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COUNT ENCRYPT RULE

Description

The COUNT ENCRYPT RULE syntax is used to query the number of encrypt rules for specified database.

Syntax

CountEncryptRule::=
  'COUNT' 'ENCRYPT' 'RULE' ('FROM' databaseName)?

databaseName ::=
  identifier

Supplement

  • When databaseName is not specified, the default is the currently used DATABASE. If DATABASE is not used, No database selected will be prompted.

Return value description

Column Description
rule_name rule type
database the database to which the rule belongs
count the number of the rule

Example

  • Query the number of encrypt rules for specified database.
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)
  • Query the number of encrypt rules for current database.
COUNT ENCRYPT RULE;
mysql> COUNT ENCRYPT RULE;
+-----------+---------------+-------+
| rule_name | database      | count |
+-----------+---------------+-------+
| encrypt   | encrypt_db    | 2     |
+-----------+---------------+-------+
1 row in set (0.01 sec)

Reserved word

COUNT, ENCRYPT, RULE, FROM