在MySQL我試圖像這樣定義一個觸發器: DELIMITER $$
CREATE TRIGGER vipInvite
AFTER INSERT ON meetings
FOR EACH ROW
BEGIN
IF(NOT EXISTS (SELECT * FROM participants
WHERE meetid = NEW.meetid AND pid ='vip'))
我正在使用MySQL v5.0.45並試圖刪除表中的第n行,而不考慮其ID號。我設置了PHP中的原型其納入地方設置我的web開發項目之前,在我的數據庫如下: CREATE TABLE prototype_1 (id INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(id), name varchar(30));
INSERT INTO prototype_1 (
我正在phpMyAdmin中工作,我是新創建MySQL 5.0.45觸發器的。我試圖創建一個觸發器,當值超出範圍時,通過拋出一個錯誤來幫助我驗證數據。 這只是正常: create trigger t1
before insert
on hvi
for each row
begin
declare dummy int;
if new.`Moist (dry%)`
SELECT * FROM `ip_log`
WHERE `email` in (select distinct ip from ip_log
where email='tuyji' and date(addin)='2012-09-15'
order by addin asc limit 5)
where ip='171.98.8.148'
我有這個疑問: SELECT count(cp.CxID) as intSmokers
FROM CustPrimarySmoking cp
JOIN Customer c ON cp.CxID = c.CustomerID
WHERE
cp.CxID IN (SELECT CxID FROM CustPrimarySmoking WHERE CxID = cp.CxID LIMIT 1,