在MySQL中选择带有正则表达式的查询
让我们首先创建一个表-
mysql> create table DemoTable1573 -> ( -> StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> StudentCode varchar(20) -> );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable1573(StudentCode) values('STU_774');
mysql> insert into DemoTable1573(StudentCode) values('909_Sam');
mysql> insert into DemoTable1573(StudentCode) values('3_Carol_455');
mysql> insert into DemoTable1573(StudentCode) values('David_903');使用select语句显示表中的所有记录-
mysql> select * from DemoTable1573;
这将产生以下输出-
+-----------+-------------+ | StudentId | StudentCode | +-----------+-------------+ | 1 | STU_774 | | 2 | 909_Sam | | 3 | 3_Carol_455 | | 4 | David_903 | +-----------+-------------+ 4 rows in set (0.00 sec)
这是使用正则表达式实现选择查询的查询-
mysql> select * from DemoTable1573 where StudentCode regexp '\land[0-9]';
这将产生以下输出-
+-----------+-------------+ | StudentId | StudentCode | +-----------+-------------+ | 2 | 909_Sam | | 3 | 3_Carol_455 | +-----------+-------------+ 2 rows in set (0.14 sec)