Oracle APEX 触发器 - 当我在插入“表 B”时执行触发器时可以影响“表 A”吗？

Question

好的，伙计们，这是我的问题。我正在尝试在 Oracle APEX 中创建一个触发器，当我为表“MAIN_APEX”提交一行时，它将在表“APEX_LOGS”上插入第一行，默认值在下面说明。这是我试图运行的触发器：

CREATE OR REPLACE TRIGGER  "DEFAULT_LOG_ENTRY" AFTER insert on "MAIN_APEX" for each row 
 begin
  :new.APEX_LOGS.LOG_ENTRY:= 'This log page was established. Actions and communcations are captured from this date and time onward.';
  :new.APEX_LOGS.LOG_DATE:= sysdate();
  :new.APEX_LOGS.CIRCULATION:= 'External';
  :new.APEX_LOGS.MAIN_PK_REF:= &MAIN_APEX.MAIN_PK;
  :new.APEX_LOGS.TECHWRITER:= &MAIN_APEX.TECHWRITER;
 end;

想法？这个话题似乎记录得非常糟糕。即使是“帮助”部分也无法深入了解正确的格式。谢谢各位。

Answer 1

您混淆了 Apex 和数据库的概念：触发器是数据库的一部分，而不是 Apex。

触发器的语法是：

CREATE OR REPLACE TRIGGER  "DEFAULT_LOG_ENTRY" AFTER insert on "MAIN_APEX"
for each row 
 begin
  insert into apex_logs (log_entry, log_date, circulation,
                         main_pk_ref, techwriter)
  values ('This log page was established. Actions and communcations are captured from this date and time onward.'
         , sysdate
         , 'External'
         , :new.main_pk
         , :new.TECHWRITER);
 end;