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鏂囩珷鍐呭寮曠敤鑷細(xì)
鍏ㄩ潰浜嗚В鏁版嵁搴撹璁′腑鍒嗙被綆楁硶
http://blog.csdn.net/hyzhx/archive/2008/03/21/2201465.aspx

鍦ㄦ暟鎹簱涓瓨鍌ㄥ眰嬈℃暟鎹疄鐜版棤闄愮駭鍒嗗眰
http://www.52web.com/52article/?view-250.html
http://www.thinkly.cn/index.php/archives/354

鍟嗗搧鏃犻檺鍒嗙被鐨勭畻娉曞浣曚紭鍖?
http://www.javaeye.com/topic/170744

      鍏充簬鏃犻檺鍒嗙被鐨勮璁＄綉涓婅璁烘湁寰堝錛岃鐧戒簡灝辨槸鍦ㄦ暟鎹簱涓璁℃爲(wèi)鐨勯棶棰橈紝鍦ㄨ繖閲屼粎瀵規(guī)垜鎵鐭ョ殑鍋氫簺璁板綍涓庡姣斻?br /> 鍋囪琛ㄧ粨鏋勪負(fù)涓嬪浘錛屽茍涓斾負(fù)鏌愯〃鐨勫閿紩鐢ㄣ傝姹傦細(xì)
1銆佸疄鐜版棤闄愬眰嬈°?br /> 2銆佽兘鎵懼埌鑺傜偣鐨勮礬寰勩?br /> 3銆佽兘鎵懼埌鎵鏈夊瓙瀛欒妭鐐歸泦鍚堬紙鑾峰彇鏍?wèi)锛夈?br />
寮曠敤錛?鍦ㄦ暟鎹簱涓瓨鍌ㄥ眰嬈℃暟鎹疄鐜版棤闄愮駭鍒嗗眰"

 

鏂規(guī)1錛氶偦鎺ュ垪琛ㄦā鍨?The Adjacency List Model)/閫掑綊鏂規(guī)硶
http://www.52web.com/52article/?view-250-page-2.html
 
寮曠敤錛?鍦ㄦ暟鎹簱涓瓨鍌ㄥ眰嬈℃暟鎹疄鐜版棤闄愮駭鍒嗗眰"

 

浼樼偣錛氱粨鏋勭畝鍗曟槑浜嗭紝瀵逛簬鑺傜偣鐨勭淮鎶ゅ茍涓嶉渶瑕侀澶栫殑宸ヤ綔銆?br /> 緙虹偣錛氬疄鐜拌姹?銆?闇瑕佽繘琛屽ぇ閲忕殑閫掑綊鎿嶄綔錛屾瘡涓嬈℃暟鎹簱鏌ヨ閮介渶瑕佽姳璐逛竴鐐規(guī)椂闂淬?br />  

鏂規(guī)2錛氶掑綊鏂規(guī)硶鏀硅繘


 

瀵規(guī)柟妗?鐨勬墿灞曪紝鏂板 path瀛楁浠ュ瓨鍌ㄨ妭鐐硅礬寰勶紝arrayChild瀛楁瀛樺偍鍏朵笅鎵鏈夎妭鐐廣?/p>

浼樼偣錛氬疄鐜拌姹?銆?鍙渶瑕佷竴嬈℃煡璇€?br /> 緙虹偣錛氬綋鑺傜偣鍙戠敓鏀瑰彉鏃墮渶瑕佺淮鎶ゅ搴旂殑瀛楁錛屼笖 path涓?arrayChild浠ユ嫾涓插艦寮忓瓨鍌ㄤ簬鏂囨湰瀛楁錛屽鏄撻檺鍒惰妭鐐歸暱搴︼紝騫朵笖瀵逛簬鏌ヨ鏁堢巼鏈夊獎(jiǎng)鍝嶃?/p>

 

鏂規(guī)3錛氭敼榪涘墠搴忛亶鍘嗘爲(wèi)
http://www.52web.com/52article/?view-250-page-2.html



濡傛灉浣滀負(fù)涓婚敭鏍囪瘑鐨勮妭鐐圭紪鍙峰瓨鍦ㄥ閮ㄥ紩鐢紝榪橀渶瑕佸畾涔変竴涓摼琛ㄧ紪鍙?linkId鏉ョ‘淇濆叾涓婚敭鏍囪瘑鍥哄畾錛屽茍閲嶆柊瀹氫箟鍏墮摼琛ㄥ乏鍙寵寖鍥淬?br />

 

浼樼偣錛氬疄鐜拌姹?銆?鍙渶瑕佷竴嬈℃煡璇紝浣嗘瘮鏂規(guī)2緇存姢璧鋒潵鏇磋鏂逛究錛堝噺灝戝ぇ閲忕殑鎷間覆錛夛紝鑰屼笖鍥犱負(fù)宸﹀彸鍊艱〃紺虹殑鏄摼琛ㄧ殑鑼冨洿錛屾墍浠ユ煡璇㈡晥鐜囨洿楂樸?br /> 緙虹偣錛氱畻娉曟湭緇忚鏄庡墠涓嶅鏂規(guī)1銆?鐩磋銆?nbsp;




ps:
鍒嗙被綆楁硶瑕佽В鍐崇殑闂 

      鍦ㄧ綉绔欏緩璁句腑錛屽垎綾葷畻娉曠殑搴旂敤闈炲父鐨勬櫘閬嶃傚湪璁捐涓涓數(shù)瀛愬晢搴楁椂錛岃娑夊強(qiáng)鍒板晢鍝佸垎綾伙紱鍦ㄨ璁″彂甯冪郴緇熸椂錛岃娑夊強(qiáng)鍒版爮鐩垨鑰呴閬撳垎綾伙紱鍦ㄨ璁¤蔣浠朵笅杞借繖鏍風(fēng)殑紼嬪簭鏃訛紝瑕佹秹鍙?qiáng)鍒拌蒋錃g鐨勫垎綾伙紱濡傛絳夌瓑銆傚彲浠ヨ錛屽垎綾繪槸涓涓緢鏅亶鐨勯棶棰樸?nbsp;

