Question

我的sql查询无效。我需要filter data Location，但不起作用。为什么这不起作用

$sql = "SELECT count(*) FROM entries WHERE location 
IN ('chennai,Bangalore') AND en_id = 'test' AND date(datetime) 
BETWEEN '2015-10-02' AND '2015-10-31'";

Answer 1

您需要更新查询

IN ('chennai,Bangalore')

进入

IN ('chennai','Bangalore')

Answer 2

试试这个表，查询和分析师希望能帮到你表格如下

CREATE TABLE IF NOT EXISTS `entries` (
 `id` int(15) NOT NULL,
 `location` varchar(255) NOT NULL,
 `en_id` varchar(25) NOT NULL ,
 `date` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP
 ) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=latin1;

--
-- Dumping data for table `entries`
--

 INSERT INTO `entries` (`id`, `location`, `en_id`, `date`) VALUES
 (1, 'chennai', 'test', '2015-10-31 12:53:38'),
 (2, 'Bangalore', 'test', '2015-10-31 12:53:38'),
 (3, 'chennai', 'test', '2015-10-13 12:53:38'),
 (4, 'chennai', 'test', '2015-10-05 12:53:38'),
 (5, 'chennai', 'test1', '2015-10-03 00:00:00'),
 (6, 'Bangalore', 'test', '2015-10-04 12:53:38'),
 (7, 'Bangalore', 'test1', '2015-10-03 00:00:00'),
 (8, 'chennai', 'test1', '2015-10-30 00:00:00'),
 (9, 'Bangalore', 'test1', '2015-10-30 00:00:00');

这是获得所需结果的查询

 SELECT count(*) FROM entries WHERE location 
 IN ('chennai','Bangalore') AND en_id = 'test1' AND date(NOW()) 
 BETWEEN '2015-10-02' AND '2015-10-31'

PHP mysql多个Select Query无法正常工作

2 个答案: