SQL·ÖÒ³²éѯ
thunder:
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)
6 ÔÂͳ¼Æ
7 ²¿ÃŲéѯ
8 ¹«Ë¾²éѯ
9 ¹¤³ÌÕбê
10 ¹¤³Ì×ܽá
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1. DDL ºÍ DML
/**//*** DDL ***/
begin
EXECUTE IMMEDIATE 'drop table temp_1';
EXECUTE IMMEDIATE 'create table temp_1(name varchar2(8))';
end;
/**//*** DML ***/
declare
v_1 varchar2(8);
& ......
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