锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国产免费观看久久黄,欧美xxx.com,亚洲欧美在线一区二区http://www.aygfsteel.com/dongning/鑰佽懀鐨勫揩涔愮敓媧?/description>zh-cnTue, 08 Jul 2025 01:30:08 GMTTue, 08 Jul 2025 01:30:08 GMT60SQL璇█鏁欑▼http://www.aygfsteel.com/dongning/archive/2007/06/15/124430.html鑰佽懀鑰佽懀Fri, 15 Jun 2007 01:47:00 GMThttp://www.aygfsteel.com/dongning/archive/2007/06/15/124430.htmlhttp://www.aygfsteel.com/dongning/comments/124430.htmlhttp://www.aygfsteel.com/dongning/archive/2007/06/15/124430.html#Feedback4http://www.aygfsteel.com/dongning/comments/commentRss/124430.htmlhttp://www.aygfsteel.com/dongning/services/trackbacks/124430.html
SQL鏄粨鏋勫寲鏌ヨ璇█鐨勭緝鍐欙紙Structure Query Language錛夛紝綆鍗曠殑璇達紝SQL鏄竴縐嶅叧緋繪暟鎹簱璇█錛屽畠鍙互璁塊棶浠ラ昏緫闆嗙殑褰㈠紡鏈夊簭鍦板偍瀛樺湪鏁版嵁搴撶殑鏁版嵁錛岃繖浜涢昏緫闆嗙О涓鴻〃銆傚疄闄呬笂SQL鏄竴縐嶈綆楁満緙栫▼璇█錛屼絾瀹冩瘮浼犵粺鐨勭紪紼嬭璦錛屽錛孊ASIC錛孎ORTRAN絳夌畝鍗曠殑澶氥傚彟澶朣QL鏄叧緋繪暟鎹簱璇█錛屼簡瑙ｄ簡SQL涔熷氨鐞嗚В浜嗗叧緋繪暟鎹簱錛屽洜姝ゅ湪鏁翠釜鍏崇郴鏁版嵁搴撲綋緋諱腑SQL鏄渶鍩虹銆佷篃鏄渶閲嶈鐨勯儴鍒嗐?nbsp; 闃呰鍏ㄦ枃

鑰佽懀 2007-06-15 09:47 鍙戣〃璇勮
]]>ORACLE SQL鎬ц兘浼樺寲緋誨垪http://www.aygfsteel.com/dongning/archive/2007/06/13/123873.html鑰佽懀鑰佽懀Wed, 13 Jun 2007 07:11:00 GMThttp://www.aygfsteel.com/dongning/archive/2007/06/13/123873.htmlhttp://www.aygfsteel.com/dongning/comments/123873.htmlhttp://www.aygfsteel.com/dongning/archive/2007/06/13/123873.html#Feedback0http://www.aygfsteel.com/dongning/comments/commentRss/123873.htmlhttp://www.aygfsteel.com/dongning/services/trackbacks/123873.html
鍏抽敭瀛? ORACEL SQL Performance tuning
鍑哄 http://www.dbasupport.com

1. 閫夌敤閫傚悎鐨凮RACLE浼樺寲鍣?

ORACLE鐨勪紭鍖栧櫒鍏辨湁3縐?
a. RULE (鍩轟簬瑙勫垯) b. COST (鍩轟簬鎴愭湰) c. CHOOSE (閫夋嫨鎬?
璁劇疆緙虹渷鐨勪紭鍖栧櫒,鍙互閫氳繃瀵筰nit.ora鏂囦歡涓璒PTIMIZER_MODE鍙傛暟鐨勫悇
縐嶅０鏄?濡俁ULE,COST,CHOOSE,ALL_ROWS,FIRST_ROWS . 浣犲綋鐒朵篃鍦⊿QL鍙?
綰ф垨鏄細璇?session)綰у鍏惰繘琛岃鐩?
涓轟簡浣跨敤鍩轟簬鎴愭湰鐨勪紭鍖栧櫒(CBO, Cost-Based Optimizer) , 浣犲繀欏葷粡甯?
榪愯analyze 鍛戒護,浠ュ鍔犳暟鎹簱涓殑瀵硅薄緇熻淇℃伅(object statistics) 闃呰鍏ㄦ枃

鑰佽懀 2007-06-13 15:11 鍙戣〃璇勮
]]>鎬ц兘浼樺寲http://www.aygfsteel.com/dongning/archive/2007/06/13/123868.html鑰佽懀鑰佽懀Wed, 13 Jun 2007 06:56:00 GMThttp://www.aygfsteel.com/dongning/archive/2007/06/13/123868.htmlhttp://www.aygfsteel.com/dongning/comments/123868.htmlhttp://www.aygfsteel.com/dongning/archive/2007/06/13/123868.html#Feedback0http://www.aygfsteel.com/dongning/comments/commentRss/123868.htmlhttp://www.aygfsteel.com/dongning/services/trackbacks/123868.html搴旂敤紼嬪簭璁捐鐨勮皟鏁翠慨鏀瑰師鍒欙紱鏍規(guī)嵁涓嶅悓鐨勪笟鍔￠渶姹傦紝浠庝笉鍚岃搴﹁璁℃暟鎹簱錛屽叾璁捐鏍稿績鏄鏁版嵁鐨勮闂搷浣溿傚父瑙佺殑浼樺寲鎵嬫鏈夛細
錛?錛夊皢闀跨殑鏁版嵁鍒嗘鏀劇疆錛?
錛?錛夊敖閲忛噸澶嶅懡鍚嶇敤SQL璇彞錛屼互鍏呭垎鍒╃敤搴撻珮閫熺紦瀛橈紙Library Cache錛?
錛?錛変紭鍖朣QL璇彞錛屽噺灝戞潯浠跺垽鏂殑浣跨敤銆?
2銆佸鏁版嵁璇誨啓鐨勪紭鍖栬皟鏁?
鍙互鍒╃敤ORACLE鏈韓甯︾殑utlbstat鍜孶tlestat榪欎袱涓猄QL紼嬪簭鍖呮敹闆嗘暟鎹簱榪愯鏃剁殑涓浜涙ц兘鐘跺喌  闃呰鍏ㄦ枃

鑰佽懀 2007-06-13 14:56 鍙戣〃璇勮
]]>鏈枃浠ラ棶絳旂殑鏂瑰紡闃愯堪浜哋racle騫惰鏈嶅姟鍣ㄧ殑鐩稿叧姒傚康http://www.aygfsteel.com/dongning/archive/2007/06/13/123867.html鑰佽懀鑰佽懀Wed, 13 Jun 2007 06:53:00 GMThttp://www.aygfsteel.com/dongning/archive/2007/06/13/123867.htmlhttp://www.aygfsteel.com/dongning/comments/123867.htmlhttp://www.aygfsteel.com/dongning/archive/2007/06/13/123867.html#Feedback0http://www.aygfsteel.com/dongning/comments/commentRss/123867.htmlhttp://www.aygfsteel.com/dongning/services/trackbacks/123867.htmlOPS(Oracle Parallel Server)鍙互璁╀綅浜庝笉鍚岀郴緇熺殑澶氫釜瀹炰緥鍚屾椂璁塊棶鍚屼竴涓暟鎹簱銆傚茍琛屾湇鍔″櫒鍙互鏈夋晥鍦版彁楂樼郴緇熺殑鍙敤鎬у拰瀵瑰緋葷粺鐨勮闂ц兘錛屼絾鏄紝濡傛灉浣犵殑鏁版嵁娌℃湁鍋氬緢濂界殑鍒嗗壊錛屾ц兘鍙兘榪樹細涓嬮檷銆?
瀹夎OPS鏃訛紝澶氫釜瀹炰緥mount鍚屼竴鏁版嵁搴撴枃浠訛紝瀹炰緥闂寸殑閫氳鐢卞垎甯冨紡閿佺鐞嗗櫒錛圖LM錛夋潵綆＄悊銆傞渶瑕佹敞鎰忕殑鏄垎甯冨紡閿佺鐞嗗櫒涓庝綘鎵浣跨敤鐨勭‖浠跺拰鎿嶄綔緋葷粺鏈夌潃瀵嗗垏鐨勫叧緋匯備負浜嗙‘瀹氬涓紒鍥懼悓鏃朵慨鏀瑰悓涓鏁版嵁鐨勫疄渚嬶紝Oracle浣跨敤浜嗗崄涓悗鍙拌繘紼嬶細LCK0-LCK9錛屾潵閿佸畾鏌愪竴瀹炰緥鎵浣跨敤鐨勮祫婧愩?
OPS涓昏鐢ㄤ簬UNIX/LINUX闆嗙兢鐜涓?
