DROP SHARDING TABLE REFERENCE RULE
语法用删除指定的关联规则
DropShardingTableReferenceRule ::=
'DROP' 'SHARDING' 'TABLE' 'REFERENCE' 'RULE' ruleName (',' ruleName)*
ruleName ::=
identifier
DROP SHARDING TABLE REFERENCE RULE ref_0;
DROP SHARDING TABLE REFERENCE RULE ref_0, ref_1;
DROP
、SHARDING
、TABLE
、REFERENCE
、RULE