SQLÖÐÈçºÎÓÃÒ»¸ö±í¸üÐÂÁíÒ»¸ö±í
for ACCESS :
update a, b set a.name=b.name1 where a.id=b.id
for SQL Server:
"update a set a.name=b.name1 from a,b where a.id=b.id"
update a set a.status=b.status
from table1 a,table2 b
where a.id1=b.id1
update a inner join b on a.a1=b.b1 set a.a2=b.b2Ìõ¼þ
update table1 set a.status = b.status
from table1 a inner join table2 b
on a.idl = b.idl
http://topic.csdn.net/t/20041013/14/3451961.html
http://www.cnblogs.com/hanguoji/archive/2007/02/01/636723.aspx
Ïà¹ØÎĵµ£º
/*
±êÌ⣺ÆÕͨÐÐÁÐת»»(version 2.0)
×÷Õߣº°®Ð¾õÂÞ.ع»ª
ʱ¼ä£º2008-03-09
µØµã£º¹ã¶«ÉîÛÚ
˵Ã÷£ºÆÕͨÐÐÁÐת»»(version 1.0)½öÕë¶Ôsql server 2000Ìṩ¾²Ì¬ºÍ¶¯Ì¬Ð´·¨£¬version 2.0Ôö¼Ósql server 2005µÄÓйØÐ´·¨¡£
ÎÊÌ⣺¼ÙÉèÓÐÕÅѧÉú³É¼¨±í(tb)ÈçÏÂ:
ÐÕÃû ¿Î³Ì ·ÖÊý
ÕÅÈý ÓïÎÄ 74
ÕÅÈý Êýѧ 83
ÕÅÈý ÎïÀí 93 ......
Sqlʱ¼äº¯Êý
Ò»¡¢sql serverÈÕÆÚʱ¼äº¯Êý
Sql ServerÖеÄÈÕÆÚÓëʱ¼äº¯Êý
1. µ±Ç°ÏµÍ³ÈÕÆÚ¡¢Ê±¼ä
select getdate()
2. dateadd ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐ嵀 datetime Öµ
......
*
sql xml ÈëÃÅ:
--by jinjazz
--http://blog.csdn.net/jinjazz
1¡¢xml: ÄÜÈÏÊ¶ÔªËØ¡¢ÊôÐÔºÍÖµ
2¡¢xpath: ѰַÓïÑÔ£¬ÀàËÆwind ......
1¡¢²éѯ±íÖÐÖØ¸´Êý¾Ý¡£select * from people
where peopleId in (select peopleId from people group by peopleId having count(peopleId) > 1)
2¡¢É¾³ý±íÖжàÓàµÄÖØ¸´¼Ç¼£¬Öظ´¼Ç¼ÊǸù¾Ýµ ......