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

Ò»條SQL語¾ä

ÒªÇó£º
a  b    A
a  b    C
b  b1  A
b  b1  D
b  b    B
c  b!  A

變為 £º
a  b  A/C
b  b1  A/D
b  b  B
c  b1  A
請問¿ÉÒÔÓÃÒ»¾ä話實現嗎£¿
05µÄ¿ÉÒÔ

000µÄҪдº¯Êý

SQL code:
select
col1,col2,
col3=stuff((select '/'+col3 from tb where col1=t.col1 and col2=t.col2 for xml path('')),1,1,'')
from tb t
group by col1,col2

ÊÊÓÃsql2005¼°ÒÔÉϰ汾

ÎÒÊÇsql2000µÄ£¬Ä¿Ç°¿ÉÒÔÀûÓÃ遊標¼°select @t=isnull(@t,'')+col2 from tab1 來實現£¬ÏëÕÒÒ»簡單·½·¨



select col1,col2,dbo.f_str(col1,col2) as col3
from tb
group by col1,col2

ÎÒ採ÓÃ遊標·½Ê½處ÀíÁË£¬還ÊÇ謝謝¸÷λ£¡


Ïà¹ØÎÊ´ð£º

csvÎļþת»»³Ésqlµ¼Èëµ½Êý¾Ý¿â£¬Ã»ÓÐÊý¾ÝΪºÎ£¿

Ö´ÐеÄ˳Ðò£º
1£©Îļþä¯ÀÀ¿ò£¨Ñ¡ÔñÎļþʹÓã©
Ñ¡ÔñºÃÎļþºó
µã»÷Ò»¸öµ¼Èë°´Å¥µÄʱºò £¬°ÑÉÏÃæÉÏ´«¿òÀïµÄcsvÎļþÒÔÒ»¸öIDΪÎļþÃû£¬ÉÏ´«µ½**/**Îļþ¼ÐÏÂ
2£©¶ÁÈ¡Õâ¸öÎļþ¼ÐϵÄcsvµÄÎļþ£¬×ª»»³Ésql
3 ......

pl/sql - Oracle / ¿ª·¢

СµÜ£¬×î½üҪתÐÐÈ¥×öoracle¿ª·¢ÁË£¬ÓÉÓÚ´óѧ±Ïҵʱ£¬×ßÁ˸öÍä·£¬ÏÖÔÚºÜСÐÄ£¬ÎÊÏ£¬×öPL/SQLÓÐûÓÐǰ;£¿£¿£¿
µ±È»ÎÒ˵µÄÕâ¸öǰ;ÊÇÖ¸ ÒÔºóÒªÌø²Û£¬Êг¡¶ÔÕâÑùµÄÈ˲ŵÄÐèÇóÁ¿´ó²»´ó£¿£¿

3q ÄÇ¿´À´»¹Ö»ÄÜÏȽӴ ......

ÇóÒ»sqlÓï¾ä - MS-SQL Server / ÒÉÄÑÎÊÌâ

ÏÖÔÚÓÐÁ½ÕÅ±í£ºÎÄÕÂÖ÷±íA(articleId,articleTitle)£¬ÎÄÕÂÆÀÂÛ±íB(commentId,articleId,commentTitle)
ÏÖÔÚÎÒÏëʵÏÖÕâÑùµÄ¹¦ÄÜ£ºÁгöÎÄÕÂÁÐ±í£¬ÆäÖÐÿƪÎÄÕ±êÌâÏÂÃæÁгö´ËÎÄÕµÄǰ2¸öÎÄÕÂÆÀÂÛ£¬ÇëÎÊsqlÓï¾äÔõôд°¡ ......

ÇëÎÊASPÈçºÎÁ¬½Ó¶à¸öSQL SERVER£¿ - Web ¿ª·¢ / ASP

ÓÐÁ½¸ö»òÒÔÉϵÄÔ¶³ÌÊý¾Ý¿â£¬ÈçºÎÓÃASP¼ì²âÁ¬½ÓËٶȲ¢Á¬½Ó×î¿ìµÄMSSQLÊý¾Ý¿â£¿

ÓÐÕâÑùµÄASPº¯ÊýÂð£¿ÎÒGOOGLEÁËһϣ¬ÕÒ²»µ½¡£

PHP+MYSQLÏÂÓÐÕâÖÖÀý×Ó£º
PHP code:

Example:
$wgDBservers = array(
......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