锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲经典在线观看,精品亚洲成AV人在线观看,337P日本欧洲亚洲大胆精品http://m.tkk7.com/zhanglijun33/category/17944.html娣鋒矊錛屽椒寰紝绔嬪織錛岃搫鍔?..zh-cnThu, 06 Aug 2015 10:49:53 GMTThu, 06 Aug 2015 10:49:53 GMT60mysql瑙﹀彂鍣細姣忓ぉ澧炲姞涓涓殢鏈烘暟銆?/title><link>http://m.tkk7.com/zhanglijun33/archive/2015/08/06/426624.html</link><dc:creator>鏅鴻呮棤鐤?/dc:creator><author>鏅鴻呮棤鐤?/author><pubDate>Thu, 06 Aug 2015 01:26:00 GMT</pubDate><guid>http://m.tkk7.com/zhanglijun33/archive/2015/08/06/426624.html</guid><wfw:comment>http://m.tkk7.com/zhanglijun33/comments/426624.html</wfw:comment><comments>http://m.tkk7.com/zhanglijun33/archive/2015/08/06/426624.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.tkk7.com/zhanglijun33/comments/commentRss/426624.html</wfw:commentRss><trackback:ping>http://m.tkk7.com/zhanglijun33/services/trackbacks/426624.html</trackback:ping><description><![CDATA[     鎽樿: mysql瑙﹀彂鍣紝5.6鐗堛?nbsp; <a href='http://m.tkk7.com/zhanglijun33/archive/2015/08/06/426624.html'>闃呰鍏ㄦ枃</a><img src ="http://m.tkk7.com/zhanglijun33/aggbug/426624.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/zhanglijun33/" target="_blank">鏅鴻呮棤鐤?/a> 2015-08-06 09:26 <a href="http://m.tkk7.com/zhanglijun33/archive/2015/08/06/426624.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>姝e父鐨剆ql錛堝甫涓枃鍙傛暟錛夛紝鍦╩ysql-front閲屽彲浠ユ煡鍑烘暟鎹紝鍦ㄧ▼搴忛噷鍗存煡涓嶅嚭鏉?/title><link>http://m.tkk7.com/zhanglijun33/archive/2015/07/08/426098.html</link><dc:creator>鏅鴻呮棤鐤?/dc:creator><author>鏅鴻呮棤鐤?/author><pubDate>Wed, 08 Jul 2015 10:23:00 GMT</pubDate><guid>http://m.tkk7.com/zhanglijun33/archive/2015/07/08/426098.html</guid><wfw:comment>http://m.tkk7.com/zhanglijun33/comments/426098.html</wfw:comment><comments>http://m.tkk7.com/zhanglijun33/archive/2015/07/08/426098.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://m.tkk7.com/zhanglijun33/comments/commentRss/426098.html</wfw:commentRss><trackback:ping>http://m.tkk7.com/zhanglijun33/services/trackbacks/426098.html</trackback:ping><description><![CDATA[<div><span style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">鍘熷洜錛氫腑鏂囧弬鏁板瓧絎︾紪鐮佹湁闂錛屽湪紼嬪簭閲岃皟璇曠殑鏃跺欒櫧鐒朵笉鏄貢鐮侊紝浣嗘暟鎹簱渚濇棫涓嶈璇嗐傝繖闇瑕佸湪jdbc.mysql.url閲屾寚瀹氭暟鎹簱浣跨敤鐨勫瓧絎︾紪鐮侊細utf-8.</span><br style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;" /><span style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">jdbc.properties閲?/span><br style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;" /><span style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">mysql.jdbc.url=jdbc:mysql://192.168.1.246:3306/wxb_site1?useUnicode=true&characterEncoding=utf-8</span><br style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;" /><span style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">jndi鐨勫啓娉曪細 context.xml閲岀殑鍐欐硶錛?lt;Resource name="jndi/wxb_site"  auth="Container" </span><br style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;" /><span style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">      type="javax.sql.DataSource" username="root" password="root"   </span><br style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;" /><span style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">      driverClassName="com.mysql.jdbc.Driver"</span><span style="font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; color: #ff0000;"> url="jdbc:mysql://192.168.1.246:3306/wxb_site1?useUnicode=true&amp;characterEncoding=utf-8"<br /></span><span style="color: #000000; font-family: verdana, 'courier new'; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">   maxActive="100" maxIdle="10" maxWait="-1"/></span></div><img src ="http://m.tkk7.com/zhanglijun33/aggbug/426098.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/zhanglijun33/" target="_blank">鏅鴻呮棤鐤?/a> 2015-07-08 18:23 <a href="http://m.tkk7.com/zhanglijun33/archive/2015/07/08/426098.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>mysql鐩稿叧http://m.tkk7.com/zhanglijun33/archive/2007/08/19/mysql_Procedure.html鏅鴻呮棤鐤?/dc:creator>鏅鴻呮棤鐤?/author>Sun, 19 Aug 2007 11:17:00 GMThttp://m.tkk7.com/zhanglijun33/archive/2007/08/19/mysql_Procedure.htmlhttp://m.tkk7.com/zhanglijun33/comments/137966.htmlhttp://m.tkk7.com/zhanglijun33/archive/2007/08/19/mysql_Procedure.html#Feedback1http://m.tkk7.com/zhanglijun33/comments/commentRss/137966.htmlhttp://m.tkk7.com/zhanglijun33/services/trackbacks/137966.html闃呰鍏ㄦ枃