鎴戝父甯擱潰璇曚竴浜涚▼搴忓憳錛岃屼笖鎴戝嚑涔庢鏃犱緥澶栧湴瑕侀棶浠栦滑涓浜涘叧浜庡垎綾葷畻娉曠殑闂銆備笅闈㈢殑涓懼嚑涓垜甯稿父璇㈤棶鐨勯棶棰樸備綘璁や負(fù)浣犲彲浠ュ緢杞繪澗鍦板洖絳斾箞錛?nbsp;

1銆佸垎綾葷畻娉曞父甯歌〃鐜頒負(fù)鏍?wèi)鐨勮〃绀哄拰閬嶅巻闂銆傞偅涔堬紝璇烽棶錛氬鏋滅敤鏁版嵁搴撲腑鐨勪竴涓猅able鏉ヨ〃杈炬爲(wèi)鍨嬪垎綾伙紝搴旇鏈夊嚑涓瓧孌碉紵 

2銆佸浣曞揩閫熷湴浠庤繖涓猅able鎭㈠鍑轟竴媯墊爲(wèi)錛?nbsp;

3銆佸浣曞垽鏂煇涓垎綾繪槸鍚︽槸鍙︿竴涓垎綾葷殑瀛愮被錛?nbsp;

4銆佸浣曟煡鎵炬煇涓垎綾葷殑鎵鏈変駭鍝侊紵 

5銆佸浣曠敓鎴愬垎綾繪墍鍦ㄧ殑璺緞銆?nbsp;

6銆佸浣曟柊澧炲垎綾伙紵 

鍦ㄤ笉闄愬埗鍒嗙被鐨勭駭鏁板拰姣忕駭鍒嗙被鐨勪釜鏁版椂錛岃繖浜涢棶棰樺茍涓嶆槸鍙互杞繪澗鍥炵瓟鐨勩傛湰鏂囪瘯鍥捐В鍐寵繖浜涢棶棰樸?br />


]]>鍏充簬涓婚敭 IDENTITY 鍜?uniqueidentifier 鐨勭瑪璁?/title><link>http://www.tkk7.com/kiant/articles/318833.html</link><dc:creator>榛勫皬浜?/dc:creator><author>榛勫皬浜?/author><pubDate>Tue, 20 Apr 2010 03:52:00 GMT</pubDate><guid>http://www.tkk7.com/kiant/articles/318833.html</guid><wfw:comment>http://www.tkk7.com/kiant/comments/318833.html</wfw:comment><comments>http://www.tkk7.com/kiant/articles/318833.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/kiant/comments/commentRss/318833.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/kiant/services/trackbacks/318833.html</trackback:ping><description><![CDATA[<br /> 鎺ㄨ崘鏂囩珷錛?br /> http://tech.ddvip.com/2008-10/122517676785777_4.html<br /> <br /> 浣跨敤GUID浣滀負(fù)鏁版嵁搴撲富閿殑嫻嬭瘯<br /> http://www.cnblogs.com/chiname/articles/227584.html<br /> <br /> <br /> <hr /> <strong>浣跨敤uniqueidentifier榪樻槸IDENTITY鐢熸垚涓婚敭錛?br /> </strong><br /> <div style="border-right: #cccccc 1px solid; padding-right: 5px; border-top: #cccccc 1px solid; padding-left: 4px; font-size: 13px; padding-bottom: 4px; border-left: #cccccc 1px solid; width: 98%; word-break: break-all; padding-top: 4px; border-bottom: #cccccc 1px solid; background-color: #eeeeee"><span style="color: #000000">銆銆闂 <br /> <br /> 銆銆鎴戞鍦ㄨ璁′竴寮犺〃錛屽茍涓斿喅瀹氬垱寤轟竴涓嚜鍔ㄧ敓鎴愪富閿艱屼笉鏄垱寤鴻嚜宸辯殑妯″紡鎴栬呬嬌鐢ㄨ嚜鐒墮敭銆傛垜鐭ラ亾SQL Server鎻愪緵浜嗗叏鐞冨敮涓璇嗗埆鐮?GUID)錛屼篃鎻愪緵浜嗗垱寤鴻繖浜涘肩殑鏍囪瘑絎︺傝闂繖浜涙柟娉曟湁鍝簺浼樼己鐐瑰憿</span><span style="color: #000000">?</span><span style="color: #000000"><br /> <br /> 銆銆涓撳瑙ｇ瓟<br /> <br /> 銆銆紜疄錛屼綘鍙互閫氳繃寰堝縐嶆柟娉曟潵涓轟綘鐨勮〃鑷姩鐢熸垚涓婚敭鍊箋傛渶甯歌鐨勪竴縐嶆柟娉曟槸閫氳繃浣跨敤IDENTITY瀛楁灞炴э紝鎴栬呮寚瀹氬甫鏈夐粯璁EWID() 鎴朜EWSEQUENTIALID()鍑芥暟鐨勫敮涓璇嗗埆鐮佹暟鎹被鍨嬨傛澶栵紝<span style="color: red">鍦⊿QL Server澶嶅埗涓紝鍏ㄧ悆鍞竴璇嗗埆鐮佺粡甯歌鐢ㄥ湪甯︽湁鏇存柊璁㈤槄鐨勫悎騫跺鍒舵垨鑰呬簨鍔″鍒剁殑鍞竴璇嗗埆絎﹁涓?/span>銆?br /> <br /> <br /> <br /> 銆銆NEWID()鍜孨EWSEQUENTIALID()鏈変粈涔堝尯鍒憿</span><span style="color: #000000">?</span><span style="color: #000000"> NEWID()闅忔満鐢熸垚涓涓熀浜庢湇鍔″櫒緗戝崱鐨勬爣璇嗙鍙風(fēng)爜鍜孋PU鍧楀敮涓鍙風(fēng)爜鐨勪繚璇佺殑鍞竴鍊箋備笌姝ょ浉鍙嶏紝NEWSEQUENTIALID()鎸夌収欏哄簭鐢熸垚榪欎簺鍊艱屼笉鏄殢鏈虹敓鎴愩?br /> <br /> 銆銆姝ｅ浣犵湅鍒扮殑錛?span style="color: red">絎竴寮犺〃浣跨敤NEWID()鐢熸垚闅忔満鍊艱岀浜屽紶琛ㄤ嬌鐢∟EWSEQUENTIALID()鐢熸垚鏈夐『搴忕殑鍊箋傜敱浜庢病鏈夐氳繃IDENTITY鏂規(guī)硶鐢熸垚鏁存暟錛岀敓鎴愮殑鍏ㄧ悆鍞竴璇嗗埆鐮佸肩湅璧鋒潵鍦ㄥ伐浣滀腑涓嶆槗浜庝嬌鐢ㄣ傝繖鏄彟涓涓娉ㄦ剰鐨勫湴鏂?/span>銆係QL Server鍦ㄥ唴瀛樹腑淇濆瓨鏈鍚庝竴涓敓鎴愮殑鏍囪瘑鍊鹼紝榪欐牱鍙互鍦ㄩ氳繃浣跨敤SCOPE_IDENTITY()錛孈@IDENTITY鎴栬匔HECK_IDENT(鍙栧喅浜庝綘瑕佹眰鐨勮寖鍥?鐨処NSERT璇彞涔嬪悗錛岄噸鏂版壘鍒拌繖涓爣璇嗗箋傝繖涓庤幏寰楁渶鍚庝竴涓叏鐞冨敮涓鏍囪瘑絎﹀兼病鏈変換浣曠浉浼間箣澶勩?span style="color: red">濡傛灉浣犱嬌鐢ㄤ竴涓叏鐞冨敮涓鏍囪瘑絎︼紝浣犲繀欏誨垱寤鴻嚜宸辯殑鏈哄埗鏉ヨ幏寰楁渶鍚庝竴涓彃鍏ュ?