PHP：准备好的声明中的order by子句

Question

我想在准备好的声明中使用orderby子句。

以下是我的查询

$stmt = $connect->prepare("SELECT  send_stamp,id,receiverid, message, time, status,sentby FROM `chat` WHERE cust_id=?");
$stmt->bind_param('i', $cust_id);
$result=$stmt->execute();

现在我在哪里通过（asc）在此查询中添加顺序，以按日期或ID对其进行排序。

请帮忙

Answer 1

你这样做：

$stmt = $connect->prepare("SELECT  send_stamp,id,receiverid, message, time, status,sentby FROM `chat` WHERE cust_id = ? ORDER BY id ASC");
$stmt->bind_param('i', $cust_id);
$result=$stmt->execute();

Answer 2

与普通SQL查询一样：在查询结束时：

$stmt = $connect->prepare(
    "SELECT
       send_stamp,id,receiverid, message, time, status, sentby
     FROM `chat`
     WHERE cust_id=?
     ORDER BY id DESC"
);
$stmt->bind_param('i', $cust_id);
$result=$stmt->execute();

Answer 3

您只需要在查询结束时添加，以下是我添加升序子句的示例。

   $stmt = $connect->prepare(
        "SELECT
           send_stamp,id,receiverid, message, time, status, sentby
         FROM `chat`
         WHERE cust_id=?
         ORDER BY id ASC"
    );
    $stmt->bind_param('i', $cust_id);
    $result=$stmt->execute();

上面的查询将以id的升序返回记录，因为我们在id上使用了order子句。

Answer 4

通常在mysql的顺序中使用在语句的末尾。喜欢

SELECT  send_stamp,id,receiverid, message, time, status,sentby FROM `chat` WHERE cust_id=? order by id

你可以通过id，name或任何你想要的东西来订购，只需写下该字段的名称即可。

Answer 5

$stmt = $connect->prepare("SELECT  send_stamp,id,receiverid, message, time, status,sentby FROM `chat` WHERE cust_id=? ORDER  BY date ASC");