Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies根据 value 首先选择条目，然后根据 MySQL 中其余记录的时间顺序排列
使用 ORDER BY 固定记录，然后显示
select * from yourTableName order by yourColumnName1=yourValue desc,yourColumnName2;
我们首先创建一个表 −
mysql> create table DemoTable1932 ( UserName varchar(20), ShippingDate date ); Query OK, 0 rows affected (0.00 sec)
使用插入命令在表中插入一些记录 −
mysql> insert into DemoTable1932 values('Chris','2018-10-12');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1932 values('David','2019-04-11');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1932 values('Mike','2016-12-04');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1932 values('Carol','2017-12-26');
Query OK, 1 row affected (0.00 sec)使用选择语句从表中显示所有记录 −
mysql> select * from DemoTable1932;
这将产生以下输出 −
+----------+--------------+ | UserName | ShippingDate | +----------+--------------+ | Chris | 2018-10-12 | | David | 2019-04-11 | | Mike | 2016-12-04 | | Carol | 2017-12-26 | +----------+--------------+ 4 rows in set (0.00 sec)
以下是根据 value 首先选择条目，然后根据日期订制条目顺序的查询 −
mysql> select * from DemoTable1932 order by UserName='David' desc,ShippingDate;
这将产生以下输出 −
+----------+--------------+ | UserName | ShippingDate | +----------+--------------+ | David | 2019-04-11 | | Mike | 2016-12-04 | | Carol | 2017-12-26 | | Chris | 2018-10-12 | +----------+--------------+ 4 rows in set (0.00 sec)
更新于： 2019 年 12 月 30 日
314 次浏览
广告