姣斿錛屽湪鎻掑叆涔嬪墠閲嶆柊鎵懼埌鍏ㄧ悆鍞竴鏍囪瘑絎︽垨鑰呬嬌鐢⊿QL Server 2005 OUTPUT浠庡彞)</span></span><span style="color: #000000">銆?br /> <br /> <br /> <br />     瀛樺偍鏁堟灉<br /> <br /> 銆銆鏍規(guī)嵁杈撳嚭緇撴灉錛屼綘鍙互鐪嬪埌NEWID()嫻嬭瘯琛ㄦ槸鎴愮鐗囩殑錛屽洜涓哄畠鐨勭鐗囨瘮渚嬫槸98</span><span style="color: #000000">%</span><span style="color: #000000">銆傛澶栵紝浣犲彲浠ョ湅鍒拌繖浜涜鍒嗘暎鍦?90欏典腑銆傝繖鏄洜涓虹敓鎴愪富閿殑闅忔満灞炴у鑷翠簡欏墊媶鍒嗐備笌姝ょ浉鍙嶏紝IDENTITY 鍜孨EWSEQUENTIALID()嫻嬭瘯琛ㄥ彧鏈夋瀬灝忕殑紕庣墖姣斾緥錛岃繖鏄洜涓哄畠浠寜鐓х壒瀹氶『搴忚嚜鍔ㄧ敓鎴愰敭銆傜粨鏋滀嬌瀹冧滑鍏嶅彈欏墊媶鍒嗕箣鑻︼紝鑰屼嬌鐢∟EWID()鏂規(guī)硶鍏鋒湁欏墊媶鍒嗙殑鍥版壈銆傚敖綆′綘鍙互鐢ㄧ鐩樼鐗囨暣鐞嗙▼搴忓鐞哊EWID()琛紝浣嗘槸涓婚敭浜х敓鐨勯殢鏈哄睘鎬т粛鐒朵細(xì)鐢變簬灝嗘潵瀵硅〃鍋氭彃鍏ユ搷浣滆屽紩璧烽〉鎷嗗垎鍜岀鐗囥傚敖綆″姝わ紝欏墊媶鍒嗕粛鐒跺彲浠ラ氳繃鎸囧畾鎭板綋鐨凢ILL FACTOR鑰屽噺鍒版渶灝忋?br /> <br /> 銆銆鐜板湪涔熸潵鑰冭檻榪欎釜闂錛屽洜涓哄敮涓鏍囪瘑絎︽暟鎹被鍨嬫秷鑰?6瀛楄妭鐨勬暟鎹紝浠諱綍鍦ㄤ竴寮犺〃涓嬌鐢ㄤ竴涓叏鐞冨敮涓璇嗗埆鐮佷綔涓鴻仛闆嗙儲寮曠殑瀹氫箟闈炶仛闆嗙儲寮曞ぇ灝忛兘浼?xì)鍙楀埌濯?jiǎng)鍝嶏紝鍥犱負(fù)榪欎簺闈炶仛闆嗙儲寮曠殑鍙剁駭鍒寘鍚綔涓烘寚紺哄櫒鐨勮仛闆嗙儲寮曢敭銆傚洜姝わ紝濡傛灉涓涓狪DENTITY琚畾涔変負(fù)鏁存暟鎴栬卋igint鏁版嵁綾誨瀷錛岄偅涔堜換浣曢潪鑱氶泦绱㈠紩鐨勫ぇ灝忓彲鑳戒細(xì)鍥犱負(fù)姣旇緝澶ц岀粓姝€?br /> <br /> <br /> 銆銆寰堟槑鏄撅紝浣跨敤IDENTITY鏉ヨ嚜鍔ㄧ敓鎴愰敭鍊兼瘮浣跨敤鍏ㄧ悆鍞竴鏍囪瘑絎︽柟娉曟洿鍏鋒湁<span style="color: #3366ff">浼樺娍錛?br /> <br /> 銆銆l IDENTITY鐢熸垚鍊兼槸鍙互閰嶇疆鐨勶紝騫朵笖鏄撲簬闃呰錛屾槗浜庡湪宸ヤ綔涓嬌鐢ㄣ?br /> <br /> 銆銆l 鍙互浣跨敤鏇村皯鐨勬暟鎹簱欏墊潵婊¤凍鏌ヨ璇鋒眰銆?br /> <br /> 銆銆l 涓嶯EWID()鏂規(guī)硶鐩告瘮錛屽畠鍦ㄩ〉鎷嗗垎(涓庡墠闈㈢浉鍏?鏂歸潰鐨勬媴蹇у彲浠ユ秷闄ゃ?br /> <br /> 銆銆l 鏁版嵁搴撹妯℃渶灝忓寲銆?br /> <br /> 銆銆l 瀛樺湪緋葷粺鍑芥暟鏉ヨ幏寰楁渶鍚庣敓鎴愮殑IDENTITY鍊?姣斿SCOPE_IDENTITY()絳?<br /> <br /> 銆銆涓浜涚郴緇熷嚱鏁幫紝姣斿MIN()鍜孧AX()錛屼笉鑳藉湪鍞竴鏍囪瘑絎﹀瓧孌典腑浣跨敤銆?/span></span></div> <br /> <br /> <hr /> <strong>浣跨敤GUID浣滀負(fù)鏁版嵁搴撲富閿殑嫻嬭瘯</strong><br /> <br /> <div style="border-right: #cccccc 1px solid; padding-right: 5px; border-top: #cccccc 1px solid; padding-left: 4px; font-size: 13px; padding-bottom: 4px; border-left: #cccccc 1px solid; width: 98%; word-break: break-all; padding-top: 4px; border-bottom: #cccccc 1px solid; background-color: #eeeeee"><span style="color: #000000">鍙互鐪嬪嚭鍦ㄤ互GUID浣滀負(fù)涓婚敭鐨勮〃涓姞涓涓椂闂寸被鍨嬫垨鏄疘nt綾誨瀷鐨勭儲寮曞彲浠ュ譏琛ヤ互GUID浣滀負(fù)涓婚敭甯︽潵鐨勬ц兘鎹熷け銆?br /> <br /> </span><span style="color: #000000">3</span><span style="color: #000000">銆佽繖鏍峰仛鏄負(fù)浜嗘ā鎷熺幇瀹炰嬌鐢ㄦ儏鍐碉紝褰撶劧榪欐牱寰堢墖闈紝鍥犱負(fù)鍦ㄥ鉤鏃朵嬌鐢ㄨ繃紼嬩腑錛岀粡甯哥敤鍒板垎欏碉紝璁＄畻鏁版嵁鎬繪暟錛岀洰鐨勬槸鐪嬬湅鍦ㄥ鏋滃湪琛ㄤ腑涓嶅彟澶栧姞绱㈠紩浼?xì)涓嶄細(xì)濯?jiǎng)鍝嶈綆楁晥鐜囷紝鐪嬫潵鐢℅UID浣滀負(fù)涓婚敭蹇呴』瑕佸彟澶栧姞绱㈠紩鎵嶈兘淇濊瘉鍏ount榪欐牱鐨勮綆椾笉鑷充簬娑堣楀お澶氭椂闂達(dá)紝浣嗘槸鐢╥nt綾誨瀷濂藉儚灝變笉浼?xì)娑堣楀お澶氭椂闂寸殑錛屾墍浠ヨ繖鏍蜂竴姣旇緝?yōu)q湅鍑猴紝<span style="color: #ff0000">濡傛灉鐢╲archar瀛楁綾誨瀷鍋氫富閿殑琛紝琛ㄥ唴涓瀹氶渶瑕佷釜闈炶仛闆嗙儲寮?/span>銆?nbsp;</span></div> <br /> <img src ="http://www.tkk7.com/kiant/aggbug/318833.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/kiant/" target="_blank">榛勫皬浜?/a> 2010-04-20 11:52 <a href="http://www.tkk7.com/kiant/articles/318833.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>[杞琞 璇︾粏璁茶В鎻愰珮鏁版嵁搴撴煡璇㈡晥鐜囩殑瀹炵敤鏂規(guī)硶http://www.tkk7.com/kiant/articles/226717.html榛勫皬浜?/dc:creator>榛勫皬浜?/author>Wed, 03 Sep 2008 09:08:00 GMThttp://www.tkk7.com/kiant/articles/226717.htmlhttp://www.tkk7.com/kiant/comments/226717.htmlhttp://www.tkk7.com/kiant/articles/226717.html#Feedback0http://www.tkk7.com/kiant/comments/commentRss/226717.htmlhttp://www.tkk7.com/kiant/services/trackbacks/226717.htmlhttp://tech.c114.net/501/a267960.html


