mssql row_number() partition ʹÓ÷½·¨Àí½â
Sql2005ÖÐʹÓÃow_number() partition½øÐзÖ×éʵÑ飬
SQL£º
select * from stu
select id,row_number() over (partition by snm order by id) from stu
½á¹û£º
id snm
----------------
111 111V
111 111W
222 222N
333 3123
444 3123
555 3123
666 3232
777 3232
--·Ö×éºóµÄ½á¹û
id
------------
111 1
111 1
222 1
333 1
444 2
555 3
666 1
777 2
¿ÉÒÔ×¢Òâµ½·Ö×éºÍÌØÊâ±ê¼ÇµÄ½á¹ûÈçÉÏÃæËùʾ
Ïà¹ØÎĵµ£º
---xml²ð·ÖÒÔ²»¶¨¿Õ¸ñΪ·Ö¸î·ûºÅµÄ×Ö·û´®
--²âÊÔÊý¾Ý
if object_id('[tb]') is not null drop table [tb]
create table [tb]([a] varchar(200))
go
insert [tb]
select 'aaaa bbbb cccc dddd'
insert [tb]
select 'eeeeee ffff hhhh   ......
sql´æ´¢¹ý³Ì½Ì³Ì
[ËѼ¯ÕûÀí]sql´æ´¢¹ý³ÌÍêÈ«½Ì³Ì
Ŀ¼
1.sql´æ´¢¹ý³Ì¸ÅÊö
2.SQL´æ´¢¹ý³Ì´´½¨
3.sql´æ´¢¹ý³Ì¼°Ó¦ÓÃ
4.¸÷ÖÖ´æ´¢¹ý³ÌʹÓÃÖ¸ÄÏ
5.ASPÖд洢¹ý³Ìµ÷ÓõÄÁ½ÖÖ·½Ê½¼°±È½Ï
6.SQL´æ´¢¹ý³ÌÔÚ.NETÊý¾Ý¿âÖеÄÓ¦ÓÃ
7.ʹÓÃSQL´æ´¢¹ý³ÌÒªÌØ±ð×¢ÒâµÄÎÊÌâ
1.sql´æ´¢¹ý³Ì¸ÅÊö
ÔÚ´óÐÍÊý¾Ý¿âϵͳÖУ¬´æ´ ......
´Ómssql6.5¿ªÊ¼£¬Î¢ÈíÌṩÁËÁ½¸ö²»¹«¿ª£¬·Ç³£ÓÐÓõÄϵͳ´æ´¢¹ý³Ìsp_MSforeachtableºÍsp_MSforeachdb£¬ÓÃÓÚ±éÀúij¸öÊý¾Ý¿âµÄÿ¸ö±íºÍ±éÀúDBMS¹ÜÀíϵÄÿ¸öÊý¾Ý¿â¡£
ÎÒÃÇÔÚmasterÊý¾Ý¿âÀïÖ´ÐÐÏÂÃæµÄÓï¾ä¿ÉÒÔ¿´µ½Á½¸öprocÏêϸµÄ´úÂë
use master
exec sp_helptext sp_MSforeachtable
exec sp_helptext sp_Msforeachdb
sp_M ......
@echo off
:dosmenu
REM Ñ¡Ôñ²Ëµ¥
echo Windows ·þÎñÆô¶¯»ò¹Ø±Õ By hope 2008Äê2ÔÂ7ÈÕ
echo.
echo [1]Æô¶¯Sql Server2005 [2]¹Ø±ÕSql Server2005
echo [3]Æô¶¯Oracle9i [4]¹Ø±ÕOracle9i
echo.
echo ......
²éѯÓï¾äÖ»ÒªÕâÑùд,¾Í¿ÉÒÔËæ»úÈ¡³ö¼Ç¼ÁË
SQL="Select top 6 * from Dv_bbs1 where isbest = 1 and layer = 1 order by newID() desc"
ÔÚACCESSÀï
SELECT top 15 id from tablename order by rnd(id)
SQL Server£º
Select TOP N * from TABLE Order By NewID()
Access£º
Select TOP N * from TABLE Order By Rnd(ID ......