Question

我试图在更新后在hsql中实现触发器我有一个称为组件表的表，并且在该表中进行更新时，我想使用插入触发器之后将其记录到另一个表中，为此我正在

CREATE TABLE IF NOT EXISTS "component"(
   "id" INTEGER IDENTITY,
   "name" VARCHAR(100),
   "configuration" LONGVARCHAR,
   "owner_id" INTEGER   );

CREATE TABLE IF NOT EXISTS "component_audit"(
   "id" INTEGER IDENTITY,
   "component_id" INTEGER ,
   "action" VARCHAR(20),
   "activity_time" BIGINT,
   "user_id" INTEGER,
   FOREIGN KEY ("component_id") REFERENCES "component"("id") ON UPDATE RESTRICT ON DELETE CASCADE
);

    CREATE TRIGGER trig AFTER INSERT ON "component"
       REFERENCING NEW ROW AS newrow
       FOR EACH ROW
       INSERT INTO "component_audit" ("id","component_id","action","activity_time","user_id")
       VALUES (DEFAULT, 1, newrow.id, 123, 1);

在运行HSQL时引发错误

由以下原因引起：org.hsqldb.HsqlException：用户缺少特权或对象找不到：NEWROW.ID

这是因为我的id列在“ id”中，因为我需要使用小写字母（DEFAULT HSQLDB为大写）如何通过变量替换？

Answer 1

只需使用与CREATE TABLE语句相同的命名即可。

CREATE TRIGGER trig AFTER INSERT ON "component"
   REFERENCING NEW ROW AS newrow
   FOR EACH ROW
   INSERT INTO "component_audit" ("id","component_id","action","activity_time","user_id")
   VALUES (DEFAULT, 1, newrow."id", 123, 1);

HSQL触发器：用户缺少特权或找不到对象：NEWROW.ID

1 个答案: