语法
SELECT
列名 FROM
表名 ORDER BY
列名 ASC
|DESC
实例
根据单个字段排序
ORDER BY date DESC
:仅以 date
降序
SELECT id, date, time, user, name FROM hexingxing WHERE DATE_SUB(CURDATE(), INTERVAL 15 DAY) <= date ORDER BY date DESC
根据两个字段排序,同时为降序
ORDER BY date DESC,time DESC
:先以 date
降序,再以 time
降序
SELECT id, date, time, user, name FROM hexingxing WHERE DATE_SUB(CURDATE(), INTERVAL 15 DAY) <= date ORDER BY date DESC, time DESC
根据两个字段排序,升序和降序
ORDER BY date DESC,time ASC
:先以 date
降序,再以 time
升序
SELECT id, date, time, user, name FROM hexingxing WHERE DATE_SUB(CURDATE(), INTERVAL 15 DAY) <= date ORDER BY date DESC, time ASC
根据两个字段排序,升序和降序
ORDER BY date,time DESC
:先以 date
升序,再以 time
降序
ORDER BY date ASC,time DESC
:先以 date
升序,再以 time
降序
注:以上两条语句作用相同
date,time DESC
:date
升序,time
降序,因为默认升序,所以可以不写 ASC
SELECT id, date, time, user, name FROM hexingxing WHERE DATE_SUB(CURDATE(), INTERVAL 15 DAY) <= date ORDER BY date, time DESC
根据中文汉字字段排序,一般为升序
ORDER BY CONVERT(name USING gbk) ASC
UTF8
默认校对集是 utf8_general_ci
, 不支持中文字符识别,根据需求可以对 MySQL
强制转换 GBK
中文字符后进行排序。
SELECT id, date, time, user, name FROM hexingxing WHERE DATE_SUB(CURDATE(), INTERVAL 15 DAY) <= date ORDER BY CONVERT(name USING gbk) ASC
根据以上可以类推根据三个字段及更多字段来进行升序或降序显示。
根据指定日期查询符合条件范围的数据
WHERE DATE_SUB(CURDATE(), INTERVAL 15 DAY) <= date
SELECT id, date, time, user, name FROM hexingxing WHERE DATE_SUB(CURDATE(), INTERVAL 15 DAY) <= date
规格
ASC:指定列按升序排列
DESC:指定列按降序排列
默认升序,ASC/DESC 只对后方的第一个列名有效,其他不受影响,仍是默认的升序。
更多用法
按多个列的值排序
ORDER BY 列 1, 列 2
按指定的规则排序
ORDER BY charindex(列值,'值 1, 值 2, 值 3')
注意事项
ORDER BY 必须在 WHERE 条件之后使用
0 条评论