
| count | 规则数量 |
COUNT ENCRYPT RULE FROM encrypt_db;
mysql> COUNT ENCRYPT RULE FROM encrypt_db;
+-----------+---------------+-------+
| rule_name | database | count |
+-----------+---------------+-------+
| encrypt | encrypt_db | 2 |
+-----------+---------------+-------+
1 row in set (0.01 sec)
COUNT ENCRYPT RULE;
mysql> COUNT ENCRYPT RULE;
+-----------+---------------+-------+
| rule_name | database | count |
+-----------+---------------+-------+
| encrypt | encrypt_db | 2 |
+-----------+---------------+-------+
1 row in set (0.01 sec)
COUNT、ENCRYPT、RULE、FROM