Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

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

MSSQLµÄ¶à²ãǶÌײéѯ

½ñÌìÔÚÁÄÌìϵͳÖÐÐèҪϵͳִÐÐÒ»¸ö¶à²ãǶÌײéѯ¡£
Ò»¿ªÊ¼Óï¾äÈçÏÂ×ܳöÏÖ´íÎó£ºÔ­À´ÊÇÔÚ]='123') ºóÎÒ¶à¼ÓÁËÒ»¸ö as tb1
¸ÄΪÈçϺó£¬ÕýÈ·ÔËÐС£
select * from ( select top(10)  * from ( select top(100)  * from (select  [chatcontent].[senderid],[chatcontent].[id] ,[chatcontent].[toid] ,[chatc ......

mssqlÀïsp_MSforeachtableºÍsp_MSforeachdbµÄÓ÷¨

´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 ......

²âÊÔMSSQLÖÐSQLÓï¾äÖ´Ðл¨·ÑµÄʱ¼ä

selectÓï¾äǰ¼Ó£º
declare @d datetime
set @d=getdate()
²¢ÔÚselectÓï¾äºó¼Ó£º
select [Óï¾äÖ´Ðл¨·Ñʱ¼ä(ºÁÃë)]=datediff(ms,@d,getdate())
ת×Ô£º¶¯Ì¬ÍøÖÆ×÷Ö¸ÄÏ www.knowsky.com
ÕâÊǼòÒ׵IJ鿴ִÐÐʱ¼äµÄ·½·¨¡£
===========================================£¨Ò»ÏÂÄÚÈÝת×Ô£º£Ã£Ó£Ä£Î£©
MSSQL ServerÖÐͨ¹ý²é ......

MSSQLÊý¾Ý¿â±¸·Ý

1
¡¢
MSSQL
Êý¾Ý¿âµÄ¶¨ÆÚ×Ô¶¯±¸·Ý¼Æ»®
 
ͨ¹ýÆóÒµ¹ÜÀíÆ÷
ÉèÖÃÊý¾Ý¿âµÄ¶¨ÆÚ×Ô¶¯±¸·Ý¼Æ»®¡£
1
¡¢´ò¿ªÆóÒµ¹Ü
ÀíÆ÷£¬Ë«»÷´ò¿ªÄãµÄ·þÎñÆ÷
2
¡¢È»ºóµãÉÏÃæ
²Ëµ¥ÖеŤ¾ß
-->
Ñ¡ÔñÊý¾Ý¿âά»¤¼Æ»®Æ÷
3
¡¢ÏÂÒ»²½Ñ¡ÔñÒª½øÐÐ×Ô¶¯±¸·ÝµÄÊý¾Ý
-->
ÏÂÒ»²½¸üÐÂÊý¾ÝÓÅ»¯ÐÅÏ¢£¬ÕâÀïÒ»°ã²»ÓÃ×öÑ¡Ôñ
-->
ÏÂÒ ......

MSSQLÌí¼Ó×Ö¶Î˵Ã÷

--×Ö¶ÎÌí¼Ó˵Ã÷
EXEC sp_addextendedproperty 'MS_Description', 'ÒªÌí¼ÓµÄ˵Ã÷', 'user', dbo, 'table', ±íÃû, 'column', ÁÐÃû
--ɾ³ý×Ö¶Î˵Ã÷
EXEC sp_dropextendedproperty 'MS_Description', 'user', dbo, 'table', ±íÃû, 'column', ×Ö¶ÎÃû
--²é¿´×Ö¶Î˵Ã÷
SELECT
    [Table Name] = i_s.TAB ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