MSSQLÖÐÈçºÎÑ¡ÔñÒ»ÐÐÖÐ×îСµÄʱ¼ä£¿
Ò»ÕÅ±í£¬×ֶηÖΪid,time1,time2,time3,time4,time5
ÇëÎÊÎÒÓ¦¸ÃÈçºÎÑ¡ÔñIDΪ1µÄÄÇÌõ¼Ç¼ÖÐtimeʱ¼ä×îСµÄÖµÄØ£¿
UP!
[code=SQL][/code]select min(t) from
(select time1 as t from t1 where id=1 union all
select time2 as t from t1 where id=1 union all
select time3 as t from t1 where id=1 union all
select time4 as t from t1 where id=1 union all
select time5 as t from t1 where id=1 ) as tb
[code=SQL][/code] select min(t) from
(select time1 as t from t1 where id=1 union all
select time2 as t from t1 where id=1 union all
select time3 as t from t1 where id=1 union all
select time4 as t from t1 where id=1 union all
select time5 as t from t1 where id=1 ) as tb
Óö¯Ì¬Á¬½ÓÒ»ÏÂ×Ö·û´®
ÔΡ£¡£¡£Õâô¶àµÄSQLÓï¾ä°¡¡£¡£ÄÇÖ´ÐÐÆðÀ´Ëù»¨µÄʱºòÊDz»ÊǺܶడ¡£¡£¡£
SQL code:
----------------------------------------------------------------
-- Author :SQL77(ֻΪ˼ÆëÀÏ)
-- Date :2010-01-26 19:29:35
-- Version:
-- Microsoft SQL Server 2000 - 8.00.194 (Intel X86)
-- Aug 6 2000 00:57:48
-- Copyright (c) 1988-2000 Microsoft Corporation
-- Desktop Engine on Windows NT 5.1 (Build 2600: Service Pack 3)
--
----------------------------------------------------------------
--> ²âÊÔÊý¾Ý£º#TB
if object_id('TB') is not null drop table TB
go
cr
Ïà¹ØÎÊ´ð£º
mssqlÈçºÎÖ»ÏÔʾÓÐÖظ´µÄÊý¾ÝÄØ£¿
ÓÐÖظ´µÄÊý¾Ý¾ÍÏÔʾһÌõÖظ´µÄÊý¾Ý£¬Ã»Öظ´µÄ²»ÏÔʾ£¬²éѯÓï¾ä¸ÃÔõôдÄØ£¿Ð»Ð»
SQL code:
select distinct *
from tablename
where id in (
selec ......
ÏÖÔÚÁ¬µÄÒ»Ô¶³Ìmssql£¬Ã¿´Î²éѯ±È½ÏÂý£¬ÏÖÔÚÏëһϰÑËùÓмǼ²éѯ³öÀ´ÓÃÊý¾Ý¼¯±£´æÆðÀ´£¬È»ºóÕë¶ÔÊý¾Ý¼¯Ôٴβéѯɸѡ¡£
ÏÖÔÚÎÊÏÂÄǸöÊý¾Ý¼¯ÈçºÎ±£´æ²éѯ¼Ç¼£¬¶øÔٴβéѯ£¬¶àлÁË¡£
¿ÉÒÔ°ÑÊý¾Ý¼¯ÖеÄÊý¾Ý·Åµ½ÄÚ´ ......
ƽ°²Ò¹¸øûÊÕµ½ÀñÎïµÄGG &&MM ÎÒÀ´ËÍÀñÎïÀ²¡£
ÊÕµ½ÀñÎïµÄ¾Í±ð½Ó·ÖÁË£¡ÒªÊǽӲ»µ½°Ñ×Ô¼ºµÄ³ôÍà×ÓÄóöÀ´£¬µÈÊ¥µ®ÀÏÈËÍíÉÏËÍÄã°É£¡
SF
bd
sf
À´jfµÄ
²»´©Íà×Ó
JAVA php JS MYSQL C# °æ¶¼·¢Í ......
ÓÐÒ»¸öÊý¾Ý¿âÀïÖ»ÓÐ2WÌõÊý¾Ý²»µ½£¬È´ÓÐ500MÄÇô´ó,Ôõô»ØÊ°¡£¿ÊÇACCESSµÄÊý¾Ý¿â¡£ºóÀ´ÎÒ°ÑACCESSµ¼Èëµ½MSSQLÖУ¬Ò²Õ¼ÓÃÁË500M×óÓҵĿռ䣬Èç¹ûѹËõÊý¾Ý¿âÄØ£¿Çë¸ßÊÖÖ¸µã
ѹËõÊý¾Ý¿â£¿ÄÜ×öµ½Ã´...
ÆÚ´ý¸ßÈËÖ¸µã ÎÒ ......