要按字母顺序订购,请使用ORDER BY SUBSTRING()
。让我们首先创建一个表-
mysql> create table DemoTable ( Id varchar(100) );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable values('456 John Smith'); mysql> insert into DemoTable values('897 Adam Smith'); mysql> insert into DemoTable values('1009 Bob Smith');
使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
这将产生以下输出-
+----------------+ | Id | +----------------+ | 456 John Smith | | 897 Adam Smith | | 1009 Bob Smith | +----------------+ 3 rows in set (0.00 sec)
以下是对ORDER BY字母的查询-
mysql> select *from DemoTable order by SUBSTRING(Id,LOCATE(' ', Id));
这将产生以下输出-
+----------------+ | Id | +----------------+ | 897 Adam Smith | | 1009 Bob Smith | | 456 John Smith | +----------------+ 3 rows in set (0.05 sec)