Php 违反完整性约束-发现子记录异常
当我收到错误ORA-02292:违反完整性约束-找到子记录时,我想在我的网站中显示一条警报(很抱歉,此类型无法删除)消息。如何创建该异常?从php还是从数据库,具体是如何实现的 我试过这样的东西Php 违反完整性约束-发现子记录异常,php,oracle,exception,error-handling,Php,Oracle,Exception,Error Handling,当我收到错误ORA-02292:违反完整性约束-找到子记录时,我想在我的网站中显示一条警报(很抱歉,此类型无法删除)消息。如何创建该异常?从php还是从数据库,具体是如何实现的 我试过这样的东西 begin -- Test statements here DELETE FROM PETTYPE WHERE PET_TYPE_CODE = 40; COMMIT; EXCEPTION WHEN CHILD_RECORD_FO
begin
-- Test statements here
DELETE FROM PETTYPE
WHERE PET_TYPE_CODE = 40;
COMMIT;
EXCEPTION
WHEN CHILD_RECORD_FOUND
THEN Dbms_Output.put_line('ERROR');
end;
但它不起作用,因为未声明找到的子记录
如有任何建议,将不胜感激!:) 当其他人
create table ref1 ( a int primary key);
create table ref2 (a int references ref1(a));
SQL> select * from ref1;
A
----------
1
2
SQL> select * from ref2;
A
----------
1
2
set serveroutput on
SQL> declare
2 begin
3 -- Test statements here
4 DELETE FROM REF1
5 WHERE a = 1;
6 COMMIT;
7 EXCEPTION
8 WHEN others then
9 Dbms_Output.put_line('Im sorry but this type cannot be deleted');
10
11
12 end;
13 /
Im sorry but this type cannot be deleted
PL/SQL procedure successfully completed.
您可以使用PRAGMA exception_INIT声明将自己的异常类型与内部Oracle错误号相关联。文件: