一 语法
DISABLE|ENABLE CONSTRAINT constraint_name
二 代码
@H_301_13@
sql>select constraint_name,constraint_type,status from user_constraints2where table_name ='USERINFO_U2';CONSTRAINT_NAME C STATUS---------------------------------------SYS_C0011117 P ENABLEDUN_USERNAME_NEW U ENABLEDsql> alter table userinfo_u22 disable constraint UN_USERNAME_NEW;表已更改。sql" style="font-family: Consolas,status from user_constraints2where table_name ='USERINFO_U2';CONSTRAINT_NAME C STATUS---------------------------------------SYS_C0011117 P ENABLEDUN_USERNAME_NEW U DISABLED
三 语法
DROP CONSTRAINT constraint_name
四 代码
