ÔõÑùʹÓÃSQLÓï¾ä¸üÐÂÐÐÀÛ¼ÆÁÐÖµ
±í:TABLEA
¿Í»§±àºÅ Ó¦ÊÕ½ð¶î ÊÕ¿î½ð¶î
1001 100 80
1001 200 180
1001 300 280
1001 400 380
.. .. ..
ÐÐÊý²»È·¶¨,½ð¶îÒ²²»È·¶¨
ÈçºÎ²éѯ²ÅÄܵõ½ÕâÑùµÄ½á¹¹:
¿Í»§±àºÅ Ó¦ÊÕ½ð¶î ÊÕ¿î½ð¶î Ê£Óà½ð¶î
1001 100 80 20
1001 200 180 40
1001 300 280 60
1001 400 380 80
.. .. .. ..
ÈçºÎ²ÅÄÜʵÏÖ Ê£Óà½ð¶î ÕâÑùµÄ½á¹û
ʹÓÃÒ»¸ö¸üÐÂÓï¾ä¼´¿É½â¾ö¡£´úÂëÈçÏ£º
declare @a int
set @a = 0
update TABLE1 set
@a = @a + Ó¦ÊÕ½ð¶î - ÊÕ¿î½ð¶î,
Ê£Óà½ð¶î = @a
Ïà¹ØÎĵµ£º
General Overview
FeatureSQL Server 2008 (RC0)MySQL 5.1/6PostgreSQL 8.3/PostGIS 1.3/1.4
OS
Windows XP, Windows Vista, Windows 2003, Windows 2008
Windows XP, Windows Vista, (haven't tested on 2008), Linux, Unix, Mac
Windows 2000+ (including Vista and 2003, haven't tested on 2008), Linux, Unix, Ma ......
sql±àÒëÓëÖØ±àÒë
1.sp_recompile
ʹ´æ´¢¹ý³ÌºÍ´¥·¢Æ÷ÔÚÏ´ÎÔËÐÐÊ±ÖØÐ±àÒë¡£
2.sp_refreshview
Èç¹ûÊÓͼËùÒÀÀµµÄ»ù´¡¶ÔÏó·¢Éú¸ü¸Ä(Èç:±íÔö¼ÓÁËÒ»¸ö×Ö¶Î)£¬ÔòÊÓͼ²»»á×Ô¶¯¸üУ¬ÕâʱÐèÒªµ÷Óøô洢¹ý³ÌÀ´¶ÔÊÓͼ½øÐÐˢС£ÓÐÈË˵£¬ÖØÐ´ò¿ªÒ»ÏÂÊÓͼ¾Í¿ÉÒÔ¸üÐÂÊÓͼ£¬µ«ÎÒÊÔÁËûÓгɹ¦¡£
Àý1£ºË¢ÐÂÖ¸¶¨Ãû³ÆµÄÊÓͼ
......
ÅäÖÃʹÓà SQL ServerÌṩ³ÌÐò
<configuration>
<system.web> <-- ¸ü¸ÄÌṩ³ÌÐòÅäÖ㺠-->
<membership defaultProvider="AspNetSqlProvider" />
</system.web>
<membership> <--ÅäÖÃÌṩ³ÌÐò -->
<prov ......
Ò»¡¢ÕâÊÇÕâ¸öϵÁеÄ×îºóÒ»½ÚÁË£¬×Ô¶¨Ò帴ÔÓÊý¾ÝÀàÐÍĿǰֻÄÜͨ¹ýCLRÀ´ÊµÏÖ¡£ÎªÁËÔÚ SQL Server ÖÐÔËÐУ¬ÄúµÄ UDT ±ØÐëʵÏÖ UDT ¶¨ÒåÖеÄÒÔÏÂÒªÇó£º
1.¸Ã UDT ±ØÐëÖ¸¶¨ Microsoft.SqlServer.Server.SqlUserDefinedTypeAttribute¡£System.SerializableAttribute ¿ÉÑ¡Ó㬵«½¨ÒéʹÓá£
2.UDT ±ØÐëͨ¹ý´´½¨¹«¹²µÄ static£¨M ......
½ñÌìÔÚһ̨Ðé»úÉϰ²×° sql server 2005£¬¾ÓÈ»±¨1´íÁË£¨ÎÞÓïÁË£¬×°Õâ¸ö¶«Î÷¶¼Åª²»ºÃ%>_<%£©¿ªÊ¼ÒÔΪÊÇÒòΪADÓòµÄÔÒò£¬ºóÀ´É¾µôÓòÓÖÖØ½¨Óò£¬È»ºóÔÙ×°£¬ÓÖ±¨2´í£¬ÓÚÊÇÎʱðÈËËÑË÷µÈµÈ£¬ÕÒµ½ÔÒòËµÒªÖØÐÂ×¢²áinstaller£¬×îÖÕ°²×°³É¹¦ÁË£¬º¦ÎÒ¼Ó°à۵쬏ßÐ˵ÄÊǰ²×°ºÃÀ²£¬¿ÉÊÇÎÒûÓÐŪÃ÷°×µ½µ×ÊÇɶÔÒòµ¼ÖÂsql°²×°²»ÁËÄØ£ ......