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ORCALE鐨勪嬌鐢ㄧ浉鍏?/title><link>http://m.tkk7.com/zhanglijun33/archive/2006/10/27/aboutOrcale.html</link><dc:creator>鏅鴻呮棤鐤?/dc:creator><author>鏅鴻呮棤鐤?/author><pubDate>Fri, 27 Oct 2006 02:40:00 GMT</pubDate><guid>http://m.tkk7.com/zhanglijun33/archive/2006/10/27/aboutOrcale.html</guid><wfw:comment>http://m.tkk7.com/zhanglijun33/comments/77555.html</wfw:comment><comments>http://m.tkk7.com/zhanglijun33/archive/2006/10/27/aboutOrcale.html#Feedback</comments><slash:comments>6</slash:comments><wfw:commentRss>http://m.tkk7.com/zhanglijun33/comments/commentRss/77555.html</wfw:commentRss><trackback:ping>http://m.tkk7.com/zhanglijun33/services/trackbacks/77555.html</trackback:ping><description><![CDATA[ <p> <span id="adcontent"> <font face="Arial" size="2">蹇冨緱鍏變韓錛歄racle緇忛獙鎶宸ч泦閿?/font> </span> </p> <span id="adcontent"> </span> <p> <font face="Arial" size="2">1錛庡垹闄よ〃絀洪棿</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">DROP TABLESPACE TableSpaceName [INCLUDING CONTENTS [AND DATAFILES]]<br /><br />2錛庡垹闄ょ敤鎴?/font> </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">DROP USER User_Name CASCADE</font> </font> </p> <p> <font face="Arial" size="2">3錛庡垹闄よ〃鐨勬敞鎰忎簨欏?/font> </p> <p> <font face="Arial" size="2">鍦ㄥ垹闄や竴涓〃涓殑鍏ㄩ儴鏁版嵁鏃訛紝欏諱嬌鐢═RUNCATE TABLE 琛ㄥ悕;鍥犱負鐢―ROP TABLE錛孌ELETE * FROM 琛ㄥ悕鏃訛紝TABLESPACE琛ㄧ┖闂磋琛ㄧ殑鍗犵敤絀洪棿騫舵湭閲婃斁錛屽弽澶嶅嚑嬈ROP錛孌ELETE鎿嶄綔鍚庯紝璇ABLESPACE涓婄櫨鍏嗙殑絀洪棿灝辮鑰楀厜浜嗐?br /><br /></font> </p> <p> <font face="Arial" size="2">4錛巋aving瀛愬彞鐨勭敤娉?/font> </p> <p> <font face="Arial" size="2">having瀛愬彞瀵筭roup by瀛愬彞鎵紜畾鐨勮緇勮繘琛屾帶鍒訛紝having瀛愬彞鏉′歡涓彧鍏佽娑夊強甯擱噺,鑱氱粍鍑芥暟鎴杇roup by 瀛愬彞涓殑鍒椼?/font> </p> <p> <font face="Arial" size="2">5錛庡閮ㄨ仈鎺?+"鐨勭敤娉?/font> </p> <p> <font face="Arial" size="2">澶栭儴鑱旀帴"+"鎸夊叾鍦?="鐨勫乏杈規垨鍙寵竟鍒嗗乏鑱旀帴鍜屽彸鑱旀帴.鑻ヤ笉甯?+"榪愮畻絎︾殑琛ㄤ腑鐨勪竴涓涓嶇洿鎺ュ尮閰嶄簬甯?+"棰勭畻絎︾殑琛ㄤ腑鐨勪換浣曡,鍒欏墠鑰呯殑琛屼笌鍚庤呬腑鐨勪竴涓┖琛岀浉鍖歸厤騫惰榪斿洖.鑻ヤ簩鑰呭潎涓嶅甫鈥?鈥?鍒欎簩鑰呬腑鏃犳硶鍖歸厤鐨勫潎琚繑鍥?鍒╃敤澶栭儴鑱旀帴"+",鍙互鏇夸唬鏁堢巼鍗佸垎浣庝笅鐨?not in 榪愮畻,澶уぇ鎻愰珮榪愯閫熷害.渚嬪,涓嬮潰榪欐潯鍛戒護鎵ц璧鋒潵寰堟參 </font> </p> <p> <font face="Arial" size="2">鐢ㄥ鑱旀帴鎻愰珮琛ㄨ繛鎺ョ殑鏌ヨ閫熷害 </font> </p> <p> <font face="Arial" size="2">鍦ㄤ綔琛ㄨ繛鎺?甯哥敤浜庤鍥?鏃訛紝甯鎬嬌鐢ㄤ互涓嬫柟娉曟潵鏌ヨ鏁版嵁: </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SELECT PAY_NO, PROJECT_NAME <br />FROM A <br />WHERE A.PAY_NO NOT IN (SELECT PAY_ <br />NO FROM B WHERE VALUE >=120000); </font> </font> </p> <p> <font face="Arial" size="2">---- 浣嗘槸鑻ヨ〃A鏈?0000鏉¤褰曪紝琛˙鏈?0000鏉¤褰曪紝鍒欒鐢ㄦ帀30鍒嗛挓鎵嶈兘鏌ュ畬錛屼富瑕佸洜涓篘OT IN瑕佽繘 琛屼竴鏉′竴鏉$殑姣旇緝錛屽叡闇瑕?0000*10000嬈℃瘮杈冨悗錛屾墠鑳藉緱鍒扮粨鏋溿傝鐢ㄥ鑱旀帴鍚庯紝鍙互緙╃煭鍒?鍒嗗乏鍙崇殑鏃墮棿: </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SELECT PAY_NO,PROJECT_NAME<br />FROM A,B <br />WHERE A.PAY_NO=B.PAY_NO(+) <br />AND B.PAY_NO IS NULL <br />AND B.VALUE >=12000; </font> </font> </p> <p> <font face="Arial" size="2">6錛巗et transaction鍛戒護鐨勭敤娉?</font> </p> <p> <font face="Arial" size="2">鍦ㄦ墽琛屽ぇ浜嬪姟鏃?鏈夋椂oracle浼氭姤鍑哄涓嬬殑閿欒: </font> </p> <p> <font face="Arial" size="2">ORA-01555:snapshot too old (rollback segment too small) </font> </p> <p> <font face="Arial" size="2">銆銆榪欒鏄巓racle緇欐浜嬪姟闅忔満鍒嗛厤鐨勫洖婊氭澶皬浜?榪欐椂鍙互涓哄畠鎸囧畾涓涓凍澶熷ぇ鐨勫洖婊氭,浠ョ‘淇濊繖涓簨鍔$殑鎴愬姛鎵ц.渚嬪 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">set transaction use rollback segment roll_abc; <br />delete from table_name where ... <br />commit; </font> </font> </p> <p> <font face="Arial" size="2">銆銆鍥炴粴孌祌oll_abc琚寚瀹氱粰榪欎釜delete浜嬪姟,commit鍛戒護鍒欏湪浜嬪姟緇撴潫涔嬪悗鍙栨秷浜嗗洖婊氭鐨勬寚瀹? <br /><br /></font> </p> <p> <font face="Arial" size="2">7錛庢暟鎹簱閲嶅緩搴旀敞鎰忕殑闂 </font> </p> <p> <font face="Arial" size="2">銆銆鍦ㄥ埄鐢╥mport榪涜鏁版嵁搴撻噸寤鴻繃紼嬩腑,鏈変簺瑙嗗浘鍙兘浼氬甫鏉ラ棶棰?鍥犱負緇撴瀯杈撳叆鐨勯『搴忓彲鑳介犳垚瑙嗗浘鐨勮緭鍏ュ厛浜庡畠浣庡眰嬈¤〃鐨勮緭鍏?榪欐牱寤虹珛瑙嗗浘灝變細澶辮觸.瑕佽В鍐寵繖涓闂,鍙噰鍙栧垎涓ゆ璧扮殑鏂規硶:棣栧厛杈撳叆緇撴瀯,鐒跺悗杈撳叆鏁版嵁.鍛戒護涓句緥濡備笅 (uesrname:jfcl,password:hfjf,host sting:ora1,鏁版嵁鏂囦歡:expdata.dmp): </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">imp jfcl/hfjf@ora1 file=empdata.dmp rows=N <br />imp jfcl/hfjf@ora1 file=empdata.dmp full=Y buffer=64000 <br />commit=Y ignore=Y </font> </font> </p> <p> <font face="Arial" size="2">銆銆絎竴鏉″懡浠よ緭鍏ユ墍鏈夋暟鎹簱緇撴瀯,浣嗘棤璁板綍.絎簩嬈¤緭鍏ョ粨鏋勫拰鏁版嵁,64000瀛楄妭鎻愪氦涓嬈?ignore=Y閫夐」淇濊瘉絎簩嬈¤緭鍏ユ棦浣垮璞″瓨鍦ㄧ殑鎯呭喌涓嬩篃鑳芥垚鍔? </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select a.empno from emp a where a.empno not in (select empno from emp1 where job=鈥橲ALE鈥?; </font> </font> </p> <p> <font face="Arial" size="2">銆銆鍊樿嫢鍒╃敤澶栭儴鑱旀帴,鏀瑰啓鍛戒護濡備笅: </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select a.empno from emp a ,emp1 b <br />where a.empno=b.empno(+) <br />and b.empno is null <br />and b.job=鈥橲ALE鈥? </font> </font> </p> <p> <font face="Arial" size="2">鍙互鍙戠幇,榪愯閫熷害鏄庢樉鎻愰珮. </font> </p> <p> <font face="Arial" size="2">8錛庝粠宸茬煡琛ㄦ柊寤哄彟涓涓〃錛?