oracle enable / disable all constraint begin for i in (select constraint_name, table_name from user_constraints where table_name='') LOOP execute immediate 'alter table '||i.table_name||' enable constraint '||i.constraint_name||''; end loop; end; / COMMIT; -- begin for i in (selec...
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--先使用disable validate使外键失效 SQL> alter table f_table disable validate constraint fk_ftable_id; alter table f_table disable validate constraint fk_ftable_id * ERROR at line 1: ORA-02298: cannot validate (ORA1.FK_FTABLE_ID) - parent keys not found SQL> select * from f_table; I...
I am trying to enable a unique constraint on a table. i am getting error ORA-02299 DUPLICATE KEYS FOUND this uniques constraint is made up of four columns. i have run a script to check for duplicates using the four columns but query returns zero rows what i'm i missing here? Thanks k...
最近在看tom的《Effective Oracle by design》,其中第6章6.3.8节有个例子是给表添加主键,但是不想对已经存在的数据进行校验: alter table dept add constraint dept_pk primary key(deptno) rely enable novalidate; 我经过测试,发现即使加上novalidate语法也还是要检验的,测试如下: ...
ENABLE Clause Enable constraints (or triggers) Syntax: ENABLE [[NO]VALIDATE] [UNIQUE] (column [,…] )options[CASCADE] [{DROP|KEEP} INDEX] ENABLE [[NO]VALIDATE] PRIMARY KEYoptions[CASCADE] [{DROP|KEEP} INDEX] ENABLE [[NO]VALIDATE] CONSTRAINT constraint_nameoptions[CASCADE] [{DROP|KEEP} ...
Am I mistaken about how a foreign key constraint is re-enabled? Any thoughts would be much appreciated. Thanks Erik -- Please see the official ORACLE-L FAQ:http://www.orafaq.com-- Author: Erik Williams INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) ...
WHERE constraint_type ='P' AND status = 'DISABLED' ) LOOP EXECUTE IMMEDIATE 'alter table "' ||i.table_name|| '" enable constraint ' ||i.constraint_name; END LOOP i; FOR i IN (SELECT table_name, constraint_name -- then enable all constraints ...
5 Oracle SQL> alter table test enable novalidate constraint ck_id; Table altered SQL> insert into test values(32, 'SAP'); 1 row inserted SQL> insert into test values(3, 'Linux'); insert into test values(3, 'Linux') ORA-02290:违反检查约束条件(MYHR.CK_ID) ...
SQL> alter table a modify constraint ck_a disable validate; Table altered. --oracle 的语法真奇怪,前面我使用的是alter table a disable validate constraint ck_a;也可以。 --还是这里使用的语法更好1点。 SQL> insert into a values(19);