DROP SEQUENCE
DROP SEQUENCE 语句用于删除 TiDB 中的序列对象。
概述
- DropSequenceStmt
- IfExists
- TableNameList
- TableName
DropSequenceStmt ::=
'DROP' 'SEQUENCE' IfExists TableNameList
IfExists ::= ( 'IF' 'EXISTS' )?
TableNameList ::=
TableName ( ',' TableName )*
TableName ::=
Identifier ('.' Identifier)?
示例
DROP SEQUENCE seq;
Query OK, 0 rows affected (0.10 sec)
DROP SEQUENCE seq, seq2;
Query OK, 0 rows affected (0.03 sec)
MySQL 兼容性
该语句是 TiDB 的扩展功能。其实现借鉴了 MariaDB 中的序列机制。