/font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">CREATE TABLE b <br />AS SELECT * (鍙互鏄〃a涓殑鍑犲垪) <br />FROM a <br />WHERE a.column = ...; </font> </font> </p> <p> <font face="Arial" size="2">9錛庢煡鎵俱佸垹闄ら噸澶嶈褰? </font> </p> <p> <font face="Arial" size="2">娉曚竴: 鐢℅roup by璇彞 姝ゆ煡鎵懼緢蹇殑</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select count(num), max(name) from student --鏌ユ壘琛ㄤ腑num鍒楅噸澶嶇殑錛屽垪鍑洪噸澶嶇殑璁板綍鏁幫紝騫跺垪鍑轟粬鐨刵ame灞炴?br />group by num <br />having count(num) >1 --鎸塶um鍒嗙粍鍚庢壘鍑鴻〃涓璶um鍒楅噸澶嶏紝鍗沖嚭鐜版鏁板ぇ浜庝竴嬈?br />delete from student(涓婇潰Select鐨? </font> </font> </p> <p> <font face="Arial" size="2">榪欐牱鐨勮瘽灝辨妸鎵鏈夐噸澶嶇殑閮藉垹闄や簡銆?----鎱庨噸 </font> </p> <p> <font face="Arial" size="2">娉曚簩:褰撹〃姣旇緝澶?渚嬪10涓囨潯浠ヤ笂)鏃?榪欎釜鏂規硶鐨勬晥鐜囦箣宸護浜烘棤娉曞繊鍙?闇瑕佸彟鎯沖姙娉? </font> </p> <p> <font face="Arial" size="2">---- 鎵ц涓嬮潰SQL璇彞鍚庡氨鍙互鏄劇ず鎵鏈塂RAWING鍜孌SNO鐩稿悓涓旈噸澶嶇殑璁板綍 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SELECT * FROM EM5_PIPE_PREFAB <br />WHERE ROWID!=(SELECT MAX(ROWID) FROM EM5_PIPE_PREFAB D --D鐩稿綋浜嶧irst,Second <br />WHERE EM5_PIPE_PREFAB.DRAWING=D.DRAWING AND <br />EM5_PIPE_PREFAB.DSNO=D.DSNO); </font> </font> </p> <p> <font face="Arial" size="2">---- 鎵ц涓嬮潰SQL璇彞鍚庡氨鍙互鍒櫎鎵鏈塂RAWING鍜孌SNO鐩稿悓涓旈噸澶嶇殑璁板綍 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">DELETE FROM EM5_PIPE_PREFAB <br />WHERE ROWID!=(SELECT MAX(ROWID) FROM EM5_PIPE_PREFAB D <br />WHERE EM5_PIPE_PREFAB.DRAWING=D.DRAWING AND <br />EM5_PIPE_PREFAB.DSNO=D.DSNO); <br /><br /></font> </font> </p> <p> <font face="Arial" size="2">10錛庤繑鍥炶〃涓璠N錛孧]鏉¤褰曪細 </font> </p> <p> <br /> <font face="Arial" size="2">鍙栧緱鏌愬垪涓N澶х殑琛?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select column_name from <br />(select table_name.*,dense_rank() over (order by column desc) rank from table_name) <br />where rank = &N錛?</font> </font> </p> <p> <font face="Arial" size="2">銆鍋囧瑕佽繑鍥炲墠5鏉¤褰曪細 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">銆銆select * from tablename where rownum<6;(鎴栨槸rownum <= 5 鎴栨槸rownum != 6) </font> </font> </p> <p> <font face="Arial" size="2">鍋囧瑕佽繑鍥炵5-9鏉¤褰曪細 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select * from tablename <br />where 鈥?<br />and rownum<10 <br />minus <br />select * from tablename <br />where 鈥?<br />and rownum<5 <br />order by name </font> </font> </p> <p> <font face="Arial" size="2">閫夊嚭緇撴灉鍚庣敤name鎺掑簭鏄劇ず緇撴灉銆?鍏堥夊啀鎺掑簭) </font> </p> <p> <font face="Arial" size="2">娉ㄦ剰錛氬彧鑳界敤浠ヤ笂絎﹀彿(<銆?lt;=銆?=)銆?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select * from tablename where rownum != 10;榪斿洖鐨勬槸鍓嶏紮鏉¤褰曘?</font> </font> </p> <p> <font face="Arial" size="2">涓嶈兘鐢細>,>=,=,Between...and銆傜敱浜巖ownum鏄竴涓繪槸浠?寮濮嬬殑浼垪錛孫racle 璁や負榪欑鏉′歡 涓嶆垚绔嬶紝鏌ヤ笉鍒拌褰? </font> </p> <p> <font face="Arial" size="2">鍙﹀錛岃繖涓柟娉曟洿蹇細 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select * from ( <br />select rownum r,a from yourtable <br />where rownum <= 20 <br />order by name ) <br />where r > 10 </font> </font> </p> <p> <font face="Arial" size="2">榪欐牱鍙栧嚭絎?1-20鏉¤褰?(鍏堥夊啀鎺掑簭鍐嶉? </font> </p> <p> <font face="Arial" size="2">瑕佸厛鎺掑簭鍐嶉夊垯欏葷敤select宓屽錛氬唴灞傛帓搴忓灞傞夈?</font> </p> <p> <font face="Arial" size="2">rownum鏄殢鐫緇撴灉闆嗙敓鎴愮殑錛屼竴鏃︾敓鎴愶紝灝變笉浼氬彉鍖栦簡錛涘悓鏃?鐢熸垚鐨勭粨鏋滄槸渚濇閫掑姞鐨勶紝娌℃湁1灝辨案榪滀笉浼氭湁2! </font> </p> <p> <font face="Arial" size="2">rownum 鏄湪 鏌ヨ闆嗗悎浜х敓鐨勮繃紼嬩腑浜х敓鐨勪吉鍒楋紝騫朵笖濡傛灉where鏉′歡涓瓨鍦?rownum 鏉′歡鐨勮瘽錛屽垯: </font> </p> <p> <font face="Arial" size="2">1錛?鍋囧 鍒ゅ畾鏉′歡鏄父閲忥紝鍒欙細 </font> </p> <p> <font face="Arial" size="2">鍙兘 rownum = 1, <= 澶т簬1 鐨勮嚜鐒舵暟錛?= 澶т簬1 鐨勬暟鏄病鏈夌粨鏋滅殑錛?澶т簬涓涓暟涔熸槸娌℃湁緇撴灉鐨?</font> </p> <p> <font face="Arial" size="2">鍗?褰撳嚭鐜頒竴涓?rownum 涓嶆弧瓚蟲潯浠剁殑鏃跺欏垯 鏌ヨ緇撴潫 銆銆this is stop key! </font> </p> <p> <font face="Arial" size="2">2: 褰撳垽瀹氬間笉鏄父閲忕殑鏃跺?</font> </p> <p> <font face="Arial" size="2">鑻ユ潯浠舵槸 = var , 鍒欏彧鏈夊綋 var 涓? 鐨勬椂鍊欐墠婊¤凍鏉′歡錛岃繖涓椂鍊欎笉瀛樺湪 stop key ,蹇呴』榪涜 full scan ,瀵規瘡涓弧瓚沖叾浠杦here鏉′歡鐨勬暟鎹繘琛屽垽瀹?</font> </p> <p> <font face="Arial" size="2">閫夊嚭涓琛屽悗鎵嶈兘鍘婚塺ownum=2鐨勮鈥︹?<br /><br /></font> </p> <p> <font face="Arial" size="2">11錛庡揩閫熺紪璇戞墍鏈夎鍥?</font> </p> <p> <br /> <font face="Arial" size="2">---- 褰撳湪鎶婃暟鎹簱鍊掑叆鍒版柊鐨勬湇鍔″櫒涓婂悗(鏁版嵁搴撻噸寤?錛岄渶瑕佸皢瑙嗗浘閲嶆柊緙栬瘧涓閬嶏紝鍥犱負璇ヨ〃絀洪棿瑙嗗浘鍒板叾瀹冭〃絀洪棿鐨勮〃鐨勮繛鎺ヤ細鍑虹幇闂錛屽彲浠ュ埄鐢≒L/SQL鐨勮璦鐗規э紝蹇熺紪璇戙?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SQL >SPOOL ON.SQL <br />SQL >SELECT 鈥楢LTER VIEW 鈥榺|TNAME||鈥?<br />COMPILE;鈥?FROM TAB; <br />SQL >SPOOL OFF </font> </font> </p> <p> <font face="Arial" size="2">鐒跺悗鎵цON.SQL鍗沖彲銆?</font> </p> <p> <font face="Arial" size="2">SQL >@ON.SQL </font> </p> <p> <font face="Arial" size="2">褰撶劧錛屾巿鏉冨拰鍒涘緩鍚屼箟璇嶄篃鍙互蹇熻繘琛岋紝濡傦細 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SQL >SELECT 鈥楪RANT SELECT ON 鈥?br />||TNAME||鈥?TO USERNAME;鈥?FROM TAB; <br />SQL >SELECT 鈥楥REATE SYNONYM <br />鈥榺|TNAME||鈥?FOR USERNAME.鈥檤|TNAME||鈥?鈥?FROM TAB; </font> </font> </p> <p> <font face="Arial" size="2">12錛庤鍐欐枃鏈瀷鎿嶄綔緋葷粺鏂囦歡</font> </p> <p> <font face="Arial" size="2">---- 鍦≒L/SQL 3.3浠ヤ笂鐨勭増鏈腑錛孶TL_FILE鍖呭厑璁哥敤鎴烽氳繃PL/SQL璇誨啓鎿嶄綔緋葷粺鏂囦歡銆傚涓嬶細 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">DECALRE <br />FILE_HANDLE UTL_FILE.FILE_TYPE; <br />BEGIN <br />FILE_HANDLE:=UTL_FILE.FOPEN( <br />鈥楥:\鈥?鈥橳EST.TXT鈥?鈥橝鈥?; <br />UTL_FILE.PUT_LINE(FILE_HANDLE,鈥?br />HELLO,IT鈥橲 A TEST TXT FILE鈥?; <br />UTL_FILE.FCLOSE(FILE_HANDLE); <br />END; </font> </font> </p> <p> <font face="Arial" size="2">13錛庡湪鏁版嵁搴撹Е鍙戝櫒涓嬌鐢ㄥ垪鐨勬柊鍊間笌鏃у?</font> </p> <p> <font face="Arial" size="2">---- 鍦ㄦ暟鎹簱瑙﹀彂鍣ㄤ腑鍑犱箮鎬繪槸瑕佷嬌鐢ㄨЕ鍙戝櫒鍩鴻〃鐨勫垪鍊鹼紝濡傛灉鏌愭潯璇彞闇瑕佹煇鍒椾慨鏀瑰墠鐨勫鹼紝浣跨敤:OLD灝卞彲浠ヤ簡錛屼嬌鐢ㄦ煇鍒椾慨鏀瑰悗鐨勬柊鍊鹼紝鐢?NEW灝卞彲浠ヤ簡銆傚:OLD.DEPT_NO,:NEW.DEPT_NO銆?</font> </p> <p> <font face="Arial" size="2">14錛庢暟鎹簱鏂囦歡鐨勭Щ鍔ㄦ柟娉?</font> </p> <p> <font face="Arial" size="2">褰撴兂灝嗘暟鎹簱鏂囦歡縐誨姩鍒板彟澶栦竴涓洰褰曚笅鏃訛紝鍙互鐢ˋLTER DATABASE鍛戒護鏉ョЩ鍔?姣擜LTER TABLESPACE閫傜敤鎬у己)錛?</font> </p> <p> <font face="Arial" size="2">1. 浣跨敤SERVER MANAGER鍏抽棴瀹炰緥. </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SVRMGR > connect internal; <br />SVRMGR > shutdown; <br />SVRMGR >exit; </font> </font> </p> <p> <font face="Arial" size="2">2. 浣跨敤鎿嶄綔緋葷粺鍛戒護鏉ョЩ鍔ㄦ暟鎹簱鏂囦歡浣嶇疆(鍋囪榪欓噷鎿嶄綔緋葷粺涓篠OLARIS 2.6). 鍦║NIX涓敤 mv鍛戒護鍙互鎶婃枃浠剁Щ鍔ㄥ埌鏂扮殑浣嶇疆錛?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">#mv /ora13/orarun/document.dbf /ora12/orarun </font> </font> </p> <p> <font face="Arial" size="2">3. 瑁呰澆鏁版嵁搴撳茍鐢╝lter database鍛戒護鏉ユ敼鍙樻暟鎹簱涓殑鏂囦歡鍚? </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SVRMGR > connect internal; <br />SVRMGR > startup mount RUN73; <br />SVRMGR > alter database rename file <br />> 鈥? ora13/orarun/document.dbf鈥?<br />> 鈥? ora12/orarun/document.dbf鈥? </font> </font> </p> <p> <font face="Arial" size="2">4. 鍚姩瀹炰緥. </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">SVRMGR > alter database open; <br /><br /></font> </font> </p> <p> <font face="Arial" size="2">15錛庤繛鎺ユ煡璇㈢粨鏋滐細 </font> </p> <p> <font face="Arial" size="2">琛╝ 鍒?a1 a2 </font> </p> <p> <font face="Arial" size="2">璁板綍 1 a </font> </p> <p> <font face="Arial" size="2">1 b </font> </p> <p> <font face="Arial" size="2">2 x </font> </p> <p> <font face="Arial" size="2">2 y </font> </p> <p> <font face="Arial" size="2">2 z </font> </p> <p> <font face="Arial" size="2">鐢╯elect鑳介夋垚浠ヤ笅緇撴灉: </font> </p> <p> <font face="Arial" size="2">1 ab </font> </p> <p> <font face="Arial" size="2">2 xyz </font> </p> <p> <font face="Arial" size="2">涓嬮潰鏈変袱涓緥瀛愶細 </font> </p> <p> <font face="Arial" size="2">1.浣跨敤pl/sql浠g爜瀹炵幇錛屼絾瑕佹眰浣犵粍鍚堝悗鐨勯暱搴︿笉鑳借秴鍑簅racle varchar2闀垮害鐨勯檺鍒?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">create or replace type strings_table is table of varchar2(20); <br />/ <br />create or replace function merge (pv in strings_table) return varchar2 <br />is <br />ls varchar2(4000); <br />begin <br />for i in 1..pv.count loop <br />ls := ls || pv(i); <br />end loop; <br />return ls; <br />end; <br />/ <br />create table t (id number,name varchar2(10)); <br />insert into t values(1,'Joan'); <br />insert into t values(1,'Jack'); <br />insert into t values(1,'Tom'); <br />insert into t values(2,'Rose'); <br />insert into t values(2,'Jenny'); <br />column names format a80; <br />select t0.id,merge(cast(multiset(select name from t where t.id = t0.id) as strings_table)) names <br />from (select distinct id from t) t0; <br />drop type strings_table; <br />drop function merge; <br />drop table t; </font> </font> </p> <p> <font face="Arial" size="2">2.綰補鐢╯ql錛?</font> </p> <p> <font face="Arial" size="2">琛╠ept, emp </font> </p> <p> <font face="Arial" size="2">瑕佸緱鍒板涓嬬粨鏋?</font> </p> <p> <font face="Arial" size="2">deptno, dname, employees </font> </p> <p> <font face="Arial" size="2">--------------------------------- </font> </p> <p> <font face="Arial" size="2">10, accounting, clark;king;miller <br />20, research, smith;adams;ford;scott;jones <br />30, sales, allen;blake;martin;james;turners </font> </p> <p> <font face="Arial" size="2">姣忎釜dept鐨別mployee涓茶搗鏉ヤ綔涓轟竴鏉¤褰曡繑鍥?