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1.MYSQLʵÏÖ
mysql> select * from user;
+----+----------+----------+-----------------+
| ID | username | password | email           |
+----+----------+----------+-----------------+
|  1 | admin    | admin    | abc@yahoo.cn    |
|  2 | thomas   | 159753   | thomas@yahoo.cn |
|  3 | thomas1  | 159753   | thomas@yahoo.cn |
|  4 | huhu     | 159753   | hu@yahoo.cn     |
|  5 | fdg      | dfg      | fdg             |
|  6 | sdf      | sd       | sdf@yahoo.cn    |
|  7 | d        | d        | d@d.cn          |
+----+----------+----------+-----------------+
7 rows in set (0.00 sec)
mysql> select * from user limit 3,2;
+----+----------+----------+-------------+
| ID | username | password | email       |
+----+----------+----------+-------------+
|  4 | huhu     | 159753   | hu@yahoo.cn |
|  5 | fdg      | dfg      | fdg         |
+----+----------+----------+-------------+
2 rows in set (0.00 sec)
mysql>
===================================================
2.MSSQLServerʵÏÖ
select top 5 function_id,function_name from d_function
where function_id not in (select top 5 function_id from d_function)
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ALTER DATABASE MyDB SET EMERGENCY
GO
sp_dboption 'MyDB', 'single user', 'true'
GO
DBCC CHECKDB('MyDB','REPAIR_ALLOW_DATA_LOSS')
GO
ALTER DATABASE MyDB SET ONLINE
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´óÊý¾ÝÁ¿Ï¿ìËÙ»ñÈ¡ SQL Server Êý¾Ý¿â±í¼Ç¼ÊýµÄ·½·¨

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