1.瀵規(guī)煡璇㈣繘琛屼紭鍖栵紝搴斿敖閲忛伩鍏嶅叏琛ㄦ壂鎻忥紝棣栧厛搴旇冭檻鍦?where 鍙?order by 娑夊強(qiáng)鐨勫垪涓婂緩绔嬬儲寮曘?



2.搴斿敖閲忛伩鍏嶅湪 where 瀛愬彞涓瀛楁榪涜 null 鍊煎垽鏂紝鍚﹀垯灝嗗鑷村紩鎿庢斁寮冧嬌鐢ㄧ儲寮曡岃繘琛屽叏琛ㄦ壂鎻忥紝濡傦細(xì)
select id from t where num is null

鍙互鍦╪um涓婅緗粯璁ゅ?錛岀‘淇濊〃涓璶um鍒楁病鏈塶ull鍊鹼紝鐒跺悗榪欐牱鏌ヨ錛?
select id from t where num=0



3.搴斿敖閲忛伩鍏嶅湪 where 瀛愬彞涓嬌鐢?=鎴?lt;>鎿嶄綔絎︼紝鍚﹀垯灝嗗紩鎿庢斁寮冧嬌鐢ㄧ儲寮曡岃繘琛屽叏琛ㄦ壂鎻忋?



4.搴斿敖閲忛伩鍏嶅湪 where 瀛愬彞涓嬌鐢?or 鏉ヨ繛鎺ユ潯浠訛紝鍚﹀垯灝嗗鑷村紩鎿庢斁寮冧嬌鐢ㄧ儲寮曡岃繘琛屽叏琛ㄦ壂鎻忥紝濡傦細(xì)
select id from t where num=10 or num=20

鍙互榪欐牱鏌ヨ錛?
select id from t where num=10
union all
select id from t where num=20



5.in 鍜?not in 涔熻鎱庣敤錛屽惁鍒欎細(xì)瀵艱嚧鍏ㄨ〃鎵弿錛屽錛?
select id from t where num in(1,2,3)

瀵逛簬榪炵畫鐨勬暟鍊鹼紝鑳界敤 between 灝變笉瑕佺敤 in 浜嗭細(xì)
select id from t where num between 1 and 3



6.涓嬮潰鐨勬煡璇篃灝嗗鑷村叏琛ㄦ壂鎻忥細(xì)
select id from t where name like '%abc%'

鑻ヨ鎻愰珮鏁堢巼錛屽彲浠ヨ冭檻鍏ㄦ枃媯(gè)绱€?



7.濡傛灉鍦?where 瀛愬彞涓嬌鐢ㄥ弬鏁幫紝涔熶細(xì)瀵艱嚧鍏ㄨ〃鎵弿銆傚洜涓篠QL鍙湁鍦ㄨ繍琛屾椂鎵嶄細(xì)瑙ｆ瀽灞閮ㄥ彉閲忥紝浣嗕紭鍖栫▼搴忎笉鑳藉皢璁塊棶璁″垝鐨勯夋嫨鎺ㄨ繜鍒拌繍琛屾椂錛涘畠蹇呴』鍦ㄧ紪璇戞椂榪涜閫夋嫨銆傜劧鑰岋紝濡傛灉鍦ㄧ紪璇戞椂寤虹珛璁塊棶璁″垝錛屽彉閲忕殑鍊艱繕鏄湭鐭ョ殑錛屽洜鑰屾棤娉曚綔涓虹儲寮曢夋嫨鐨勮緭鍏ラ」銆傚涓嬮潰璇彞灝嗚繘琛屽叏琛ㄦ壂鎻忥細(xì)
select id from t where num=@num

鍙互鏀逛負(fù)寮哄埗鏌ヨ浣跨敤绱㈠紩錛?
select id from t with(index(绱㈠紩鍚?) where num=@num



8.搴斿敖閲忛伩鍏嶅湪 where 瀛愬彞涓瀛楁榪涜琛ㄨ揪寮忔搷浣滐紝榪欏皢瀵艱嚧寮曟搸鏀懼純浣跨敤绱㈠紩鑰岃繘琛屽叏琛ㄦ壂鎻忋傚錛?
select id from t where num/2=100

搴旀敼涓?
select id from t where num=100*2



9.搴斿敖閲忛伩鍏嶅湪where瀛愬彞涓瀛楁榪涜鍑芥暟鎿嶄綔錛岃繖灝嗗鑷村紩鎿庢斁寮冧嬌鐢ㄧ儲寮曡岃繘琛屽叏琛ㄦ壂鎻忋傚錛?
select id from t where substring(name,1,3)='abc'--name浠bc寮澶寸殑id
select id from t where datediff(day,createdate,'2005-11-30')=0--‘2005-11-30’鐢熸垚鐨刬d

搴旀敼涓?
select id from t where name like 'abc%'
select id from t where createdate>='2005-11-30' and createdate<'2005-12-1'



10.涓嶈鍦?where 瀛愬彞涓殑“=”宸﹁竟榪涜鍑芥暟銆佺畻鏈繍綆楁垨鍏朵粬琛ㄨ揪寮忚繍綆楋紝鍚﹀垯緋葷粺灝嗗彲鑳芥棤娉曟紜嬌鐢ㄧ儲寮曘?



