DROP SHARDING TABLE REFERENCE RULE
描述
DROP SHARDING TABLE REFERENCE RULE
语法用删除指定的关联规则
语法定义
语法 铁路图
DropShardingTableReferenceRule ::=
'DROP' 'SHARDING' 'TABLE' 'REFERENCE' 'RULE' ifExists? shardingReferenceRuleName (',' shardingReferenceRuleName)*
ifExists ::=
'IF' 'EXISTS'
shardingReferenceRuleName ::=
identifier
补充说明
ifExists
子句用于避免Sharding reference rule not exists
错误。
示例
- 删除单个关联规则
DROP SHARDING TABLE REFERENCE RULE ref_0;
- 删除多个关联规则
DROP SHARDING TABLE REFERENCE RULE ref_0, ref_1;
- 使用
ifExists
子句删除关联规则
DROP SHARDING TABLE REFERENCE RULE IF EXISTS ref_0;
保留字
DROP
、SHARDING
、TABLE
、REFERENCE
、RULE
相关链接
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