如何在sql查询中指定sql排序顺序

Question

我有以下SQL查询语句：

SELECT subject, sender_list, date, uid
FROM messages
WHERE folder_id = 3

请告诉我如何指定查询排序顺序？

谢谢。

Answer 1

实际上很容易。以下是按“主题”对查询进行排序的示例：

SELECT subject, sender_list, date, uid
  FROM messages
 WHERE folder_id = 3
 ORDER BY subject ASC

这将订购您的清单A-Z。如果您想订购Z-A清单，请使用：

ORDER BY subject DESC

Answer 2

使用“ORDER BY”

有关详细信息，请查看w3schools

Answer 3

这有效：

SELECT subject, sender_list, date, uid
  FROM messages
 WHERE folder_id = 3
 ORDER BY subject ASC

但是我不介意最后将“ asc”取消，因为默认情况下ASC为true。

https://www.w3schools.com/sql/sql_orderby.asp