StrSQL = "Select a.ID from Club_Basic_Info a left join club_item_info b on b.club_id = a.club_id"
Õâ¾äsql ÔÚsqlserver2005ÖÐÔËÐÐÄÜ·µ»Ø¼Ç¼ µ«°ÑËü·ÅÔÚasp³ÌÐòÖÐÈ´²»ÄÜ·µ»Ø¼Ç¼!
Ïñ ¶à±í²Ù×÷µÄsqlÓï¾ä ÔËÐж¼²»ÄÜ·µ»Ø¼Ç¼ ÕâÊÇÔõô»ØÊÂ
ʲôÒâ˼£¿
²»Ã÷°× ASP ¡ ......
SQL2000±¸·ÝµÄbakÎļþ£¬¿ÉÒÔÔÚSQL2005»òSQL2008ÉÏ»¹ÔÂð£¿
¿ÉÒԵϰ£¬¸ÃÔõô²Ù×÷ÄØ£¿
¿ÉÒÔÔÚ2005,2008²»¿ÉÒÔ,ÔÚ2005ÉÏ¿ÉÒÔÖ±½Ó»¹Ô.
¿ÉÒÔÔÙ05ÉÏÖ±½Ó»¹Ô£¬08ûÓùý
SQL code:
Restore filelistonly from disk='d:\backup\dbname.bak'
go
Restore database DBNAME from disk='d:\backup\DBNAME.bak'
w ......
±í½á¹¹£ºtable name:T1
FID int ×ÔÔö
FPYear int 4
FPMonth int 4
FFlag int 4
±íÊý¾Ý£º
FID FPYear FPMonth FFlag
1 2009 12 ......
id Ö¸±ê1 Ö¸±ê2 Ö¸±ê3 Ö¸±ê4
1 0 1 0 0
2 1 1 1
3 1 0
4 1 1 0
ÕâÊÇÒ»¸öÔʼ±í£¬ÆäÖÐ0´ú±íºÏ¸ñ£¬1´ú±í²»ºÏ¸ñ£¬Ã»ÓÐÌî´ú±íȱʧÊý¾Ý£»
Ä¿±ê±íÊÇÕâÑù£º
Ö¸±ê1 Ö¸±ê2 Ö¸±ê3 Ö¸±ê4
ºÏ¸ñÂÊ 33.33% 0 66.67% 100%
ºÏ¸ñÂʵÄËã·¨ÊÇ£ººÏ¸ñÂÊ=½á¹ûÊÇ¡°0¡±µÄ¼ÆÊý/¸ÃÖ¸±ê·ÇȱʧµÄ× ......
ÓÐËÖªµÀ
select getdate()
select getdate()+0.01
²î±ðÊýÖµµÄÔÒò
select getdate()+0.01
µÈ¼ÛÓÚ
select dateadd(ss,0.01*24*60*60,getdate())
select 0.01*24*60
0.01Ìì¡£¡£
24*60*60* 0.01 ÊÇÕâÁ½¸öµÄ²îÖµ.
select getdate()
select getdate()+0.01
dateadd(day,1, ......
ÇómysqlµÄÒ»¸ö¼òµ¥sqlÓï¾ä
id locate
1 11,1,111,2
2 111,22,33
3 1£¬11£¬23
....
ÒªÇó£¬ÎÒÏëÈ¡µÃlocateÖÐÓÐ11µÄÊý¾Ý£¨1£¬3Êý¾Ý£©£¬µ«ÊÇÓÃlikeµÄ»°Á¬µÚ¶þ¸öÊý¾ÝÒ²µÃµ½ÁË£¬¸ÃÔõô°ìÄØ£¿Õâ¸ösql¸ÃÔõÃ´Ð´ÄØ£¿
select ......