DROP DB_DISCOVERY TYPE
语法用于为指定逻辑库删除数据库发现类型
DropDatabaseDiscoveryType ::=
'DROP' 'DB_DISCOVERY' 'TYPE' ifExists? dbDiscoveryTypeName (',' dbDiscoveryTypeName)* ('FROM' databaseName)?
ifExists ::=
'IF' 'EXISTS'
dbDiscoveryTypeName ::=
identifier
databaseName ::=
identifier
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
;dbDiscoveryTypeName
需要通过 SHOW DB_DISCOVERY TYPE 语法查询获得;ifExists
子句用于避免 Database discovery type not exists
错误。DROP DB_DISCOVERY TYPE group_0_mysql_mgr, group_1_mysql_mgr FROM discovery_db;
DROP DB_DISCOVERY TYPE group_0_mysql_mgr;
ifExists
子句删除数据库发现类型DROP DB_DISCOVERY TYPE IF EXISTS group_0_mysql_mgr;
DROP
、DB_DISCOVERY
、TYPE
、FROM