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">This example uses a max of 6, and would need more cut n pasting to do more than that錛?<br />SQL> select deptno, dname, emps <br />2 from ( <br />3 select d.deptno, d.dname, rtrim(e.ename ||', '|| <br />4 lead(e.ename,1) over (partition by d.deptno <br />5 order by e.ename) ||', '|| <br />6 lead(e.ename,2) over (partition by d.deptno <br />7 order by e.ename) ||', '|| <br />8 lead(e.ename,3) over (partition by d.deptno <br />9 order by e.ename) ||', '|| <br />10 lead(e.ename,4) over (partition by d.deptno <br />11 order by e.ename) ||', '|| <br />12 lead(e.ename,5) over (partition by d.deptno <br />13 order by e.ename),', ') emps, <br />14 row_number () over (partition by d.deptno <br />15 order by e.ename) x <br />16 from emp e, dept d <br />17 where d.deptno = e.deptno <br />18 ) <br />19 where x = 1 <br />20 / <br /><br />DEPTNO DNAME EMPS </font> </font> </p> <p> <font face="Arial" size="2">------- ----------- ------------------------------------------ </font> </p> <p> <font face="Arial" size="2">10 ACCOUNTING CLARK, KING, MILLER </font> </p> <p> <font face="Arial" size="2">20 RESEARCH ADAMS, FORD, JONES, ROONEY, SCOTT, SMITH </font> </p> <p> <font face="Arial" size="2">30 SALES ALLEN, BLAKE, JAMES, MARTIN, TURNER, WARD <br /><br /></font> </p> <p> <font face="Arial" size="2">16錛庡湪Oracle涓緩涓涓紪鍙蜂細鑷姩澧炲姞鐨勫瓧孌?浠ュ埄浜庢煡璇?</font> </p> <p> <font face="Arial" size="2">1銆佸緩绔嬪簭鍒楋細 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">CREATE SEQUENCE checkup_no_seq <br />NOCYCLE <br />MAXVALUE 9999999999 <br />START WITH 2; </font> </font> </p> <p> <font face="Arial" size="2">2銆佸緩绔嬭Е鍙戝櫒錛?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">CREATE OR REPLACE TRIGGER set_checkup_no <br />BEFORE INSERT ON checkup_history <br />FOR EACH ROW <br />DECLARE <br />next_checkup_no NUMBER; <br />BEGIN <br />--Get the next checkup number from the sequence <br />SELECT checkup_no_seq.NEXTVAL <br />INTO next_checkup_no <br />FROM dual; </font> </font> </p> <p> <font face="Arial" size="2">--use the sequence number as the primary key <br />--for the record being inserted <br />:new.checkup_no := next_checkup_no; <br />END; </font> </p> <p> <font face="Arial" size="2">17錛庢煡鐪嬪璞$殑渚濊禆鍏崇郴(姣斿瑙嗗浘涓庤〃鐨勫紩鐢? </font> </p> <p> <font face="Arial" size="2">鏌ョ湅瑙嗗浘錛歞ba_dependencies 璁板綍浜嗙浉鍏崇殑渚濊禆鍏崇郴 </font> </p> <p> <font face="Arial" size="2">鏌ヤ笢瑗夸笉鐭ラ亾瑕佹煡鐪嬪摢涓鍥炬椂錛屽彲浠ュ湪DBA_Objects閲岀湅錛?</font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select object_name from dba_objects where object_name like '%ROLE%'(鍋囧鏌ョ湅ROLE鐩稿叧) </font> </font> </p> <p> <font face="Arial" size="2">鐒跺悗DESC涓涓嬪氨澶т綋涓婄煡閬撲簡銆?/font> </p> <p> <font face="Arial" size="2">18錛庤鎵懼埌鏌愭湀涓墍鏈夊懆浜旂殑鍏蜂綋鏃ユ湡 </font> </p> <p color="#a52a2a"> <font face="Arial"> <font size="2">select to_char(t.d,'YY-MM-DD') from ( <br />select trunc(sysdate, 'MM')+rownum-1 as d <br />from dba_objects <br />where rownum < 32) t <br />where to_char(t.d, 'MM') = to_char(sysdate, 'MM') --鎵懼嚭褰撳墠鏈堜喚鐨勫懆浜旂殑鏃ユ湡<br />and trim(to_char(t.d, 'Day')) = '鏄熸湡浜? </font> </font> </p> <p> <font face="Arial" size="2">-------- </font> </p> <p> <font face="Arial" size="2">03-05-02 </font> </p> <p> <font face="Arial" size="2">03-05-09 </font> </p> <p> <font face="Arial" size="2">03-05-16 </font> </p> <p> <font face="Arial" size="2">03-05-23 </font> </p> <p> <font face="Arial" size="2">03-05-30 </font> </p> <p> <font face="Arial" size="2">濡傛灉鎶妛here to_char(t.d, 'MM') = to_char(sysdate, 'MM')鏀規垚sysdate-90錛屽嵆涓烘煡鎵懼綋鍓嶆湀浠界殑鍓嶄笁涓湀涓殑姣忓懆浜旂殑鏃ユ湡銆?br />2.----------------------------------------------------------------------------------------------------------------------------------------------------------------------------</font> </p> <h1>SQL*PLUS鍛戒護鐨勪嬌鐢ㄥぇ鍏?</h1> <p> <span id="adcontent"> </span>聽聽聽聽聽 Oracle鐨剆ql*plus鏄笌oracle榪涜浜や簰鐨勫鎴風宸ュ叿銆傚湪sql*plus涓紝鍙互榪愯sql*plus鍛戒護涓巗ql*plus璇彞銆?<br />聽 聽鎴戜滑閫氬父鎵璇寸殑DML銆丏DL銆丏CL璇彞閮芥槸sql*plus璇彞錛屽畠浠墽琛屽畬鍚庯紝閮藉彲浠ヤ繚瀛樺湪涓涓縐頒負sql buffer鐨勫唴瀛樺尯鍩熶腑錛屽茍涓斿彧鑳戒繚瀛樹竴鏉℃渶榪戞墽琛岀殑sql璇彞錛屾垜浠彲浠ュ淇濆瓨鍦╯ql buffer涓殑sql 璇彞榪涜淇敼錛岀劧鍚庡啀嬈℃墽琛岋紝sql*plus涓鑸兘涓庢暟鎹簱鎵撲氦閬撱?<br />聽 聽闄や簡sql*plus璇彞錛屽湪sql*plus涓墽琛岀殑鍏跺畠璇彞鎴戜滑縐頒箣涓簊ql*plus鍛戒護銆傚畠浠墽琛屽畬鍚庯紝涓嶄繚瀛樺湪sql buffer鐨勫唴瀛樺尯鍩熶腑錛屽畠浠竴鑸敤鏉ュ杈撳嚭鐨勭粨鏋滆繘琛屾牸寮忓寲鏄劇ず錛屼互渚夸簬鍒朵綔鎶ヨ〃銆?<br />聽 聽涓嬮潰灝變粙緇嶄竴涓嬩竴浜涘父鐢ㄧ殑sql*plus鍛戒護錛?<br />聽聽<br />1. 鎵ц涓涓猄QL鑴氭湰鏂囦歡 <br />SQL>start file_name <br />SQL>@ file_name <br />鎴戜滑鍙互灝嗗鏉ql璇彞淇濆瓨鍦ㄤ竴涓枃鏈枃浠朵腑錛岃繖鏍峰綋瑕佹墽琛岃繖涓枃浠朵腑鐨勬墍鏈夌殑sql璇彞鏃訛紝鐢ㄤ笂闈㈢殑浠諱竴鍛戒護鍗沖彲錛岃繖綾諱技浜巇os涓殑鎵瑰鐞嗐?<br />聽聽<br />2. 瀵瑰綋鍓嶇殑杈撳叆榪涜緙栬緫 <br />SQL>edit <br />聽聽<br />3. 閲嶆柊榪愯涓婁竴嬈¤繍琛岀殑sql璇彞 <br />SQL>/ <br />聽聽<br />4. 灝嗘樉紺虹殑鍐呭杈撳嚭鍒版寚瀹氭枃浠?<br />SQL> SPOOL file_name <br />聽 聽鍦ㄥ睆騫曚笂鐨勬墍鏈夊唴瀹歸兘鍖呭惈鍦ㄨ鏂囦歡涓紝鍖呮嫭浣犺緭鍏ョ殑sql璇彞銆?<br />聽聽<br />5. 鍏抽棴spool杈撳嚭 <br />SQL> SPOOL OFF <br />聽 聽鍙湁鍏抽棴spool杈撳嚭錛屾墠浼氬湪杈撳嚭鏂囦歡涓湅鍒拌緭鍑虹殑鍐呭銆?<br />聽聽<br />6錛庢樉紺轟竴涓〃鐨勭粨鏋?<br />SQL> desc table_name <br />聽聽<br />7. COL鍛戒護錛?<br />涓昏鏍煎紡鍖栧垪鐨勬樉紺哄艦寮忋?<br />璇ュ懡浠ゆ湁璁稿閫夐」錛屽叿浣撳涓嬶細 <br />COL[UMN] [{ column|expr} [ option ...]] <br />Option閫夐」鍙互鏄涓嬬殑瀛愬彞: <br />ALI[AS] alias <br />CLE[AR] <br />FOLD_A[FTER] <br />FOLD_B[EFORE] <br />FOR[MAT] format <br />HEA[DING] text <br />JUS[TIFY] {L[EFT]|C[ENTER]|C[ENTRE]|R[IGHT]} <br />LIKE { expr|alias} <br />NEWL[INE] <br />NEW_V[ALUE] variable <br />NOPRI[NT]|PRI[NT] <br />NUL[L] text <br />OLD_V[ALUE] variable <br />ON|OFF <br />WRA[PPED]|WOR[D_WRAPPED]|TRU[NCATED] <br />聽聽<br />1). 鏀瑰彉緙虹渷鐨勫垪鏍囬 <br />COLUMN column_name HEADING column_heading <br />For example: <br />Sql>select * from dept; <br />聽 聽聽聽DEPTNO DNAME聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽LOC <br />---------- ---------------------------- --------- <br />聽 聽聽 聽聽 聽10 ACCOUNTING聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽 NEW YORK <br />sql>col聽聽LOC heading location <br />sql>select * from dept; <br />聽 聽 DEPTNO DNAME聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽location <br />--------- ---------------------------- ----------- <br />聽 聽聽 聽聽聽10 ACCOUNTING聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽 NEW YORK <br />聽聽<br />2). 灝嗗垪鍚岴NAME鏀逛負鏂板垪鍚岴MPLOYEE NAME騫跺皢鏂板垪鍚嶆斁鍦ㄤ袱琛屼笂錛?<br />Sql>select * from emp <br />Department聽聽name聽 聽聽 聽聽 聽聽聽Salary <br />---------- ---------- ---------- <br />聽 聽聽 聽聽 聽10 aaa聽 聽聽 聽聽 聽聽 聽聽 聽 11聽 聽聽 聽聽 聽<br />SQL> COLUMN ENAME HEADING 鈥橢mployee|Name鈥?<br />Sql>select * from emp <br />聽 聽聽 聽聽 聽聽 聽Employee <br />Department聽聽name聽 聽聽 聽聽 聽聽聽Salary <br />---------- ---------- ----------聽聽<br />聽 聽聽 聽聽 聽10 aaa聽 聽聽 聽聽 聽聽 聽聽 聽 11 <br />note: the col heading turn into two lines from one line. <br />聽聽<br />3). 鏀瑰彉鍒楃殑鏄劇ず闀垮害錛?<br />FOR[MAT] format <br />Sql>select empno,ename,job from emp; <br />聽 聽聽 聽EMPNO ENAME聽 聽聽 聽JOB聽 聽聽 聽聽聽<br />---------- ----------聽 聽聽聽--------- <br />聽 聽聽 聽 7369 SMITH聽 聽聽 聽CLERK聽 聽聽 聽<br />聽 聽聽 聽 7499 ALLEN聽 聽聽 聽SALESMAN聽 聽<br />7521 WARD聽 聽聽 聽 SALESMAN聽 聽<br />Sql> col ename format a40 <br />聽 聽聽 聽EMPNO ENAME聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽JOB <br />----------聽 聽----------------------------------------聽 聽聽 聽聽 聽--------- <br />聽 聽聽 聽 7369 SMITH聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽CLERK <br />聽 聽聽 聽 7499 ALLEN聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽SALESMAN <br />聽 聽聽 聽 7521 WARD聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽SALESMAN <br />聽聽<br />4). 璁劇疆鍒楁爣棰樼殑瀵歸綈鏂瑰紡 <br />JUS[TIFY] {L[EFT]|C[ENTER]|C[ENTRE]|R[IGHT]} <br />SQL> col ename justify center <br />SQL> / <br />聽 聽聽 聽EMPNO聽 聽聽 聽聽 聽聽聽ENAME聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽 JOB <br />----------聽 聽----------------------------------------聽 聽聽 聽 --------- <br />聽 聽聽 聽 7369 SMITH聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽CLERK <br />聽 聽聽 聽 7499 ALLEN聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽SALESMAN <br />7521 WARD聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽聽 聽 SALESMAN <br />瀵逛簬NUMBER鍨嬬殑鍒楋紝鍒楁爣棰樼己鐪佸湪鍙寵竟錛屽叾瀹冪被鍨嬬殑鍒楁爣棰樼己鐪佸湪宸﹁竟 <br />聽聽<br />5). 涓嶈涓涓垪鏄劇ず鍦ㄥ睆騫曚笂 <br />NOPRI[NT]|PRI[NT] <br />SQL> col job noprint <br />SQL> / <br />聽 聽聽 聽EMPNO聽 聽聽 聽聽 聽聽聽ENAME <br />----------聽 聽聽聽---------------------------------------- <br />聽 聽聽 聽 7369 SMITH <br />聽 聽聽 聽 7499 ALLEN <br />7521 WARD <br />聽聽<br />6). 鏍煎紡鍖朜UMBER綾誨瀷鍒楃殑鏄劇ず錛?<br />SQL> COLUMN SAL FORMAT $99,990 <br />SQL> / <br />Employee <br />Department Name聽 聽聽 聽聽聽Salary聽 聽 Commission <br />---------- ---------- --------- ---------- <br />30聽 聽聽 聽聽 聽 ALLEN聽 聽聽 聽聽聽$1,600聽 聽 300 <br />聽聽<br />7). 鏄劇ず鍒楀兼椂錛屽鏋滃垪鍊間負NULL鍊鹼紝鐢╰ext鍊間唬鏇縉ULL鍊?<br />COMM NUL[L] text <br />SQL>COL COMM NUL[L] text <br />聽聽<br />8). 璁劇疆涓涓垪鐨勫洖緇曟柟寮?<br />WRA[PPED]|WOR[D_WRAPPED]|TRU[NCATED] <br />聽 聽聽 聽聽聽COL1 <br />-------------------- <br />HOW ARE YOU? <br />聽聽<br />SQL>COL COL1 FORMAT A5 <br />SQL>COL COL1 WRAPPED <br />COL1 <br />----- <br />HOW A <br />RE YO <br />U? <br />聽聽<br />SQL> COL COL1 WORD_WRAPPED <br />COL1 <br />----- <br />HOW <br />ARE <br />YOU? <br />聽聽<br />SQL> COL COL1 WORD_WRAPPED <br />COL1 <br />----- <br />HOW A <br />聽聽<br />9). 