  闃呰鍏ㄦ枃

鑰佽懀 2007-06-13 14:53 鍙戣〃璇勮
]]>鏌ヨ琛ㄧ┖闂?/title><link>http://www.aygfsteel.com/dongning/archive/2007/06/13/123866.html</link><dc:creator>鑰佽懀</dc:creator><author>鑰佽懀</author><pubDate>Wed, 13 Jun 2007 06:52:00 GMT</pubDate><guid>http://www.aygfsteel.com/dongning/archive/2007/06/13/123866.html</guid><wfw:comment>http://www.aygfsteel.com/dongning/comments/123866.html</wfw:comment><comments>http://www.aygfsteel.com/dongning/archive/2007/06/13/123866.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/dongning/comments/commentRss/123866.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/dongning/services/trackbacks/123866.html</trackback:ping><description><![CDATA[     鎽樿: 1銆佹煡鐪嬭〃絀洪棿鐨勫悕縐板強澶у皬 <br>select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size <br>from dba_tablespaces t, dba_data_files d <br>where t.tablespace_name = d.tablespace_name <br>group by t.tablespace_name;   <a href='http://www.aygfsteel.com/dongning/archive/2007/06/13/123866.html'>闃呰鍏ㄦ枃</a><img src ="http://www.aygfsteel.com/dongning/aggbug/123866.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/dongning/" target="_blank">鑰佽懀</a> 2007-06-13 14:52 <a href="http://www.aygfsteel.com/dongning/archive/2007/06/13/123866.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>鍦⊿TRUTS璁劇疆session鐨勮繃鏈熸椂闂?/title><link>http://www.aygfsteel.com/dongning/archive/2007/06/13/123796.html</link><dc:creator>鑰佽懀</dc:creator><author>鑰佽懀</author><pubDate>Wed, 13 Jun 2007 02:30:00 GMT</pubDate><guid>http://www.aygfsteel.com/dongning/archive/2007/06/13/123796.html</guid><wfw:comment>http://www.aygfsteel.com/dongning/comments/123796.html</wfw:comment><comments>http://www.aygfsteel.com/dongning/archive/2007/06/13/123796.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/dongning/comments/commentRss/123796.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/dongning/services/trackbacks/123796.html</trackback:ping><description><![CDATA[     鎽樿: 鍦╳eb.xml涓緗? <br> <session-config> <br> <session-timeout>20</session-timeout> <br> </session-config> <br>鍏朵腑鐨?0涓哄垎閽燂紝鑻ヨ緗負-1鐨勮瘽灝辨槸session姘鎬笉榪囨湡  <a href='http://www.aygfsteel.com/dongning/archive/2007/06/13/123796.html'>闃呰鍏ㄦ枃</a><img src ="http://www.aygfsteel.com/dongning/aggbug/123796.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/dongning/" target="_blank">鑰佽懀</a> 2007-06-13 10:30 <a href="http://www.aygfsteel.com/dongning/archive/2007/06/13/123796.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>Hibernate蹇熷叆闂?/title><link>http://www.aygfsteel.com/dongning/archive/2007/06/08/122839.html</link><dc:creator>鑰佽懀</dc:creator><author>鑰佽懀</author><pubDate>Fri, 08 Jun 2007 05:47:00 GMT</pubDate><guid>http://www.aygfsteel.com/dongning/archive/2007/06/08/122839.html</guid><wfw:comment>http://www.aygfsteel.com/dongning/comments/122839.html</wfw:comment><comments>http://www.aygfsteel.com/dongning/archive/2007/06/08/122839.html#Feedback</comments><slash:comments>2</slash:comments><wfw:commentRss>http://www.aygfsteel.com/dongning/comments/commentRss/122839.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/dongning/services/trackbacks/122839.html</trackback:ping><description><![CDATA[     鎽樿: 鍏跺疄Hibernate鏈韓鏄釜鐙珛鐨勬鏋訛紝瀹冧笉闇瑕佷換浣晈eb server鎴朼pplication server鐨勬敮鎸併傜劧鑰岋紝澶у鏁扮殑Hibernate鍏ラ棬浠嬬粛閮藉姞鍏ヤ簡寰堝闈濰ibernate鐨勪笢瑗匡紝姣斿: Tomcat, Eclipse, Log4J,Struts, XDoclet, 鐢氳嚦JBoss銆傝繖瀹規(guī)槗璁╀漢浜х敓Hibernate澶嶆潅闅炬噦鐨勮瑙ｏ紝鐗瑰埆鏄墦鍑諱簡鍒濆鑰呯殑縐瀬鎬с?<br>銆銆鍦ㄨ繖綃囨枃绔犲皢涓嶆秹鍙奅clipse, log4j, Struts, Tomcat, XDoclet錛屽拰JBoss銆傛湰鏂囩殑鐩殑鏄紨紺轟竴涓婬ibernate鐨勫畨瑁呰繃紼嬩互鍙婃渶鍩烘湰鐨勫姛鑳斤紝浠庤岀粰鍒濆鑰呬竴涓綆寰椾笉鑳藉啀浣庣殑鍏ラ棬闂ㄦ <br>  <a href='http://www.aygfsteel.com/dongning/archive/2007/06/08/122839.html'>闃呰鍏ㄦ枃</a><img src ="http://www.aygfsteel.com/dongning/aggbug/122839.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/dongning/" target="_blank">鑰佽懀</a> 2007-06-08 13:47 <a href="http://www.aygfsteel.com/dongning/archive/2007/06/08/122839.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>鎵嬩綆鐪奸珮 鍒濆鑰呭涔?fàn)Hibernate鐨勬柟娉?/title><link>http://www.aygfsteel.com/dongning/archive/2007/06/08/122837.html</link><dc:creator>鑰佽懀</dc:creator><author>鑰佽懀</author><pubDate>Fri, 08 Jun 2007 05:40:00 GMT</pubDate><guid>http://www.aygfsteel.com/dongning/archive/2007/06/08/122837.html</guid><wfw:comment>http://www.aygfsteel.com/dongning/comments/122837.html</wfw:comment><comments>http://www.aygfsteel.com/dongning/archive/2007/06/08/122837.html#Feedback</comments><slash:comments>3</slash:comments><wfw:commentRss>http://www.aygfsteel.com/dongning/comments/commentRss/122837.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/dongning/services/trackbacks/122837.html</trackback:ping><description><![CDATA[     鎽樿: Hibernate鍏ラ棬瀹規(guī)槗錛屾帉鎻＄簿閫氭垜涔熶笉鏁㈣嚜澶搞傛垜絎竴閬嶇湅Hibernate鏂囨。鐨勬椂鍊欎篃瑙夊緱寰堝悆鍔涳紝浣嗕笉鏄洜涓篐ibernate闅炬帉鎻¤屾劅鍒板悆鍔涳紝鏄洜涓篐ibernate鏂囨。澶勫閮芥槸鎸佷箙灞傝璁＄殑緇忛獙鍜屾渶浣?jīng)_疄璺點? <br>銆銆Hibernate鏂囨。鍑嗙‘鐨勬潵璇達紝緇濆ぇ閮ㄥ垎鍐呭閮藉湪璁插璞＄殑鎸佷箙灞傝璁★紝鑰屼笉鏄畝鍗曠殑Hibernate浣跨敤錛屼嬌鐢ㄩ棶棰樻煡Java doc灝卞浜嗐傛墍浠ュ涔?fàn)Hibernate錛屼富瑕佹槸鍦ㄥ涔?fàn)鎸佷箙灞傜殑璁捐妯″紡锛屽鏋滀綘鎶奌ibernate鏂囨。閮界湅瀹屼簡錛岃繕鏁村ぉ鍙細鎻愰偅浜?Hibernate鐨勯厤緗棶棰橈紝Hibernate鐨勭被璋冪敤闂錛屾垜瑙夊緱榪欐牱鐨勪漢榪樻病鏈夌湡姝ｇ殑鍏ラ棬錛岀畻鏄櫧瀛︿簡銆?<br>  <a href='http://www.aygfsteel.com/dongning/archive/2007/06/08/122837.html'>闃呰鍏ㄦ枃</a><img src ="http://www.aygfsteel.com/dongning/aggbug/122837.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/dongning/" target="_blank">鑰佽懀</a> 2007-06-08 13:40 <a href="http://www.aygfsteel.com/dongning/archive/2007/06/08/122837.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>Hibernate瓚呯駭綆浠?/title><link>http://www.aygfsteel.com/dongning/archive/2007/06/08/122834.html</link><dc:creator>鑰佽懀</dc:creator><author>鑰佽懀</author><pubDate>Fri, 08 Jun 2007 05:33:00 GMT</pubDate><guid>http://www.aygfsteel.com/dongning/archive/2007/06/08/122834.html</guid><wfw:comment>http://www.aygfsteel.com/dongning/comments/122834.html</wfw:comment><comments>http://www.aygfsteel.com/dongning/archive/2007/06/08/122834.