DB2 FOR 游标内部触发器错误

Question

我正在尝试遍历 table 中的 trip_numbers 列表。每当我尝试使用 FOR 循环时，我都会收到以下错误：

错误：在 "cur1" 之后发现意外标记 "CURSOR"。预期标记可能包括："JOIN "。 SQLSTATE-42601

CREATE TRIGGER SCHEMA.UPDATE_OP_CODE_2 

AFTER UPDATE OF USER1 ON TLORDER 

REFERENCING NEW AS N 

FOR EACH ROW 

MODE DB2SQL 

BEGIN ATOMIC 

DECLARE mTRIP_NUMBER INTEGER; --

FOR v AS cur1 CURSOR FOR (SELECT TRIP_NUMBER FROM ITRIPTLO WHERE 
DETAIL_LINE_ID  =  N.DETAIL_LINE_ID)--

DO
SET mTRIP_NUMBER  = cur1.TRIP_NUMBER;

IF (mTRIP_NUMBER IS NOT NULL AND mTRIP_NUMBER != 0) THEN 

    CALL DF_SAVELEGINTERSECTION(mTRIP_NUMBER, 'True'); --

    CALL OPTIMIZE_CARRIER(mTRIP_NUMBER); --

    CALL DF_CALCULATETRIPTOTALS(mTRIP_NUMBER, 'True'); --

END IF; --
END FOR;
END

我不能在触发器中使用 FOR Loop/cursor 吗？

Answer 1

删除 "cur1 CURSOR FOR"。 "inlined compound" 触发器不支持此功能。

  CREATE TRIGGER SCHEMA.UPDATE_OP_CODE_2 

  AFTER UPDATE OF USER1 ON TLORDER 

  REFERENCING NEW AS N 

  FOR EACH ROW 

  MODE DB2SQL 

  BEGIN ATOMIC 

    DECLARE mTRIP_NUMBER INTEGER; --

    FOR v AS (SELECT TRIP_NUMBER FROM ITRIPTLO WHERE DETAIL_LINE_ID  =  N.DETAIL_LINE_ID)--

    DO

      SET mTRIP_NUMBER  = TRIP_NUMBER;--

      IF (mTRIP_NUMBER IS NOT NULL AND mTRIP_NUMBER != 0) THEN 

        CALL DF_SAVELEGINTERSECTION(mTRIP_NUMBER, 'True'); --

        CALL OPTIMIZE_CARRIER(mTRIP_NUMBER); --

        CALL DF_CALCULATETRIPTOTALS(mTRIP_NUMBER, 'True'); --

      END IF; --

    END FOR;--

  END

DB2 FOR 游标内部触发器错误

DB2 FOR Cursor Inside Trigger Error

database

db2

cursor