我该如何构建一个mysql查询来使用多个AND运算符？

Question

例如"SELECT * FROM date WHERE name = 'etc' AND lastname = 'etc' AND etc='etc'";

Answer 1

你完全像你刚刚说的那样做。

Answer 2

假设你正在谈论基于PHP的输入变量

$fields = array("name", "lastname", "etc") ; 
foreach($fields as $field) 
{ 
    $clause[]=$field."='".mysql_real_escape_string($_POST[$field])."'"; 
} 
$query = "SELECT * from `date` where " 
     .implode(" AND ", $clause); 

Answer 3

你会做这样的

eg "SELECT * FROM date WHERE name = 'etc' AND lastname = 'etc' AND etc='etc'";