这是我想要在“DELETE”语句中执行的操作:
delete from table1
where (username = "Jonathan" or username = "Amy")
and (field2 = "Jonathan" or field3 = "Jonathan" or field4 = "Jonathan" or field2 = "Amy" or field 3 = "Amy" or field4 = "Amy")
肯定有办法做到这一点吗?
编辑: 这是我正在使用的实际代码。我一定做错了什么:
$sql = "DELETE FROM friend_requests
WHERE username in ('jesusfreak', " . $_SESSION['user']['username'] . ")
AND (requests in ('jesusfreak', " . $_SESSION['user']['username'] . ")
OR common_friends in ('jesusfreak', " . $_SESSION['user']['username'] . ")
OR suggest_favorited in ('jesusfreak', " . $_SESSION['user']['username'] . ")
OR suggest_prayed ('jesusfreak', " . $_SESSION['user']['username'] . ")
OR suggest_viewed in ('jesusfreak', " . $_SESSION['user']['username'] . "))";
$conn = new mysqli(DBHOST, DBUSER, DBPASS, DBNAME);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$conn->query($sql);
$conn->close();
最佳答案
试试这个:
delete from table1
where username in ('Jonathan','Amy')
and (field2 in ('Jonathan','Amy')
or
field3 in ('Jonathan','Amy')
or
field4 in ('Jonathan','Amy'));
关于mysql - 在 mysql where 子句中使用多个括号,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30312357/