另一个 04079：无效的触发器规范

Posted 2023-03-28

【中文标题】另一个 04079：无效的触发器规范

【英文标题】：another 04079: invalid trigger specification

【发布时间】：2014-04-22 14:43:48

【问题描述】：

触发器创建的语法对我来说看起来是正确的，但我很难找到引发此错误的原因。 此触发器的目的是在源表添加条目后填充两个不同的表。任务表添加了行，然后 CADP_IMPORT 和 CADP_EXPORT 表仅获取从任务表中的相应列填充的非空列。 RAVE 表也是如此。 varcdesc 变量位于两个连接之外的表上。这就是定义要复制到哪组外部表的内容。

CREATE OR REPLACE TRIGGER UPDATEEXTERNAL
  AFTER UPDATE
  ON TASKS
  REFERENCE new as new old as old
  FOR EACH ROW
WHEN (:new.status like 'CODE VERBATIM #%')

DECLARE
  vareid    varchar2(50);
  varcdesc  varchar2(50);

BEGIN 
  vareid := externalid;
  select c.description into varcdesc from configurations c, jobs j, tasks t
    where t.jobid = j.id
    and   j.configurationid = c.id;
  IF varcdesc = 'CADP AE and MH Convention' 
      OR varcdesc = 'CADP CM Convention' THEN
    INSERT ALL
      INTO IATINTEGRATION.CADP_IMPORT 
        (EXTERNALID,TERM,FROMSYS,PROT,TYPE,DATASET,VARNAME,BATCH,PNO) 
      VALUES
        (vareid,t.verbatim,t.REF1,t.REF2,t.REF3,t.REF4,t.REF5,t.REF6,t.REF7)

    INTO IATEINTEGRATION.CADP_EXPORT 
        (EXTERNALID,VERBATIM,FROMSYS,PROT,TYPE,DATASET,VARNAME,BATCH,PNO)
      VALUES
        (vareid,t.verbatim,t.REF1,t.REF2,t.REF3,t.REF4,t.REF5,t.REF6,t.REF7);

    ELSE IF varcdesc = 'RAVE AE and MH Convention' 
    OR varcdesc = 'RAVE CM Convention' THEN
    INSERT ALL
      INTO IATINTEGRATION.RAVE_IMPORT 
        (EXTERNALID,VERBATIM_TERM,STUDY_ID) 
      VALUES
        (vareid,t.verbatim,t.REF1)
      INTO IATINTEGRATION.RAVE_EXPORT 
        (EXTERNALID,VERBATIM_TERM,STUDY_ID) 
      VALUES
        (vareid,t.verbatim,t.REF1);
     END IF;
     END;

【问题讨论】：

为什么在插入中引用t. 列？这仅对INSERT ... SELECT 有效，对INSERT ... VALUES 无效。

【参考方案1】：

试试这个：

CREATE OR REPLACE TRIGGER UPDATEEXTERNAL
  AFTER UPDATE
  ON TASKS
  REFERENCE new as t old as old
  FOR EACH ROW
WHEN (:new.status like 'CODE VERBATIM #%')

DECLARE
  vareid    varchar2(50);
  varcdesc  varchar2(50);

BEGIN 
  vareid := externalid;
  select c.description into varcdesc from configurations c, jobs j, tasks tsk
    where tsk.jobid = j.id
    and   j.configurationid = c.id;
  IF varcdesc = 'CADP AE and MH Convention' 
      OR varcdesc = 'CADP CM Convention' THEN
    INSERT ALL
      INTO IATINTEGRATION.CADP_IMPORT 
        (EXTERNALID,TERM,FROMSYS,PROT,TYPE,DATASET,VARNAME,BATCH,PNO) 
      VALUES
        (vareid,t.verbatim,t.REF1,t.REF2,t.REF3,t.REF4,t.REF5,t.REF6,t.REF7)

    INTO IATEINTEGRATION.CADP_EXPORT 
        (EXTERNALID,VERBATIM,FROMSYS,PROT,TYPE,DATASET,VARNAME,BATCH,PNO)
      VALUES
        (vareid,t.verbatim,t.REF1,t.REF2,t.REF3,t.REF4,t.REF5,t.REF6,t.REF7);

    ELSE IF varcdesc = 'RAVE AE and MH Convention' 
    OR varcdesc = 'RAVE CM Convention' THEN
    INSERT ALL
      INTO IATINTEGRATION.RAVE_IMPORT 
        (EXTERNALID,VERBATIM_TERM,STUDY_ID) 
      VALUES
        (vareid,t.verbatim,t.REF1)
      INTO IATINTEGRATION.RAVE_EXPORT 
        (EXTERNALID,VERBATIM_TERM,STUDY_ID) 
      VALUES
        (vareid,t.verbatim,t.REF1);
     END IF;
     END;