使用觸發器（包含XML）將DB2行復制到歷史記錄表中

Question

我想將包含XML列的行復制到歷史記錄表。似乎不可能這樣做？！

我曾嘗試：

CREATE TRIGGER MARTIN."Pages_I" BEFORE UPDATE OF "tstamp" ON MARTIN."Pages" REFERENCING OLD AS old_row FOR EACH ROW MODE DB2SQL SECURED 
INSERT INTO "MARTIN"."HistoryPages" VALUES (old_row."pageId", (SELECT "pageXML" FROM "MARTIN"."Pages" WHERE "pageId" = old_row."pageId" LIMIT 1), old_row."tstamp"); 

=>不允許由於插入BEFORE觸發

CREATE TRIGGER MARTIN."Pages_I" AFTER UPDATE OF "tstamp" ON MARTIN."Pages" REFERENCING OLD AS old_row FOR EACH ROW MODE DB2SQL SECURED 
INSERT INTO "MARTIN"."HistoryPages" VALUES (old_row."pageId", old_row."pageXML", old_row."tstamp"); 

=>不能引用old_row 「pageXML」，因爲它是一個XML列

。

有沒有解決這個困境的方法？

Answer 1

似乎沒有解決方案，這只是數據庫系統的限制。