11.鍦ㄤ嬌鐢ㄧ儲寮曞瓧孌典綔涓烘潯浠舵椂錛屽鏋滆绱㈠紩鏄鍚堢儲寮曪紝閭ｄ箞蹇呴』浣跨敤鍒拌绱㈠紩涓殑絎竴涓瓧孌典綔涓烘潯浠舵椂鎵嶈兘淇濊瘉緋葷粺浣跨敤璇ョ儲寮曪紝鍚﹀垯璇ョ儲寮曞皢涓嶄細(xì)琚嬌鐢紝騫朵笖搴斿敖鍙兘鐨勮瀛楁欏哄簭涓庣儲寮曢『搴忕浉涓鑷淬?



12.涓嶈鍐欎竴浜涙病鏈夋剰涔夌殑鏌ヨ錛屽闇瑕佺敓鎴愪竴涓┖琛ㄧ粨鏋勶細(xì)
select col1,col2 into #t from t where 1=0

榪欑被浠ｇ爜涓嶄細(xì)榪斿洖浠諱綍緇撴灉闆嗭紝浣嗘槸浼?xì)娑堣楃郴緇熻祫婧愮殑錛屽簲鏀規(guī)垚榪欐牱錛?
create table #t(...)



13.寰堝鏃跺欑敤 exists 浠ｆ浛 in 鏄竴涓ソ鐨勯夋嫨錛?
select num from a where num in(select num from b)

鐢ㄤ笅闈㈢殑璇彞鏇挎崲錛?
select num from a where exists(select 1 from b where num=a.num)



14.騫朵笉鏄墍鏈夌儲寮曞鏌ヨ閮芥湁鏁堬紝SQL鏄牴鎹〃涓暟鎹潵榪涜鏌ヨ浼樺寲鐨勶紝褰撶儲寮曞垪鏈夊ぇ閲忔暟鎹噸澶嶆椂錛孲QL鏌ヨ鍙兘涓嶄細(xì)鍘誨埄鐢ㄧ儲寮曪紝濡備竴琛ㄤ腑鏈夊瓧孌祍ex錛宮ale銆乫emale鍑犱箮鍚勪竴鍗婏紝閭ｄ箞鍗充嬌鍦╯ex涓婂緩浜嗙儲寮曚篃瀵規(guī)煡璇㈡晥鐜囪搗涓嶄簡浣滅敤銆?



15.绱㈠紩騫朵笉鏄秺澶氳秺濂斤紝绱㈠紩鍥虹劧鍙互鎻愰珮鐩稿簲鐨?select 鐨勬晥鐜囷紝浣嗗悓鏃朵篃闄嶄綆浜?insert 鍙?update 鐨勬晥鐜囷紝鍥犱負(fù) insert 鎴?update 鏃舵湁鍙兘浼?xì)閲嶅缓鐑﹀紩锛屾墍浠ユ庢牱寤虹儲寮曢渶瑕佹厧閲嶈冭檻錛岃鍏蜂綋鎯呭喌鑰屽畾銆備竴涓〃鐨勭儲寮曟暟鏈濂戒笉瑕佽秴榪?涓紝鑻ュお澶氬垯搴旇冭檻涓浜涗笉甯鎬嬌鐢ㄥ埌鐨勫垪涓婂緩鐨勭儲寮曟槸鍚︽湁蹇呰銆?



16.搴斿敖鍙兘鐨勯伩鍏嶆洿鏂?clustered 绱㈠紩鏁版嵁鍒楋紝鍥犱負(fù) clustered 绱㈠紩鏁版嵁鍒楃殑欏哄簭灝辨槸琛ㄨ褰曠殑鐗╃悊瀛樺偍欏哄簭錛屼竴鏃﹁鍒楀兼敼鍙樺皢瀵艱嚧鏁翠釜琛ㄨ褰曠殑欏哄簭鐨勮皟鏁達(dá)紝浼?xì)鑰楄垂鐩稿綋澶х殑璧勬簮銆傝嫢搴旂敤緋葷粺闇瑕侀綣佹洿鏂?clustered 绱㈠紩鏁版嵁鍒楋紝閭ｄ箞闇瑕佽冭檻鏄惁搴斿皢璇ョ儲寮曞緩涓?clustered 绱㈠紩銆?



17.灝介噺浣跨敤鏁板瓧鍨嬪瓧孌碉紝鑻ュ彧鍚暟鍊間俊鎭殑瀛楁灝介噺涓嶈璁捐涓哄瓧絎﹀瀷錛岃繖浼?xì)闄嶄綆鏌ヨ鍜寴q炴帴鐨勬ц兘錛屽茍浼?xì)澧炲姞瀛樺偍寮閿銆傝繖鏄洜涓哄紩鎿庡湪澶勭悊鏌ヨ鍜岃繛鎺ユ椂浼?xì)閫愪釜姣旇緝瀛楃涓蹭腑姣忎竴涓瓧絎︼紝鑰屽浜庢暟瀛楀瀷鑰岃█鍙渶瑕佹瘮杈冧竴嬈″氨澶熶簡銆?



18.灝藉彲鑳界殑浣跨敤 varchar/nvarchar 浠ｆ浛 char/nchar 錛屽洜涓洪鍏堝彉闀垮瓧孌靛瓨鍌ㄧ┖闂村皬錛屽彲浠ヨ妭鐪佸瓨鍌ㄧ┖闂達(dá)紝鍏舵瀵逛簬鏌ヨ鏉ヨ錛屽湪涓涓浉瀵硅緝?yōu)畯鐨勫瓧娈靛唴鎼滅储鏁堢巼鏄剧劧瑕侀珮浜涖?



19.浠諱綍鍦版柟閮戒笉瑕佷嬌鐢?select * from t 錛岀敤鍏蜂綋鐨勫瓧孌靛垪琛ㄤ唬鏇?#8220;*”錛屼笉瑕佽繑鍥炵敤涓嶅埌鐨勪換浣曞瓧孌點(diǎn)?



20.灝介噺浣跨敤琛ㄥ彉閲忔潵浠ｆ浛涓存椂琛ㄣ傚鏋滆〃鍙橀噺鍖呭惈澶ч噺鏁版嵁錛岃娉ㄦ剰绱㈠紩闈炲父鏈夐檺錛堝彧鏈変富閿儲寮曪級銆?



21.閬垮厤棰戠箒鍒涘緩鍜屽垹闄や復(fù)鏃惰〃錛屼互鍑忓皯緋葷粺琛ㄨ祫婧愮殑娑堣椼?



22.涓存椂琛ㄥ茍涓嶆槸涓嶅彲浣跨敤錛岄傚綋鍦頒嬌鐢ㄥ畠浠彲浠ヤ嬌鏌愪簺渚嬬▼鏇存湁鏁堬紝渚嬪錛屽綋闇瑕侀噸澶嶅紩鐢ㄥぇ鍨嬭〃鎴栧父鐢ㄨ〃涓殑鏌愪釜鏁版嵁闆嗘椂銆備絾鏄紝瀵逛簬涓嬈℃т簨浠訛紝鏈濂戒嬌鐢ㄥ鍑鴻〃銆?



23.鍦ㄦ柊寤轟復(fù)鏃惰〃鏃訛紝濡傛灉涓嬈℃ф彃鍏ユ暟鎹噺寰堝ぇ錛岄偅涔堝彲浠ヤ嬌鐢?select into 浠ｆ浛 create table錛岄伩鍏嶉犳垚澶ч噺 log 錛屼互鎻愰珮閫熷害錛涘鏋滄暟鎹噺涓嶅ぇ錛屼負(fù)浜嗙紦鍜岀郴緇熻〃鐨勮祫婧愶紝搴斿厛create table錛岀劧鍚巌nsert銆?



24.濡傛灉浣跨敤鍒頒簡涓存椂琛紝鍦ㄥ瓨鍌ㄨ繃紼嬬殑鏈鍚庡姟蹇呭皢鎵鏈夌殑涓存椂琛ㄦ樉寮忓垹闄わ紝鍏?truncate table 錛岀劧鍚?drop table 錛岃繖鏍峰彲浠ラ伩鍏嶇郴緇熻〃鐨勮緝闀挎椂闂撮攣瀹氥?



25.灝介噺閬垮厤浣跨敤娓告爣錛屽洜涓烘父鏍囩殑鏁堢巼杈冨樊錛屽鏋滄父鏍囨搷浣滅殑鏁版嵁瓚呰繃1涓囪錛岄偅涔堝氨搴旇鑰冭檻鏀瑰啓銆?



26.浣跨敤鍩轟簬娓告爣鐨勬柟娉曟垨涓存椂琛ㄦ柟娉曚箣鍓嶏紝搴斿厛瀵繪壘鍩轟簬闆嗙殑瑙ｅ喅鏂規(guī)鏉ヨВ鍐抽棶棰橈紝鍩轟簬闆嗙殑鏂規(guī)硶閫氬父鏇存湁鏁堛?



27.涓庝復(fù)鏃惰〃涓鏍鳳紝娓告爣騫朵笉鏄笉鍙嬌鐢ㄣ傚灝忓瀷鏁版嵁闆嗕嬌鐢?FAST_FORWARD 娓告爣閫氬父瑕佷紭浜庡叾浠栭愯澶勭悊鏂規(guī)硶錛屽挨鍏舵槸鍦ㄥ繀欏誨紩鐢ㄥ嚑涓〃鎵嶈兘鑾峰緱鎵闇鐨勬暟鎹椂銆傚湪緇撴灉闆嗕腑鍖呮嫭“鍚堣”鐨勪緥紼嬮氬父瑕佹瘮浣跨敤娓告爣鎵ц鐨勯熷害蹇傚鏋滃紑鍙戞椂闂村厑璁革紝鍩轟簬娓告爣鐨勬柟娉曞拰鍩轟簬闆嗙殑鏂規(guī)硶閮藉彲浠ュ皾璇曚竴涓嬶紝鐪嬪摢涓縐嶆柟娉曠殑鏁堟灉鏇村ソ銆?



28.鍦ㄦ墍鏈夌殑瀛樺偍榪囩▼鍜岃Е鍙戝櫒鐨勫紑濮嬪璁劇疆 SET NOCOUNT ON 錛屽湪緇撴潫鏃惰緗?SET NOCOUNT OFF 銆傛棤闇鍦ㄦ墽琛屽瓨鍌ㄨ繃紼嬪拰瑙﹀彂鍣ㄧ殑姣忎釜璇彞鍚庡悜瀹㈡埛绔彂閫?DONE_IN_PROC 娑堟伅銆?



29.灝介噺閬垮厤澶т簨鍔℃搷浣滐紝鎻愰珮緋葷粺騫跺彂鑳藉姏銆?



30.灝介噺閬垮厤鍚戝鎴風(fēng)榪斿洖澶ф暟鎹噺錛岃嫢鏁版嵁閲忚繃澶э紝搴旇鑰冭檻鐩稿簲闇姹傛槸鍚﹀悎鐞嗐?


