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...
--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...
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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...
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 ...
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: ...
Disable or enable all triggers belonging to the table except for internally generated constraint triggers such as those that are used to implement foreign key constraints or deferrable uniqueness and exclusion constraints. (内部用于foreign key, unique, 排他 等约束的触发器除外) ...
Now it gets an ORA-00054 because "ENABLE NOVALIDATE constraint" needs a lock on the referenced tables (but these are currently locked by other load processes). Changes After upgrade from 10g to 11g Cause Sign In To view full details, sign in with your My Oracle Support account. Register ...
library: Database: - name:Oracle - version:Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Version 19.10.0.0.0 - minor version:0 Driver: - name:Oracle JDBC driver - version:19.3.0.0.0 java.sql.SQLIntegrityConstraintViolationException: ORA-02296: cannot enable (...
参考:https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=PROBLEM&id=1273754.1 An important side effect is that if the constraint is validated then the optimizer can use trust the NOT NULL and use that in decisions. If the NOT NULL is not validated then the optimizer canno...