DROP SHARDING TABLE REFERENCE RULE

Description

The DROP SHARDING TABLE REFERENCE RULE syntax is used to drop specified sharding table reference rule.

Syntax

Grammar Railroad diagram

DropShardingTableReferenceRule ::=
  'DROP' 'SHARDING' 'TABLE' 'REFERENCE' 'RULE' ifExists? shardingReferenceRuleName (',' shardingReferenceRuleName)*
ifExists ::=
  'IF' 'EXISTS'
shardingReferenceRuleName ::=
  identifier

Supplement

• ifExists clause is used for avoid Sharding reference rule not exists error.

Example

• Drop a specified sharding table reference rule

DROP SHARDING TABLE REFERENCE RULE ref_0;

• Drop multiple sharding table reference rules

DROP SHARDING TABLE REFERENCE RULE ref_0, ref_1;

• Drop sharding table reference rule with ifExists clause

DROP SHARDING TABLE REFERENCE RULE IF EXISTS ref_0;

Reserved word

DROP, SHARDING, TABLE, REFERENCE, RULE

Related links

• Reserved word