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

SQL Server 2008ÐÂÌØÐÔ——SSMSÔöÇ¿

SQL Server 2008ÒѾ­·¢²¼ºÜ¶àÌìÁË£¬½ñÌìÀ´×ܽáÒ»ÏÂÎÒÃÇ×î³£ÓõŤ¾ßSSMSÔÚSQL 2008ÖеÄһЩ¸Ä½ø£º
1.ÔÚ×¢²áµÄ·þÎñÆ÷×éÖÐÒ»´ÎSQL²éѯ¿ÉÒÔÕë¶Ô¶à¸ö·þÎñÆ÷Ö´ÐС£
Ê×ÏÈÊÇÒªÔÚ“ÒÑ×¢²áµÄ·þÎñÆ÷”Öд´½¨×飬Ҳ¿ÉÒÔʹÓÃϵͳĬÈϵÄ×飬ȻºóÌí¼Ó¶à¸öÊý¾Ý¿âµ½×éÖС£½ÓÏÂÀ´ÓÒ»÷Êý¾Ý¿â×飬ѡÔñ“н¨²éѯ”Ñ¡Ïϵͳ½«´ò¿ªÒ»¸ö¶àÊý¾Ý¿â²éѯµÄ±à¼­Æ÷£¬Ñ¡Ôñ¶à¸ö·þÎñÆ÷Öй«¹²µÄÊý¾Ý¿â£¬ÔÚÆäÖÐÊäÈëSQLÓï¾äF5Ö´Ðм´¿É½«¶à¸ö·þÎñÆ÷ÖеÄÊý¾ÝÒ»´ÎÐÔ¶¼²éѯ³öÀ´¡£

2.¿ÉÒÔΪ²»Í¬µÄ·þÎñÆ÷ÉèÖò»Í¬µÄ״̬À¸ÑÕÉ«¡£
ÔڵǼ·þÎñÆ÷µÄʱºò£¬Ñ¡Ôñ“Ñ¡Ïî”°´Å¥£¬È»ºó¿ÉÒÔÔÚ“Á¬½ÓÊôÐԔѡÏÖÐÉèÖÓʹÓÃ×Ô¶¨ÒåÑÕÉ«”£¬Èçͼ£º

µÇ¼ºó½ÓÏÂÀ´²éѯµÄ״̬À¸½«»áÊÇÎÒÃÇ×Ô¶¨ÒåµÄÑÕÉ«£º

Õâ¸ö¹¦ÄÜÓÐʲôÓÃÄØ£¿ÔÚÏîÄ¿¿ª·¢Öо­³£ÐèÒªÁ¬½Óµ½¶ą̀·þÎñÆ÷ÖУ¬¿ª·¢»·¾³Êý¾Ý¿âÒ»ÖÖÑÕÉ«¡¢²âÊÔ»·¾³Ò»ÖÖÑÕÉ«£¬ÕâÑù¶àÐÑÄ¿°¡£¬²»ÈÝÒ׸ã»ì¡£
3.»î¶¯ºÍ¼àÊÓÆ÷
ÔÚSQL Server 2005µÄʱºò¿ÉÒÔÏÂÔØÒ»¸öPerformance Dashboard Reports£¬È»ºóÔÚSSMSÖÐÌí¼Óµ½±¨±íÖУ¬¿ÉÒÔͨ¹ý±¨±íµÄ·½Ê½À´²é¿´Êý¾Ý¿âʵÀýµÄ»î¶¯Çé¿ö¡£ÏÖÔÚºÃÁË£¬SSMS2008ÖÐÖ±½ÓʹÓӻºÍ¼àÊÓÆ÷”¹¦ÄÜÀ´ÊµÏÖÁË¡£ÊµÖÊÉÏÿ15ÃëÖÓ´Ó¶¯Ì¬¹ÜÀíÊÓͼÖвɼ¯Ò»´ÎÊý¾Ý£¬È»ºóչʾ³öÀ´¡£¹¦ÄܱȽÏÇ¿´ó£¬½ø³Ì¡¢×ÊÔ´µÈ´ý¡¢IOÇé¿öµÈ¶¼¿ÉÒÔչʾ³öÀ´¡£ÔÚ¶ÔÏó×ÊÔ´¹ÜÀíÆ÷ÖÐÓÒ»÷Êý¾Ý¿âʵÀý£¬È»ºóÑ¡Ôñ“»î¶¯ºÍ¼àÊÓÆ÷”Ñ¡Ïî¼´¿É´ò¿ª£¬Èçͼ£º