鏄劇ず鍒楃殑褰撳墠鐨勬樉紺哄睘鎬у?<br />SQL> COLUMN column_name <br />聽聽<br />10). 灝嗘墍鏈夊垪鐨勬樉紺哄睘鎬ц涓虹己鐪佸?<br />SQL> CLEAR COLUMNS <br />聽聽<br />8. 灞忚斀鎺変竴涓垪涓樉紺虹殑鐩稿悓鐨勫?<br />BREAK ON break_column <br />SQL> BREAK ON DEPTNO <br />SQL> SELECT DEPTNO, ENAME, SAL <br />FROM EMP <br />聽聽WHERE SAL < 2500 <br />聽聽ORDER BY DEPTNO; <br />DEPTNO聽 聽聽 聽ENAME聽 聽聽 聽聽 聽SAL <br />---------- ----------- --------- <br />10聽 聽聽 聽聽 聽聽聽CLARK聽 聽聽 聽聽聽2450 <br />MILLER聽 聽聽 聽1300 <br />20聽 聽聽 聽聽 聽聽 聽SMITH聽 聽聽 聽 800 <br />ADAMS聽 聽聽 聽 1100 <br />聽聽<br />9. 鍦ㄤ笂闈㈠睆钄芥帀涓涓垪涓樉紺虹殑鐩稿悓鐨勫肩殑鏄劇ず涓紝姣忓綋鍒楀煎彉鍖栨椂鍦ㄥ煎彉鍖栦箣鍓嶆彃鍏涓┖琛屻?<br />BREAK ON break_column SKIP n <br />聽聽<br />SQL> BREAK ON DEPTNO SKIP 1 <br />SQL> / <br />DEPTNO ENAME SAL <br />---------- ----------- --------- <br />10 CLARK 2450 <br />MILLER 1300 <br />聽聽<br />20 SMITH 800 <br />ADAMS 1100 <br />聽聽<br />10. 鏄劇ず瀵笲REAK鐨勮緗?<br />SQL> BREAK <br />聽聽<br />11. 鍒犻櫎6銆?鐨勮緗?<br />SQL> CLEAR BREAKS <br />聽聽<br />12. Set 鍛戒護錛?<br />璇ュ懡浠ゅ寘鍚澶氬瓙鍛戒護錛?<br />SET system_variable value <br />system_variable value 鍙互鏄涓嬬殑瀛愬彞涔嬩竴錛?<br />APPI[NFO]{ON|OFF|text} <br />ARRAY[SIZE] {15|n} <br />AUTO[COMMIT]{ON|OFF|IMM[EDIATE]|n} <br />AUTOP[RINT] {ON|OFF} <br />AUTORECOVERY [ON|OFF] <br />AUTOT[RACE] {ON|OFF|TRACE[ONLY]} [EXP[LAIN]] [STAT[ISTICS]] <br />BLO[CKTERMINATOR] {.|c} <br />CMDS[EP] {;|c|ON|OFF} <br />COLSEP {_|text} <br />COM[PATIBILITY]{V7|V8|NATIVE} <br />CON[CAT] {.|c|ON|OFF} <br />COPYC[OMMIT] {0|n} <br />COPYTYPECHECK {ON|OFF} <br />DEF[INE] {&|c|ON|OFF} <br />DESCRIBE [DEPTH {1|n|ALL}][LINENUM {ON|OFF}][INDENT {ON|OFF}] <br />ECHO {ON|OFF} <br />EDITF[ILE] file_name[.ext] <br />EMB[EDDED] {ON|OFF} <br />ESC[APE] {\|c|ON|OFF} <br />FEED[BACK] {6|n|ON|OFF} <br />FLAGGER {OFF|ENTRY |INTERMED[IATE]|FULL} <br />FLU[SH] {ON|OFF} <br />HEA[DING] {ON|OFF} <br />HEADS[EP] {||c|ON|OFF} <br />INSTANCE [instance_path|LOCAL] <br />LIN[ESIZE] {80|n} <br />LOBOF[FSET] {n|1} <br />LOGSOURCE [pathname] <br />LONG {80|n} <br />LONGC[HUNKSIZE] {80|n} <br />MARK[UP] HTML [ON|OFF] [HEAD text] [BODY text] [ENTMAP {ON|OFF}] [SPOOL <br />{ON|OFF}] [PRE[FORMAT] {ON|OFF}] <br />NEWP[AGE] {1|n|NONE} <br />NULL text <br />NUMF[ORMAT] format <br />NUM[WIDTH] {10|n} <br />PAGES[IZE] {24|n} <br />PAU[SE] {ON|OFF|text} <br />RECSEP {WR[APPED]|EA[CH]|OFF} <br />RECSEPCHAR {_|c} <br />SERVEROUT[PUT] {ON|OFF} [SIZE n] [FOR[MAT] {WRA[PPED]|WOR[D_ <br />WRAPPED]|TRU[NCATED]}] <br />SHIFT[INOUT] {VIS[IBLE]|INV[ISIBLE]} <br />SHOW[MODE] {ON|OFF} <br />SQLBL[ANKLINES] {ON|OFF} <br />SQLC[ASE] {MIX[ED]|LO[WER]|UP[PER]} <br />SQLCO[NTINUE] {> |text} <br />SQLN[UMBER] {ON|OFF} <br />SQLPRE[FIX] {#|c} <br />SQLP[ROMPT] {SQL>|text} <br />SQLT[ERMINATOR] {;|c|ON|OFF} <br />SUF[FIX] {SQL|text} <br />TAB {ON|OFF} <br />TERM[OUT] {ON|OFF} <br />TI[ME] {ON|OFF} <br />TIMI[NG] {ON|OFF} <br />TRIM[OUT] {ON|OFF} <br />TRIMS[POOL] {ON|OFF} <br />UND[ERLINE] {-|c|ON|OFF} <br />VER[IFY] {ON|OFF} <br />WRA[P] {ON|OFF} <br />聽聽<br />1). 璁劇疆褰撳墠session鏄惁瀵逛慨鏀圭殑鏁版嵁榪涜鑷姩鎻愪氦 <br />SQL>SET AUTO[COMMIT] {ON|OFF|IMM[EDIATE]| n} <br />聽聽<br />2)錛庡湪鐢╯tart鍛戒護鎵ц涓涓猻ql鑴氭湰鏃訛紝鏄惁鏄劇ず鑴氭湰涓鍦ㄦ墽琛岀殑SQL璇彞 <br />SQL> SET ECHO {ON|OFF} <br />聽聽<br />3).鏄惁鏄劇ず褰撳墠sql璇彞鏌ヨ鎴栦慨鏀圭殑琛屾暟 <br />SQL> SET FEED[BACK] {6|n|ON|OFF} <br />聽 聽榛樿鍙湁緇撴灉澶т簬6琛屾椂鎵嶆樉紺虹粨鏋滅殑琛屾暟銆傚鏋渟et feedback 1 錛屽垯涓嶇鏌ヨ鍒板灝戣閮借繑鍥炪傚綋涓簅ff 鏃訛紝涓寰嬩笉鏄劇ず鏌ヨ鐨勮鏁?<br />聽聽<br />4).鏄惁鏄劇ず鍒楁爣棰?<br />SQL> SET HEA[DING] {ON|OFF} <br />褰搒et heading off 鏃訛紝鍦ㄦ瘡欏電殑涓婇潰涓嶆樉紺哄垪鏍囬錛岃屾槸浠ョ┖鐧借浠f浛 <br />聽聽<br />5).璁劇疆涓琛屽彲浠ュ綰崇殑瀛楃鏁?<br />SQL> SET LIN[ESIZE] {80|n} <br />聽 聽濡傛灉涓琛岀殑杈撳嚭鍐呭澶т簬璁劇疆鐨勪竴琛屽彲瀹圭撼鐨勫瓧絎︽暟錛屽垯鎶樿鏄劇ず銆?<br />聽聽<br />6).璁劇疆欏典笌欏典箣闂寸殑鍒嗛殧 <br />SQL> SET NEWP[AGE] {1|n|NONE} <br />褰搒et newpage 0 鏃訛紝浼氬湪姣忛〉鐨勫紑澶存湁涓涓皬鐨勯粦鏂規銆?<br />褰搒et newpage n 鏃訛紝浼氬湪欏靛拰欏典箣闂撮殧鐫n涓┖琛屻?<br />褰搒et newpage none 鏃訛紝浼氬湪欏靛拰欏典箣闂存病鏈変換浣曢棿闅斻?<br />聽聽<br />7).鏄劇ず鏃訛紝鐢╰ext鍊間唬鏇縉ULL鍊?<br />SQL> SET NULL text <br />聽聽<br />8).璁劇疆涓欏墊湁澶氬皯琛屾暟 <br />SQL> SET PAGES[IZE] {24|n} <br />濡傛灉璁句負0錛屽垯鎵鏈夌殑杈撳嚭鍐呭涓轟竴欏靛茍涓斾笉鏄劇ず鍒楁爣棰?<br />聽聽<br />9).鏄惁鏄劇ず鐢―BMS_OUTPUT.PUT_LINE鍖呰繘琛岃緭鍑虹殑淇℃伅銆?<br />SQL> SET SERVEROUT[PUT] {ON|OFF}聽聽<br />鍦ㄧ紪鍐欏瓨鍌ㄨ繃紼嬫椂錛屾垜浠湁鏃朵細鐢╠bms_output.put_line灝嗗繀瑕佺殑淇℃伅杈撳嚭錛屼互渚垮瀛樺偍榪囩▼榪涜璋冭瘯錛屽彧鏈夊皢serveroutput鍙橀噺璁句負on鍚庯紝淇℃伅鎵嶈兘鏄劇ず鍦ㄥ睆騫曚笂銆?<br />聽聽<br />10).褰揝QL璇彞鐨勯暱搴﹀ぇ浜嶭INESIZE鏃訛紝鏄惁鍦ㄦ樉紺烘椂鎴彇SQL璇彞銆?<br />SQL> SET WRA[P] {ON|OFF} <br />聽 聽褰撹緭鍑虹殑琛岀殑闀垮害澶т簬璁劇疆鐨勮鐨勯暱搴︽椂錛堢敤set linesize n鍛戒護璁劇疆錛夛紝褰搒et wrap on鏃訛紝杈撳嚭琛岀殑澶氫簬鐨勫瓧絎︿細鍙﹁搗涓琛屾樉紺猴紝鍚﹀垯錛屼細灝嗚緭鍑鴻鐨勫浜庡瓧絎﹀垏闄わ紝涓嶄簣鏄劇ず銆?