Question

插入前的DB2触发器无法删除表中的行

CREATE TRIGGER WDW.user_name_search_del
before INSERT ON WDW.user_name_search_b
REFERENCING NEW AS new
FOR EACH ROW MODE DB2SQL
BEGIN ATOMIC
Delete from wdw.user_name_search_b
where user_name = new.user_name ;--

它抛出错误

在“名称= new.user_name”之后发现意外的标记“ END-OF-STATEMENT”。预期的令牌可能包括：“” .. SQLCODE = -104，SQLSTATE = 42601，DRIVER = 4.9.78 SQL代码：-104，SQL状态：42601

Answer 1

要修复的两件事：

将“ BEGIN ATOMIC”更改为“ BEGIN”。 “ BEGIN ATOMIC”块中不支持DELETE
在“;-”之前添加“; END”以结束“ BEGIN”块。

声明应为：

CREATE TRIGGER WDW.user_name_search_del 
  before INSERT ON WDW.user_name_search_b 
  REFERENCING NEW AS new 
  FOR EACH ROW 
  MODE DB2SQL 
BEGIN  
  Delete 
  from wdw.user_name_search_b 
  where user_name = new.user_name; 
END;

插入之前的DB2触发器

1 个答案: