在MySQL中两行之间获取数据？
要在两行之间获取数据，请使用LIMIT概念。让我们首先创建一个表-
mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Name varchar(10) );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable(Name) values('Larry');
mysql> insert into DemoTable(Name) values('Robert');
mysql> insert into DemoTable(Name) values('Chris');
mysql> insert into DemoTable(Name) values('David');
mysql> insert into DemoTable(Name) values('Bob');
mysql> insert into DemoTable(Name) values('Sam');
mysql> insert into DemoTable(Name) values('Mike');
mysql> insert into DemoTable(Name) values('Carol');
mysql> insert into DemoTable(Name) values('John');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 | Name | +----+--------+ | 1 | Larry | | 2 | Robert | | 3 | Chris | | 4 | David | | 5 | Bob | | 6 | Sam | | 7 | Mike | | 8 | Carol | | 9 | John | +----+--------+ 9 rows in set (0.00 sec)
以下是在两行之间获取数据的查询-
mysql> select *from DemoTable limit 2,3;
这将产生以下输出-
+----+-------+ | Id | Name | +----+-------+ | 3 | Chris | | 4 | David | | 5 | Bob | +----+-------+ 3 rows in set (0.00 sec)