ÔÚSQL Server 2008ÖжԶ¯Ì¬¹ÜÀíÊÓͼ½øÐÐÁËÐÞ¸Äsys.dm_os_sys_infoÖÐÈ¥µôÁËcpu_ticks_in_msÁУ¬Ìí¼ÓÁËÁ½¸öÐÂÁУ¬¶øÕâÐÂÁÐÔڻºÍ¼àÊÓÆ÷ÖоÍÒªÓõ½£¬ÓÉÓÚSQL2005ûÓжÔÓ¦µÄÁУ¬ËùÒÔʹÓÃSSMS2008¿ÉÒÔÁ¬½ÓSQL2005·þÎñÆ÷²¢´ò¿ª»î¶¯ºÍ¼àÊÓÆ÷£¬µ«ÊǵÚÒ»¸öͼ“´¦ÀíÆ÷ʱ¼ä°Ù·Ö±È”ÎÞ·¨ÏÔʾ¡£ÆäËûµØ·½ºÃÏñ»¹ÊÇͦÕý³£µÄ¡£
4.ÌṩÁË·ÖÇøÏòµ¼
ÔÚSSMS2005ÖÐÒª¶Ô±í½øÐзÖÇøÄǾÍÖ»ÓÐÊÖ¶¯´´½¨·ÖÇø·½°¸¡¢·ÖÇøº¯Êý£¬È»ºóÓ¦Óõ½±í¡£ÏÖÔÚºÃÁË£¬SSMS2008ÌṩÁË·ÖÇøÏòµ¼£¬ÔÚÒª·ÖÇøµÄ±íÉÏÃæÓÒ»÷£¬È»ºóÑ¡Ôñ“´æ´¢”ÏÂÃæµÄ“´´½¨·ÖÇø”Ñ¡Ïî¼´¿É¡£½ÓÏÂÀ´¾Í°´ÕÕÏòµ¼µÄÒªÇó×ö¾ÍÊÇÁË¡£
5.¼ÓÇ¿Á˶ÔÏó×ÊÔ´¹ÜÀíÆ÷ÏêϸÐÅÏ¢
SSMS2008ÖÐĬÈÏÊÇûÓпªÆô¶ÔÏó×ÊÔ´¹ÜÀíÆ÷ÏêϸÐÅÏ¢£¬Ê¹Óÿì½Ý¼üF7¿ÉÒÔºô»½³öÀ´¡£ÏÖÔÚÔÚÏêϸÐÅÏ¢Ò³Ãæ¿ÉÒÔÌṩ¸ü¶àµÄÐÅÏ¢£¬ÀýÈç¿ÉÒÔÖ±½ÓÁгöÿ¸öÊý¾Ý¿âµÄ´óС£¬ÔÚ±íÏêϸÐÅÏ¢ÖпÉÒÔÁгöÿ¸ö±íµÄÐÐÊýµÈµÈ¡£Í¨¹ýÓÒ»÷ÏêÏ


Ïà¹ØÎĵµ£º

sqlÓÅ»¯Ö®:ÉîÈëdz³öÀí½âË÷Òý(ϵÁÐÒ»)(½²½â·Ç³£Í¸³¹)

±¾ÎÄ×ªÔØ×Ô http://database.ctocio.com.cn/tips/272/7588272.shtml
΢ÈíµÄSQL SERVERÌṩÁËÁ½ÖÖË÷Òý£º¾Û¼¯Ë÷Òý(clustered index£¬Ò²³Æ¾ÛÀàË÷Òý¡¢´Ø¼¯Ë÷Òý)ºÍ·Ç¾Û¼¯Ë÷Òý(nonclustered index£¬Ò²³Æ·Ç¾ÛÀàË÷Òý¡¢·Ç´Ø¼¯Ë÷Òý)……
¡¡¡¡(Ò»)ÉîÈëdz³öÀí½âË÷Òý½á¹¹
¡¡¡¡Êµ¼ÊÉÏ£¬Äú¿ÉÒÔ°ÑË÷ÒýÀí½âΪһÖÖÌØÊâµÄĿ¼¡£ ......

SQL Server Ë÷Òý»ù´¡ÖªÊ¶(4)

ÓÐЩÈË¿ÉÄܶÔÖ÷¼üºÍ¾Û¼¯Ë÷ÒýÓÐËù»ìÏý£¬ÆäʵÕâÁ½¸öÊDz»Í¬µÄ¸ÅÄÏÂÃæÊÇÒ»¸ö¼òµ¥µÄÃèÊö¡£²»Ïë¿´ÈÆ¿ÚÎÄ×ÖÕߣ¬Ö±½Ó¿´Á½ÕßµÄ¶Ô±È±í¡£ÓÈÆäÊÇ×îºóÒ»ÏîµÄ±È½Ï¡£
Ö÷¼ü£¨PRIMARY KEY £©
À´×ÔMSDNµÄÃèÊö£º
±íͨ³£¾ßÓаüº¬Î¨Ò»±êʶ±íÖÐÿһÐеÄÖµµÄÒ»ÁлòÒ»×éÁС£ÕâÑùµÄÒ»Áлò¶àÁгÆÎª±íµÄÖ÷¼ü (PK)£¬ÓÃÓÚÇ¿ÖÆ±íµÄʵÌåÍêÕûÐÔ¡£ÔÚ´´½ ......

sql join on Ó÷¨

A left join B µÄÁ¬½ÓµÄ¼Ç¼ÊýÓëA±íµÄ¼Ç¼Êýͬ
A right join B µÄÁ¬½ÓµÄ¼Ç¼ÊýÓëB±íµÄ¼Ç¼Êýͬ
A left join B µÈ¼ÛB right join A
table A:Field_K, Field_A1     a3     b4     ctable B:Field_K, Field_B1     x2  &nbs ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