SQL·ÖÒ³
SQL·ÖÒ³
ÍòÄÜ·ÖÒ³
.net´úÂë
select top ÿҳÏÔʾµÄ¼Ç¼Êý * from topic where id not in
(select top £¨µ±Ç°µÄÒ³Êý-1£©×ÿҳÏÔʾµÄ¼Ç¼Êý id from topic order by id desc)
order by id desc
select top ÿҳÏÔʾµÄ¼Ç¼Êý * from topic where id not in
(select top £¨µ±Ç°µÄÒ³Êý-1£©×ÿҳÏÔʾµÄ¼Ç¼Êý id from topic order by id desc)
order by id desc
sql2005·ÖÒ³
.net´úÂë
with temptbl as (
SELECT ROW_NUMBER() OVER (ORDER BY id desc)AS Row,
...
)
SELECT * from temptbl where Row between @startIndex and @endIndex
.net´úÂë
select top ÿҳÏÔʾµÄ¼Ç¼Êý * from topic where id not in
(select top £¨µ±Ç°µÄÒ³Êý-1£©×ÿҳÏÔʾµÄ¼Ç¼Êý id from topic order by id desc)
order by id desc
select top ÿҳÏÔʾµÄ¼Ç¼Êý * from topic where id not in
(select top £¨µ±Ç°µÄÒ³Êý-1£©×ÿҳÏÔʾµÄ¼Ç¼Êý id from topic order by id desc)
order by id desc
sql2005·ÖÒ³
.net´úÂë
with temptbl as (
SELECT ROW_NUMBER() OVER (ORDER BY id desc)AS Row,
...
)
SELECT * from temptbl where Row between @startIndex and @endIndex
Ïà¹ØÎĵµ£º
sql serverϵͳ±íÏêϸ˵Ã÷
sysaltfiles
Ö÷Êý¾Ý¿â ±£´æÊý¾Ý¿âµÄÎļþ
syscharsets
Ö÷Êý¾Ý¿â×Ö·û¼¯ÓëÅÅÐò˳Ðò
sysconfigures
Ö÷Êý¾Ý¿â ÅäÖÃÑ¡Ïî
syscurconfigs
Ö÷Êý¾Ý¿âµ±Ç°ÅäÖÃÑ¡Ïî
sysdatabases
Ö÷Êý¾Ý¿â·þÎñÆ÷ÖеÄÊý¾Ý¿â
syslanguages
Ö÷Êý¾Ý¿âÓïÑÔ
&n ......
ÎÒÃÇÖªµÀ£¬SQL ServerÊÂÎñÈÕÖ¾Ö÷ÒªÊÇÓÃÀ´¼Ç¼ËùÓÐÊÂÎñ¶ÔÊý¾Ý¿âËù×öµÄÐ޸ģ¬Èç¹ûϵͳ³öÏÖ¹ÊÕÏ£¬Ëü½«³ÉΪ×îÐÂÊý¾ÝµÄΨһÀ´Ô´¡£ÈÕÖ¾µÄ²Ù×÷³£ÓÐÒÔϼ¸¸öÓ¦Óãº
Ò»¡¢ÊÂÎñÈÕÖ¾ÎļþLDFµÄ¶ªÊ§
µ±ÎÒÃDz»Ð¡É¾³ý»òÕßLDFÎļþ¶ªÊ§µÄʱºò£¬Êý¾Ý¿âֻʣÏÂMDFÎļþ£¬´Ëʱֱ½Óͨ¹ý¸½¼ÓMDFÊÇÎÞ·¨»Ö¸´Êý¾Ý¿âµÄ£¬ÄÇÎÒÃÇÔõôÑù²ÅÄָܻ´Êý¾Ý¿âÄØ?Î ......
ORMϵͳ±ØÐë°ÑÊý¾Ý¿âÖеÄÊý¾Ýת»»ÎªÒµÎñÊý¾Ý£¬×ª»»µÄ·½·¨´óÖÂÓÐ3ÖÖ£¬±¾ÎľÍÊÔͼ¶ÔËüÃÇ×öһЩ¼òµ¥·ÖÎö¡£
1¡¢ÊôÐÔ·´Éä¡£¾ÍÊÇͨ¹ý·´É䣬»ñȡҵÎñʵÌåÀàµÄ¸÷¸öÊôÐÔ£¬È»ºóÔÙÉèÖÃÕâЩÊôÐÔµÄÖµ¡£Õâ¸ö·½·¨×î¼òµ¥¡¢×îÎȶ¨¡¢Í¨ÓÃÐÔ×îÇ¿¡¢¿Éά»¤ÐÔ×îÇ¿¡¢ÐÔÄÜ×î²î¡£ÀýÈçNHibernate¾ÍÊÇÓÃÕâÖÖ·½·¨ÊµÏֵģ¬Ëüͨ¹ýIGetterºÍISetter½Ó¿ÚÊµÏ ......
Ò»¡¢ÓÃÈçϲ½×öÁË£º
1¡¢DUMP¡¡TRANSACTION¡¡¿âÃû¡¡WITH¡¡no_log
2¡¢dbcc
shrinkfile(logfilename)
3¡¢ÊÕËõÊý¾Ý¿â
4¡¢É趨×Ô¶¯ÊÕËõ¡£
¡¡¡¡¶þ¡¢·ÖÀëÊý¾Ý¿â,ɾ³ýÈÕÖ¾
Îļþ,ÔÙ¸½¼Ó,OK!ÓÒ»÷Êý¾Ý¿â££ËùÓÐÈÎÎñ££·ÖÀëor ¸½¼Ó
¡¡¡¡Èý¡¢1¡¢backup
log¡¡¿âÃû¡¡WITH¡¡no_log£¬2¡¢dbcc shrinkfile(logfilename)£¬3¡ ......