SqlServerÖвéѯ10µ½20ÌõÖ®¼äµÄÊý¾Ý
²éѯnorthwindÊý¾Ý¿âÖÐordersÖеÄ10µ½20Ìõ¼Ç¼
select top 10 * from orders
where orderid > ( select max(orderid) from (select top 10 orderid from orders order by orderid) as t )
orders±íÖÐÒÑÓÐ×ÔÔö³¤µÄ±êʶÁÐorderid,
ÏȲé³ö±íÖÐǰʮÌõ¼Ç¼ÖеÄ×î´óorderid£¬
10ÌõÒÔºóµÄorderid¿Ï¶¨´óÓÚǰʮÌõµÄ×î´óid£¬ËùÒÔÔÙwhereÅжϼ´¿É¡£
ÁíÍ⣬Èç¹ûÒª²éѯµÄ±íûÓбêʶÁУ¬Ò²¿ÉÒÔʹÓÃÏÂÃæÕâÖÖ·½·¨£º
select top 20 identity(int ,1,1) as id * into #temp from table
select * from #temp where id>10
Ïà¹ØÎĵµ£º
ÕâÁ½ÌìÓиöÐèÇó£¬ÐèÒªÔÚÊý¾Ý¿âÖÐÅжÏ×Ö·û´®µÄ¸ñʽ£¬ÓÚÊÇ´ÓÍøÉÏËѼ¯ÁËһЩ×ÊÁÏ£¬ÕûÀíÁËһϡ£
ÏÂÃæÕâ¸öÊÇÒ»¸ö×Ô¶¨Ò庯Êý£¬Óû§¿ÉÒÔµ÷ÓÃÕâ¸öº¯ÊýÅжÏÖ¸¶¨µÄ×Ö·û´®ÊÇ·ñ·ûºÏÕýÔò±í´ïʽµÄ¹æÔò.
CREATE FUNCTION dbo.find_regular_expression
(
@source varchar(5000), --ÐèҪƥÅäµÄÔ´× ......
SELECT convert(char,ÈÕÆÚ×Ö¶Î,120) as date2 from table
mssqlĬÈÏÒÔϵͳʱ¼ä¸ñʽÊä³ö£¬Äã¿ÉÒÔµ÷ÕûϵͳµÄʱ¼ä¸ñʽÀ´½â¾ö
µ±È»ÊÇÔÚ³ÌÐòÀï½â¾ö±È½ÏÁé»î£¬convert(char,date,N)Êä³öµÄ¸÷ÖÖÑùʽ
N ÈÕÆÚÑùʽ
0 04& ......
ÔÚwindows 7 ÉÏΪ sqlserver 2008 ÆôÓÃÔ¶³Ì·ÃÎÊ£¬ÐèÒªÁ½¸öÖØµãµÄ²½Öè¡£
µÚÒ»²½£ºÆôÓÃsqlserver 2008Ô¶³Ì·ÃÎʵŦÄÜ¡£
´ò¿ªMicrosoft SQL Server 2008-ÅäÖù¤¾ß-SQL Server ÅäÖùÜÀíÆ÷
ÆôÓò¢¼¤»îTcp/IP
È»ºóÖØÆôsqlserver·þÎñ¡£ÕâÑùsqlserver 2008¾Í¿ÉÒÔ½øÐÐÔ¶³ÌÁ¬½ÓÁË¡£µ«ÊÇwin7 ·À»ðǽĬÈÏÊÇ×èÖ¹ÁËsqlsever ¿ª· ......
UnionĬÈÏÊDz»ÄÜÓÐorder by×Ó¾ä
Èç¹ûÐèÒªÅÅÐò£¬ÔòÖ»ÄÜÈçÏÂʵÏÖ
select * from (select top 100 PERCENT * from ±íÃû order by ×Ö¶ÎÃû) a
union all
select * from (select top 100 PERCENT * from ±íÃû ......