Question

我们有一个简单的触发器可以阻止插入：

db2 "CREATE TRIGGER noins_isrt
NO CASCADE BEFORE UPDATE ON userid.customer
REFERENCING NEW AS n
FOR EACH ROW MODE DB2SQL
SIGNAL SQLSTATE '99999' ('Updates not allowed')
"

有没有办法记录更新内容？例如，他们正在更新customer.name或电话号码？

Answer 1

我不知道DB2触发器的确切语法，但这是典型的语法：

CREATE TRIGGER noins_isrt
NO CASCADE BEFORE UPDATE ON userid.customer
REFERENCING NEW AS n
FOR EACH ROW MODE DB2SQL
begin
    insert into MyAuditTable(value)
        select new.value;
    SIGNAL SQLSTATE '99999' ('Updates not allowed')
end;

Db2在触发和写入日志之前

1 个答案: