我有以下一种叫做DM_USER_ROLE create or replace TRIGGER "DM_USER_ROLE_T1"
AFTER
insert on "DM_USER_ROLE"
for each row
DECLARE
v_cert_enrolment_id number;
v_user_role_id number;
begin
v_cert_en
我有这样的代码在触发器： CREATE TRIGGER customernametrig
AFTER UPDATE
ON customers
FOR EACH ROW
EXECUTE PROCEDURE trig();
和功能： CREATE OR REPLACE FUNCTION trig()
RETURNS trigger AS
$BOD
我写了一个触发器，它在两列中找到时会阻止重复记录。 我该如何将消息中的行引起重复。 我想在错误消息中显示那些错误行。 代码： CREATE TRIGGER [dbo].[BlockDuplicates]
ON [dbo].[table]
INSTEAD OF INSERT
AS
BEGIN
SET NOCOUNT ON;
IF NOT EXISTS (SELECT 1
CREATE TABLE JOINING_DETAILS(EMPNAME VARCHAR2(20),HIREDATE DATE);
CREATE OR REPLACE TRIGGER TERW
BEFORE INSERT ON JOINING_DETAILS
FOR EACH ROW
BEGIN
IF to_char(:NEW.HIREDATE,'HH24') BETWE
如果用户试图用未来日期替换当前日期，我想启动触发器，但在触发器中可能不允许使用子查询。我该如何解决这个问题？任何建议.... CREATE OR REPLACE TRIGGER check_join_date
BEFORE UPDATE OF join_date ON DOCTOR
FOR EACH ROW
WHEN (NEW.join_date > (SELE
DELIMITER $$
CREATE TRIGGER `krishna`.`tbl_venue_BEFORE_INSERT1` BEFORE INSERT ON `tbl_venue` FOR EACH ROW
Begin
if new.ground_name =.ground_name
then
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT =