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°¡£¿
·Ç³£¸Ðл
Â¥ÉϵÄÏÈл¹ýÁË£¬²»¹ýÕâ¸öºÃÏñ²»¶Ô°É£¿»òÕßÎÒûÓÐÃèÊöÇå³þ
ÎÒÏÖÔÚÊÇÏëʵÏÖÕâÑùµÄ¹¦ÄÜ£ºÔÚÒ³ÃæÉÏÁгöÎÄÕµıêÌâÁÐ±í£¬ÆäÖÐÿƪÎÄÕÂÏÂÃæÁгöÊôÓÚ´ËÎÄÕµÄËùÓÐÆÀÂÛÐÅÏ¢¡£
ÕâÑùµÄÓï¾äÔõôд°¡£¿
»òÕßÖ»ÄÜÊǵÚÒ»´ÎÖ»ÊÇÁгöÎÄÕ±êÌ⣬Ȼºóÿ¼ÓÔØÒ»ÌõÎÄÕ¾ÍÈ¥Êý¾Ý¿â²éѯһ´ÎËùÓÐµÄÆÀÂÛ£¿ÕâÑùÈç¹ûÿҳÏÔʾ10ÌõµÄ»°£¬ÄÇÕâ¸öÒ³ÃæÖÁÉÙÒªÁ¬½ÓÊý¾Ý¿â½øÐÐ11´Î£¬ÕâÑùЧÂÊÊDz»ÊÇÓÐЩµÍ°¡£¿
ÒÔÄĸöΪ׼£¿
(²»Òª¸ß¹ÀÄãµÄººÓï±í´ïÄÜÁ¦»òÕßÎҵĺºÓïÀí½âÄÜÁ¦)
½¨ÒéÄãÁгöÄãµÄ±í½á¹¹£¬²¢Ìṩ²âÊÔÊý¾ÝÒÔ¼°»ùÓÚÕâЩ²âÊÔÊý¾ÝµÄËù¶ÔÓ¦ÕýÈ·½á¹û¡£
²Î¿¼Ò»ÏÂÕâ¸öÌù×ÓµÄÌáÎÊ·½Ê½http://topic.csdn.net/u/20091130/20/8343ee6a-417c-4c2d-9415-fa46604a00cf.html
1. ÄãµÄ create table xxx .. Óï¾ä
2. ÄãµÄ insert into xxx ... Óï¾ä
3. ½á¹ûÊÇʲôÑù£¬£¨²¢¸øÒÔ¼òµ¥µÄËã·¨ÃèÊö£©
4. ÄãÓõÄÊý¾Ý¿âÃû³ÆºÍ°æ±¾(¾³£ÓÐÈËÔÚMS SQL server°æÎÊ MySQL)
ÕâÑùÏë°ïÄãµÄÈË¿ÉÒÔÖ±½Ó´î½¨ºÍÄãÏàͬµÄ»·¾³£¬²¢ÔÚ¸ø³ö·½°¸Ç°½øÐвâÊÔ£¬±ÜÃâÎÄ×ÖÃèÊöÀí½âÉϵÄÎó²î¡£
Â¥ÉϵIJ»ºÃÒâ˼
Ïà¹ØÎÊ´ð£º
´ó¼Ò°ïæ¿´¿´Õâ2¸ösqlÓï¾äÄĸö²éѯµÄËٶȸü¿ìµã¡£Ð»Ð»°ïæ¡£±È½Ï׿±¡£ÔÚ×öÐÔÄܲâÊÔ¡£
select * from
±íA LEFT OUTER JOIN ±íB ON (±íA.id || ' ' =±íB.id) ,±íC , ±íD, ±íE
WhereÆäËûÌõ¼þ
select * ......
sql 2005Êý¾Ý¿âÎÒÏëµÃµ½Ò»×Ö·û´®Îª:
sldkf|||sdeww
erkv|||rltdk
jemcl|||ligf
¾ÍÊÇ|||ºóÃæµÄ×Ö·ûÓÐʲôº¯ÊýÄܵõ½Âð£¿ÊÇÔÚsqlÓï¾äдµÄ£¬²»ÊÇÔÚÒ³ÃæÐ´µÄ£¬ÄÇλ¸ßÊÖÀ´Ö¸½ÌÏ£¬ÐÂÊÖ£¬Ð»Ð»
ÔÎ µ ......
ÎÒÓÐÒ»¸ö±í£¬½á¹¹ÊÇÕâÑù¡£
ת³ö µ¥Î» תÈ뵥λ ±ÊÊý ½ð¶î
date(Ö÷) outid(Ö÷) inid(Ö÷) num amt
2009 1 2 1 500 Ϊ 1 µ¥Î» ÔÚ2009Ä ......
clientserial devseral chunnelnum devdata5
CZ0001 308001 5000 11.1
CZ0001 308001 5001 11.2
CZ0001 308001 5002 11.3
CZ0001 3080 ......
<table style="width: 1000px"><tr>
<td style="height: 38px; width: 35px;">
ÐÕÃû</td>
......