[英]MySQL SELECT query with OR and Brackets not working
嗨我有一個MySQL Select查詢如下。
SELECT *
FROM request
WHERE user_id=$user_id
OR vendor=$user_id
OR (status='' AND services IN ( $service_arr ))
ORDER BY id DESC
但是這個查詢沒有按預期工作。 我的OR條件被忽略,只有當括號內的條件為真時,此查詢才會獲取數據。 這意味着它只獲取列名稱services
具有$service_arr
存在的項目之一的那些行。
謝謝
這個例子很可能對你有幫助
SELECT customer_id,first_name, last_name
FROM customers
WHERE (last_name = 'atiq')
OR (last_name = 'hamza' AND state = 'attock')
OR (last_name = 'usman' AND status = 'Active' AND state = 'islamabad');
我嘗試用上面的表定義創建一個SQL提琴,加載了示例數據並在SQL之上進行了測試。 它似乎工作正常。
http://sqlfiddle.com/#!9/282e9f/2
CREATE TABLE IF NOT EXISTS `request` (
`user_id` int(6) unsigned NOT NULL,
`vendor` int(3) unsigned NOT NULL,
`status` varchar(200) NOT NULL,
`services` varchar(200) NOT NULL
) DEFAULT CHARSET=utf8;
INSERT INTO `request` (`user_id`, `vendor`, `status`, `services`) VALUES
('1', '1', 'cut','fit'),
('2', '1', 'cut','fit'), ('3', '3', '','pick'),
('4', '5', 'next','sample');
SELECT *
FROM request
WHERE user_id=1
OR vendor=1
OR (status='' AND services IN ('pick'));
user_id vendor status services
1 1 cut fit
2 1 cut fit
3 3 pick
我發現你的SQL沒有任何問題,你能與數據共享樣本嗎?
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