ÇóÒ»sqlÓï¾ä - MS-SQL Server / »ù´¡Àà
±íA
UID name
1 Сºì
2 С¸Õ
3 СÃ÷
4 СÀ¼
±íB
ID groupname UID1 UID2
1 Î޵жþÈË×é 2 3
2 ÎÞÊÓ¶þÈË×é 1 4
ÎÒÒªµÃ±íBËùÓÐÊý¾Ý,µ«ÊÇuid1£¬uid2Òª¶ÔÓ¦±íaµÄÕæÃû,Èç:
groupname name1 name2
Î޵жþÈË×é С¸Õ СÃ÷
ÎÞÊÓ¶þÈË×é Сºì СÀ¼
²»Ê죬°ï¶¥
SQL code:
select B.groupname,A1.name,A2.name
from A A1,A A2,B
where A1.uid=B.uid1 and A2.uid2=B.uid2
SQL code:
--------------------SQL ServerÊý¾Ý¸ñʽ»¯¹¤¾ß-------------------
---------------------------------------------------------------
-- DESIGNER :happycell188(ϲϲ)
-- QQ :584738179
-- Development Tool :Microsoft Visual C++ 6.0 C Language
-- FUNCTION :CONVERT DATA TO T-SQL
---------------------------------------------------------------
-- Microsoft SQL Server 2005
-- Developer Edition on Microsoft Windows XP [°æ±¾ 5.1.2600]
---------------------------------------------------------------
---------------------------------------------------------------
use test
go
if object_id('test.dbo.a') is not null drop table a
-- ´´½¨Êý¾Ý±í
create table a
(
UID int,
name varchar(7)
)
go
--²åÈë²âÊÔÊý¾
Ïà¹ØÎÊ´ð£º
ÎÒÓжà¸ö±íA B C ½á¹¹ÊÇÒ»ÑùµÄ£¬¶¼ÓÐ2¸ö×Ö¶ÎnameºÍcontent,ÎÒÒªËÑË÷ËùÒÔ±íËùÓÐ×Ö¶ÎÖаüº¬¡°Öйú¡±µÄÄÚÈÝ Õâ¸öSQLÓï¾äÔõôд
ÈçºÎ½«¶à¸ö±íµÄ²éѯ½á¹ûÁ¬³ÉÒ»¸ö±í Õâ¸öSQLÓï¾äÔõôд ±íµÄ½á¹¹ÊÇÒ»ÑùµÄ
ÀýÈç£ ......
sqlserver2005 ½¨Á¢µÄÊý¾Ý¿â£¬ÓëÊÖ³Öpda´«ÊäÊý¾Ý£¬×î½üͻȻ³öÏÖÎÞ·¨´«µÝÊý¾ÝµÄÎÊÌ⣬pda¶ËÌáʾµÄ´íÎóʱoutofmemoryexception£¬µ«ÊÇpdaÉÏÃæµÄÈÝÁ¿Ã»ÓÐÎÊÌ⣬
sqlserverµÄÈÕ×ÓÉϵĴíÎóÈçÏ£º
ÈÕÆÚ 2010-1-25 14:45: ......
3̨µçÄÔ£¬ÆäÖÐһ̨×÷ΪMYSQL·þÎñÆ÷£¬ÁíÍâ2̨ΪTOMCAT·þÎñÆ÷¡£
MYSQL·þÎñÆ÷ÀïÓÐÒ»Ìõ¼Ç¼£¬ IDΪ10.
ÏÖÔÚ2̨TOMCATͬʱ£¨100%£©·¢ÆðÐÞ¸ÄMYSQLÀïIDΪ10µÄÄÇÌõ¼Ç¼£¬±ÈÈçÐ޸ĴËID¼Ç¼ÀïijһÏîµÄÄÚÈÝ¡£ ±ÈÈçTOMCAT 1Ò ......
ÓÐTABLEA ×Ö¶ÎΪ ²É¹ºµ¥ºÅ¡¢Ðкš¢ÎïÁϱàÂë¡¢Èë¿âÈÕÆÚ
ÏÖÏë°´ÕÕÎïÁϱàÂë²éѯ×î´óÈë¿âÈÕÆÚ
Óï¾äÈçÏ£º
SELECT ²É¹ºµ¥ºÅ¡¢Ðкš¢ÎïÁϱàÂë¡¢Èë¿âÈÕÆÚ from TABLEA A WHERE Èë¿âÈÕÆÚ=(SELECT MAX(Èë¿âÈÕÆÚ ......
±íA
ÈÕÆÚ Ö§³ö½ð¶î
2010-04-01 120
2010-04-02 250
2010-05-01 100
2010-05-04 200
2010-05-06 300
±íB
ÈÕÆÚ ......