<br />聽聽<br />11).鏄惁鍦ㄥ睆騫曚笂鏄劇ず杈撳嚭鐨勫唴瀹癸紝涓昏鐢ㄤ笌SPOOL緇撳悎浣跨敤銆?<br />SQL> SET TERM[OUT] {ON|OFF} <br />聽 聽鍦ㄧ敤spool鍛戒護灝嗕竴涓ぇ琛ㄤ腑鐨勫唴瀹硅緭鍑哄埌涓涓枃浠朵腑鏃訛紝灝嗗唴瀹硅緭鍑哄湪灞忓箷涓婁細鑰楄垂澶ч噺鐨勬椂闂達紝璁劇疆set termspool off鍚庯紝鍒欒緭鍑虹殑鍐呭鍙細淇濆瓨鍦ㄨ緭鍑烘枃浠朵腑錛屼笉浼氭樉紺哄湪灞忓箷涓婏紝鏋佸ぇ鐨勬彁楂樹簡spool鐨勯熷害銆?<br />聽聽<br />12).灝哠POOL杈撳嚭涓瘡琛屽悗闈㈠浣欑殑絀烘牸鍘繪帀 <br />SQL> SET TRIMS[OUT] {ON|OFF}聽聽<br />聽 聽 <br />13)鏄劇ず姣忎釜sql璇彞鑺辮垂鐨勬墽琛屾椂闂?<br />set TIMING聽聽{ON|OFF} <br />聽聽<br />14錛庝慨鏀箂ql buffer涓殑褰撳墠琛屼腑錛岀涓涓嚭鐜扮殑瀛楃涓?<br />C[HANGE] /old_value/new_value <br />SQL> l <br />聽 聽1* select * from dept <br />SQL> c/dept/emp <br />聽 聽1* select * from emp <br />聽聽<br />15錛庣紪杈憇ql buffer涓殑sql璇彞 <br />EDI[T] <br />聽聽<br />16錛庢樉紺簊ql buffer涓殑sql璇彞錛宭ist n鏄劇ずsql buffer涓殑絎琻琛岋紝騫朵嬌絎琻琛屾垚涓哄綋鍓嶈 <br />L[IST] [n] <br />聽聽<br />17錛庡湪sql buffer鐨勫綋鍓嶈涓嬮潰鍔犱竴琛屾垨澶氳 <br />I[NPUT] <br />聽聽<br />18錛庡皢鎸囧畾鐨勬枃鏈姞鍒皊ql buffer鐨勫綋鍓嶈鍚庨潰 <br />A[PPEND] <br />SQL> select deptno, <br />聽 聽2聽聽dname <br />聽 聽3聽聽from dept; <br />聽 聽聽聽DEPTNO DNAME <br />---------- -------------- <br />聽 聽聽 聽聽 聽10 ACCOUNTING <br />聽 聽聽 聽聽 聽20 RESEARCH <br />聽 聽聽 聽聽 聽30 SALES <br />聽 聽聽 聽聽 聽40 OPERATIONS <br />聽聽<br />SQL> L 2 <br />聽 聽2* dname <br />SQL> a ,loc <br />聽 聽2* dname,loc <br />SQL> L <br />聽 聽1聽聽select deptno, <br />聽 聽2聽聽dname,loc <br />聽 聽3* from dept <br />SQL> / <br />聽聽<br />聽 聽聽聽DEPTNO DNAME聽 聽聽 聽聽 聽 LOC <br />---------- -------------- ------------- <br />聽 聽聽 聽聽 聽10 ACCOUNTING聽 聽聽聽NEW YORK <br />聽 聽聽 聽聽 聽20 RESEARCH聽 聽聽 聽 DALLAS <br />聽 聽聽 聽聽 聽30 SALES聽 聽聽 聽聽 聽 CHICAGO <br />聽 聽聽 聽聽 聽40 OPERATIONS聽 聽聽聽BOSTON <br />聽聽<br />19錛庡皢sql buffer涓殑sql璇彞淇濆瓨鍒頒竴涓枃浠朵腑 <br />SAVE file_name <br />聽聽<br />20錛庡皢涓涓枃浠朵腑鐨剆ql璇彞瀵煎叆鍒皊ql buffer涓?<br />GET file_name <br />聽聽<br />21錛庡啀嬈℃墽琛屽垰鎵嶅凡緇忔墽琛岀殑sql璇彞 <br />RUN <br />or <br />/ <br />聽聽<br />22錛庢墽琛屼竴涓瓨鍌ㄨ繃紼?<br />EXECUTE procedure_name <br />聽聽<br />23錛庡湪sql*plus涓繛鎺ュ埌鎸囧畾鐨勬暟鎹簱 <br />CONNECT user_name/passwd@db_alias <br />聽聽<br />24錛庤緗瘡涓姤琛ㄧ殑欏墮儴鏍囬 <br />TTITLE <br />聽聽<br />25錛庤緗瘡涓姤琛ㄧ殑灝鵑儴鏍囬 <br />BTITLE <br />聽聽<br />26錛庡啓涓涓敞閲?<br />REMARK [text] <br />聽聽<br />27錛庡皢鎸囧畾鐨勪俊鎭垨涓涓┖琛岃緭鍑哄埌灞忓箷涓?<br />PROMPT [text] <br />聽聽<br />28錛庡皢鎵ц鐨勮繃紼嬫殏鍋滐紝絳夊緟鐢ㄦ埛鍝嶅簲鍚庣戶緇墽琛?<br />PAUSE [text] <br />聽聽<br />Sql>PAUSE Adjust paper and press RETURN to continue. <br />聽聽<br />29錛庡皢涓涓暟鎹簱涓殑涓浜涙暟鎹嫹璐濆埌鍙﹀涓涓暟鎹簱錛堝灝嗕竴涓〃鐨勬暟鎹嫹璐濆埌鍙︿竴涓暟鎹簱錛?<br />COPY {FROM database | TO database | FROM database TO database} <br />{APPEND|CREATE|INSERT|REPLACE} destination_table <br />[(column, column, column, ...)] USING query <br />聽聽<br />sql>COPY FROM SCOTT/TIGER@HQ TO JOHN/CHROME@WEST聽聽<br />create emp_temp <br />USING SELECT * FROM EMP <br />聽聽<br />30錛庝笉閫鍑簊ql*plus錛屽湪sql*plus涓墽琛屼竴涓搷浣滅郴緇熷懡浠わ細 <br />HOST <br />聽聽<br />Sql> host hostname <br />璇ュ懡浠ゅ湪windows涓嬪彲鑳借鏀寔銆?<br />聽聽<br />31錛庡湪sql*plus涓紝鍒囨崲鍒版搷浣滅郴緇熷懡浠ゆ彁紺虹涓嬶紝榪愯鎿嶄綔緋葷粺鍛戒護鍚庯紝鍙互鍐嶆鍒囨崲鍥瀞ql*plus錛?<br />! <br />聽聽<br />sql>! <br />$hostname <br />$exit <br />sql> <br />聽聽<br />璇ュ懡浠ゅ湪windows涓嬩笉琚敮鎸併?<br />聽聽<br />32錛庢樉紺簊ql*plus鍛戒護鐨勫府鍔?<br />HELP <br />濡備綍瀹夎甯姪鏂囦歡錛?<br />Sql>@ ?\sqlplus\admin\help\hlpbld.sql ?\sqlplus\admin\help\helpus.sql <br />Sql>help index <br />聽聽<br />33錛庢樉紺簊ql*plus緋葷粺鍙橀噺鐨勫兼垨sql*plus鐜鍙橀噺鐨勫?<br />Syntax <br />SHO[W] option <br />where option represents one of the following terms or clauses: <br />system_variable <br />ALL <br />BTI[TLE] <br />ERR[ORS] [{FUNCTION|PROCEDURE|PACKAGE|PACKAGE BODY| <br />TRIGGER|VIEW|TYPE|TYPE BODY} [schema.]name] <br />LNO <br />PARAMETERS [parameter_name] <br />PNO <br />REL[EASE] <br />REPF[OOTER] <br />REPH[EADER] <br />SGA <br />SPOO[L] <br />SQLCODE <br />TTI[TLE] <br />USER <br />聽聽<br />1) . 鏄劇ず褰撳墠鐜鍙橀噺鐨勫鹼細 <br />Show all <br />聽聽<br />2) . 鏄劇ず褰撳墠鍦ㄥ垱寤哄嚱鏁般佸瓨鍌ㄨ繃紼嬨佽Е鍙戝櫒銆佸寘絳夊璞$殑閿欒淇℃伅 <br />Show error <br />褰撳垱寤轟竴涓嚱鏁般佸瓨鍌ㄨ繃紼嬬瓑鍑洪敊鏃訛紝鍙樺彲浠ョ敤璇ュ懡浠ゆ煡鐪嬪湪閭d釜鍦版柟鍑洪敊鍙婄浉搴旂殑鍑洪敊淇℃伅錛岃繘琛屼慨鏀瑰悗鍐嶆榪涜緙栬瘧銆?<br />聽聽<br />3) . 鏄劇ず鍒濆鍖栧弬鏁扮殑鍊鹼細 <br />show PARAMETERS [parameter_name] <br />聽聽<br />4) . 鏄劇ず鏁版嵁搴撶殑鐗堟湰錛?<br />show REL[EASE] <br />聽聽<br />5) . 鏄劇ずSGA鐨勫ぇ灝?<br />show SGA <br />聽聽<br />6). 鏄劇ず褰撳墠鐨勭敤鎴峰悕 <br />show user<br /></p> <img src ="http://m.tkk7.com/zhanglijun33/aggbug/77555.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.tkk7.com/zhanglijun33/" target="_blank">鏅鴻呮棤鐤?/a> 2006-10-27 10:40 <a href="http://m.tkk7.com/zhanglijun33/archive/2006/10/27/aboutOrcale.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <footer> <div class="friendship-link"> <p>感谢您访问我们的网站,您可能还对以下资源感兴趣:</p> <a 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