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/dongning/comments/commentRss/122834.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/dongning/services/trackbacks/122834.html</trackback:ping><description><![CDATA[     鎽樿: Hibernate欏懼悕鎬濅箟鍐湢鐨勬剰鎬濓紝鐩鎬俊瀹冪殑鍒涢犺呯殑鐢ㄦ剰鍦ㄤ簬鐢ㄨ繖涓伐鍏峰皢鏁版嵁搴撹繛鎺ユ寔涔呭寲灞傚啲鐪狅紝鍏充簬Hibernate緗戜笂浜夎寰堝錛屾湁浜鴻鍏朵負宸ュ叿錛屾湁浜鴻鍏朵負妗嗘灦錛屾垜鐩鎬俊涓涓漢鏈変竴涓漢鐞嗚В闂鐨勮搴︼紝鍙澶勭悊闂鐨勬柟娉曟紜氨鍙互浜嗐侶ibernate鏄噰鐢∣RM鏄犲皠鏈哄埗鐨勬寔涔呭眰寮鍙戝伐鍏鳳紝瀹冩槸JAVA搴旂敤鍜屽叧緋繪暟鎹簱涔嬪墠鐨勬ˉ姊侊紝璐熻矗JAVA瀵硅薄鍜屽叧緋繪暟鎹箣闂寸殑鏄犲皠銆傚唴閮ㄥ皝瑁呬簡JDBC璁塊棶鏁版嵁搴撶殑鎿嶄綔錛屽悜涓婂眰搴旂敤鎻愪緵浜嗛潰鍚戝璞＄殑鏁版嵁搴撹闂瓵PI錛屽湪JAVA搴旂敤涓嬌鐢ㄥ埌Hibernate鍖呭惈濡備笅姝ラ銆?<br>  <a href='http://www.aygfsteel.com/dongning/archive/2007/06/08/122834.html'>闃呰鍏ㄦ枃</a><img src ="http://www.aygfsteel.com/dongning/aggbug/122834.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/dongning/" target="_blank">鑰佽懀</a> 2007-06-08 13:33 <a href="http://www.aygfsteel.com/dongning/archive/2007/06/08/122834.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <footer> <div class="friendship-link"> <a href="http://www.aygfsteel.com/" title="狠狠久久亚洲欧美专区_中文字幕亚洲综合久久202_国产精品亚洲第五区在线_日本免费网站视频">狠狠久久亚洲欧美专区_中文字幕亚洲综合久久202_国产精品亚洲第五区在线_日本免费网站视频</a> </div> </footer> 主站蜘蛛池模板： <a href="http://" target="_blank">会理县</a>| <a href="http://" target="_blank">苏尼特左旗</a>| <a href="http://" target="_blank">安平县</a>| <a href="http://" target="_blank">松溪县</a>| <a href="http://" target="_blank">丰城市</a>| <a href="http://" target="_blank">平邑县</a>| <a href="http://" target="_blank">拜城县</a>| <a href="http://" target="_blank">林口县</a>| <a href="http://" target="_blank">金昌市</a>| <a href="http://" target="_blank">临沭县</a>| <a href="http://" target="_blank">重庆市</a>| <a href="http://" target="_blank">鄂温</a>| <a href="http://" target="_blank">浮梁县</a>| <a href="http://" target="_blank">大新县</a>| <a href="http://" target="_blank">罗定市</a>| <a href="http://" target="_blank">罗平县</a>| <a href="http://" target="_blank">毕节市</a>| <a href="http://" target="_blank">泾源县</a>| <a href="http://" target="_blank">勐海县</a>| <a href="http://" target="_blank">西畴县</a>| <a href="http://" target="_blank">卢氏县</a>| <a href="http://" target="_blank">铁岭县</a>| <a href="http://" target="_blank">定襄县</a>| <a href="http://" target="_blank">南和县</a>| <a href="http://" target="_blank">荥经县</a>| <a href="http://" target="_blank">奉新县</a>| <a href="http://" target="_blank">北安市</a>| <a href="http://" target="_blank">南木林县</a>| <a href="http://" target="_blank">贵阳市</a>| <a href="http://" target="_blank">富裕县</a>| <a href="http://" target="_blank">楚雄市</a>| <a href="http://" target="_blank">新巴尔虎右旗</a>| <a href="http://" target="_blank">泰和县</a>| <a href="http://" target="_blank">商洛市</a>| <a href="http://" target="_blank">敦化市</a>| <a href="http://" target="_blank">梅州市</a>| <a href="http://" target="_blank">渭南市</a>| <a href="http://" target="_blank">广河县</a>| <a href="http://" target="_blank">土默特右旗</a>| <a href="http://" target="_blank">永安市</a>| <a href="http://" target="_blank">安仁县</a>| <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body>