从 MySQL 数据库按 DESC 顺序显示记录同时跳过一些记录?
让我们首先创建一个表 -
mysql> create table DemoTable ( Id int, Name varchar(100) ); Query OK, 0 rows affected (0.94 sec)
使用 insert 命令在表中插入一些记录 -
mysql> insert into DemoTable values(10,'Chris'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values(1,'David'); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values(4,'Bob'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(6,'Sam'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(7,'Mike'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values(5,'Carol'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values(9,'John'); Query OK, 1 row affected (0.19 sec)
使用 select 语句从表中显示所有记录 -
mysql> select *from DemoTable;
这将产生以下输出 -
+------+-------+ | Id | Name | +------+-------+ | 10 | Chris | | 1 | David | | 4 | Bob | | 6 | Sam | | 7 | Mike | | 5 | Carol | | 9 | John | +------+-------+ 7 rows in set (0.00 sec)
以下是在跳过某些记录的情况下以 DESC 顺序显示记录的查询。在此处,我们在跳过 3 条记录的情况下显示了 4 条记录 -
mysql> select Name from DemoTable order by Id DESC limit 3,4;
这将产生以下输出 -
+-------+ | Name | +-------+ | Sam | | Carol | | Bob | | David | +-------+ 4 rows in set (0.00 sec)
广告