Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

access Êý¾Ý¿â È¥³ýÖØ¸´ ²¢ ÒÔidµ¹Ðò µÄsql д·¨

access Êý¾Ý¿â È¥³ýÖØ¸´ ²¢ ÒÔidµ¹Ðò µÄsql д·¨

ÓÐÒ»¸ö±íΪ£º
id  name
-----------
1    xxx
2    111
3    xxx
4    333
ÒªÇó²é³öÀ´µÄ½á¹ûΪ£º
name
-----------
333
xxx
111
ÔõôʵÏÖ£¿£¿Çë½Ì¸ßÊÖ

select disticnt id,name
from ±í order by id desc

ÎÒ±¾À´ÊÇÕâÑùдµÄ µ«Õâд·¨ÊÇÔÚaccess±¨´íµÄ

select name
from ±í group by name order by id desc

ÄãÕâÑùдµÄÒ²²»¶Ô°¡


SQL code:
SELECT * from TB t where not exists(select 1 from TB where t.name=name And t.id<id) order by id desc


Õâ¸öÓ¦¸Ã¿ÉÒÔ
select * from tb1 where [id] in
(
SELECT max([id])  from tb1 group by [name]
)
order by [id] desc


http://www.mybuffet.cn

SELECT d1.[num1], d1.[num2]
from t as d1  where d1.[num1] in (select max(d2.num1) from t as d2 where d2.num2 = d1.num2)
order by d1.num1 desc

select disticnt id,name
(
select  id,name
from ±í order by id desc
)


Ïà¹ØÎÊ´ð£º

ÇóÒ»SQL - MS-SQL Server / »ù´¡Àà

±íÈçÏÂ
½ÌÊÒID ×ùλÊý ¿ªÊ¼Ê±¼ä ½áÊøÊ±¼ä 2009Äê1ÔÂ1ÈÕ 2009Äê1ÔÂ2ÈÕ 2009Äê1ÔÂ3ÈÕ
  101 50 08£º00 08£º30 30 40 50  
  101 50 09£º00 ......

Access²éÕÒÖØ¸´ÎÊÌâ - ÆäËûÊý¾Ý¿â¿ª·¢ / Access

ÎÒÓÃAccessÊý¾Ý¿â×öÁËÒ»¸öͼÊéÊý¾Ý¿â£¬ÀïÃæÓÐÒ»¸ö×Ö¶ÎÊÇISBN£¬¾ÍÊÇISBNºÅ£¬µ«ÊÇÖ»µÄÒ»×Ü·ÖͼÊéдµÄISBNºÅ£¬ÓеÄûд£¬Ð´µÄÄÇÒ»²¿·ÖÓеÄISBNÊÇÖØ¸´µÄ£¬ÄÜ·ñÓÃSQLÓïÑÔ°ÑÖØ¸´µÄ¹ýÂ˵ô£¬µ«Ã»Ð´ISBNºÅµÄͼÊé²»ÄܹýÂ˵ô£¬È ......

´íÎóÐÅÏ¢Access violation....

ÕâÁ½Ììѧϰ¡¶Delphi¼¼Êõ·½°¸±¦µä¡·Ò»ÊéÖеÚÈýÕ¹ØÓÚÓû§µÇ¼·½°¸µÄÀý×Ó£¬ÀûÓõÄÊÇSQl ServerÊý¾Ý¿âʵÏÖÓû§µÇ¼£¬±àÒëÔËÐж¼Ã»ÎÊÌ⣬¸ÃʵÏֵŦÄÜÒ²¶¼ÊµÏֵĺܺ㬵«ÊÇÆæ¹ÖµÄÊÇ£¬·´¸´ÔËÐÐÒ»¶Îʱ¼äºó£¬ÓÐʱÔڹرÕÕû¸ö ......

ÈçºÎ´ÓACCESSÊý¾Ý¿âÖÐÒ»´Î²éѯ¶à¸ö±í²¢¼ÓÈëÊý¾Ý¼¯?

ÔÚMSSQLÖУ¬ÎÒÃÇ¿ÉÒÔÒ»´Î²éѯ¶à¸öÊý¾Ý±í²¢¼ÓÈëµ½Êý¾Ý¼¯ÖУ¬ÖмäÖ»ÐèÓ÷ֺŸô¿ª£®È磺
£¢select * from A;select * from B;select * from C£¢,Ìî³äÊý¾Ý¼¯ºóÔÚDSÖоÍÓÐÁËÈýÕÅ±í£®
µ«ÔÚÓÃͬÑùµÄÓï¾ä·ÃÎÊACCESSÊý¾ ......

ÈçºÎ½«XMLÊý¾Ý´æÈëACCESSÊý¾Ý¿â

ÇëÎʸ÷λ´óʦ£¬ÎÒÏÖÔÚÐèÒª½«XMLµÄÊý¾ÝʵʱµÄ´æÈëµ½Êý¾Ý¿âÖУ¬ÎÒÊÇÓÃasp±àµÄ³ÌÐò£¬´óÁ¿Ãǰïæ·ÖÎö һϣ¡£¡£¡
ÏÂÃæÊÇÎÒµÄXMLÎļþ´úÂë
XML code:

<?xml version="1.0" encoding="utf-8"? ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