SHOW SHADOW RULE

描述

SHOW SHADOW RULE 语法用于查询指定逻辑库中的影子规则。

语法

语法 铁路图

ShowEncryptRule::=
  'SHOW' 'SHADOW' ('RULES' | 'RULE' shadowRuleName) ('FROM' databaseName)?
shadowRuleName ::=
  identifier
databaseName ::=
  identifier

补充说明

• 未指定 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。

返回值说明

示例

• 查询指定逻辑库中的指定影子规则

SHOW SHADOW RULE shadow_rule FROM shadow_db;

mysql> SHOW SHADOW RULE shadow_rule FROM shadow_db;
+-------------+-------------+-------------+----------------------+
| rule_name   | source_name | shadow_name | shadow_table         |
+-------------+-------------+-------------+----------------------+
| shadow_rule | ds_0        | ds_1        | t_order_item,t_order |
+-------------+-------------+-------------+----------------------+
1 row in set (0.00 sec)

• 查询当前逻辑库中的指定影子规则

SHOW SHADOW RULE shadow_rule;

mysql> SHOW SHADOW RULE shadow_rule;
+-------------+-------------+-------------+----------------------+
| rule_name   | source_name | shadow_name | shadow_table         |
+-------------+-------------+-------------+----------------------+
| shadow_rule | ds_0        | ds_1        | t_order_item,t_order |
+-------------+-------------+-------------+----------------------+
1 row in set (0.01 sec)

• 查询指定逻辑库中的影子规则

SHOW SHADOW RULES FROM shadow_db;

mysql> SHOW SHADOW RULES FROM shadow_db;
+-------------+-------------+-------------+----------------------+
| rule_name   | source_name | shadow_name | shadow_table         |
+-------------+-------------+-------------+----------------------+
| shadow_rule | ds_0        | ds_1        | t_order_item,t_order |
+-------------+-------------+-------------+----------------------+
1 row in set (0.00 sec)

• 查询当前逻辑库中的影子规则

SHOW SHADOW RULES;

mysql> SHOW SHADOW RULES;
+-------------+-------------+-------------+----------------------+
| rule_name   | source_name | shadow_name | shadow_table         |
+-------------+-------------+-------------+----------------------+
| shadow_rule | ds_0        | ds_1        | t_order_item,t_order |
+-------------+-------------+-------------+----------------------+
1 row in set (0.00 sec)

保留字

SHOW、SHADOW、RULE、RULES、FROM

相关链接

• 保留字