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Oracle 觸發器 插入,更新,刪除,資料同步,兩表同步

create or replace trigger UserToTemp after insert or update or delete
on user_info for each row
declare
    integrity_error exception;
    errno            integer;
    errmsg           char(200);
    dummy            integer;
    found            boolean;
    
begin
if inserting then
    insert into User_info_temp(ID,UserName,PassWord,CreateDate,Status) values(:NEW.ID,:NEW.UserName,:NEW.PassWord,:new.CreateDate,:NEW.Status);
elsif updating then 
    update User_info_temp set ID=:NEW.ID,UserName=:NEW.UserName,PassWord=:NEW.PassWord,Status=:NEW.Status where id=:OLD.id;
elsif deleting then
    delete from User_info_temp where id=:OLD.id;
end if;
exception
    when integrity_error then
       raise_application_error(errno, errmsg);
end;