 



]]>[杞琞 SQL緙栫爜瑙勮寖(鏀墮泦) & 鏁版嵁搴撹璁＄粡楠岃皥(杞?http://www.tkk7.com/kiant/articles/226459.html榛勫皬浜?/dc:creator>榛勫皬浜?/author>Tue, 02 Sep 2008 10:03:00 GMThttp://www.tkk7.com/kiant/articles/226459.htmlhttp://www.tkk7.com/kiant/comments/226459.htmlhttp://www.tkk7.com/kiant/articles/226459.html#Feedback0http://www.tkk7.com/kiant/comments/commentRss/226459.htmlhttp://www.tkk7.com/kiant/services/trackbacks/226459.html 鏁版嵁搴撹璁＄粡楠岃皥(杞?
SQL緙栫爜瑙勮寖(鏀墮泦)   http://hi.baidu.com/rambochow/blog/item/3ebcbb3db3758903bba16743.html



1.涔﹀啓鏍煎紡 


銆銆 2.涓嶇瓑浜庣粺涓浣跨敤"<>"銆傝櫧鐒?SQLServer璁や負(fù)"!="鍜?<>"鏄瓑浠風(fēng)殑錛岄兘浠ｈ〃涓嶇瓑浜庣殑鎰忎箟銆備負(fù)浜嗙粺涓錛屼笉絳変簬涓寰嬩嬌鐢?<>"琛ㄧず

銆銆 3.浣跨敤琛ㄧ殑鍒悕, 鏁版嵁搴撴煡璇紝蹇呴』浣跨敤琛ㄧ殑鍒悕銆?/p>

銆銆 4.SQL鏂囧琛ㄥ瓧孌墊墿灞曠殑鍏煎鎬с傚湪C#閲屼嬌鐢⊿elect *鏃訛紝涓ョ閫氳繃getString(1)鐨勫艦寮忓緱鍒版煡璇㈢粨鏋滐紝蹇呴』浣跨敤getString("瀛楁鍚?)鐨勫艦寮忥紱浣跨敤Insert鏃訛紝蹇呴』鎸囧畾鎻掑叆鐨勫瓧孌靛悕錛屼弗紱佷笉鎸囧畾瀛楁鍚嶇洿鎺ユ彃鍏alues銆銆

銆銆 5.鍑忓皯瀛愭煡璇㈢殑浣跨敤銆傚瓙鏌ヨ闄や簡鍙鎬у樊涔嬪錛岃繕鍦ㄤ竴瀹氱▼搴︿笂褰卞搷浜哠QL榪愯鏁堢巼錛岃灝介噺鍑忓皯浣跨敤瀛愭煡璇㈢殑浣跨敤錛岀敤鍏朵粬鏁堢巼鏇撮珮銆佸彲璇繪ф洿濂界殑鏂瑰紡鏇夸唬銆傘銆

銆銆 6.閫傚綋娣誨姞绱㈠紩浠ユ彁楂樻煡璇㈡晥鐜囷紝閫傚綋娣誨姞绱㈠紩鍙互澶у箙搴︾殑鎻愰珮?gòu)個(gè)绱㈤熷害錛岃鍙傜湅SQLSERVER SQL鎬ц兘浼樺寲緋誨垪銆?br />



7.瀵規(guī)暟鎹簱琛ㄦ搷浣滅殑鐗規(guī)畩瑕佹眰銆


8.鐢ㄦ墽琛岃鍒掑垎鏋怱QL鎬ц兘銆銆
銆銆 EXPLAIN PLAN鏄竴涓緢濂界殑鍒嗘瀽SQL璇彞鐨勫伐鍏鳳紝瀹冨彲浠ュ湪涓嶆墽琛孲QL鐨勬儏鍐典笅鍒嗘瀽璇彞銆傞氳繃鍒嗘瀽錛屾垜浠氨鍙互鐭ラ亾SQLSERVER鏄庢牱榪炴帴琛紝浣跨敤浠涔堟柟寮忔壂鎻忚〃錛堢儲寮曟壂鎻忔垨鍏ㄨ〃鎵弿錛夛紝浠ュ強(qiáng)浣跨敤鍒扮殑绱㈠紩鍚嶇О錛屾寜鐓т粠閲屽埌澶栵紝浠庝笂鍒頒笅鐨勬搴忚В璇誨垎鏋愮殑緇撴灉錛孍XPLAIN PLAN鐨勫垎鏋愮粨鏋滄槸鐢ㄧ緝榪涚殑鏍煎紡鎺掑垪鐨勶紝鏈鍐呴儴鐨勬搷浣滃皢鏈鍏堣瑙ｈ錛屽鏋滀袱涓搷浣滃浜庡悓涓灞備腑錛屽甫鏈夋渶灝忔搷浣滃彿鐨勫皢棣栧厛琚墽琛屻傜洰鍓嶈澶氱涓夋柟鐨勫伐鍏峰PLSQL Developer鍜孴OAD絳夐兘鎻愪緵浜嗘瀬鍏舵柟渚跨殑EXPLAIN PLAN宸ュ叿錛孭G闇瑕佸皢鑷繁娣誨姞鐨勬煡璇QL鏂囪鍏og錛岀劧鍚庡湪EXPLAIN PLAN涓繘琛屽垎鏋愶紝灝介噺鍑忓皯鍏ㄨ〃鎵弿錛?/fieldset>



]]>鍒╃敤PowerDesigner鏋勫緩PDM鐨勫績寰?/title><link>http://www.tkk7.com/kiant/articles/213533.html</link><dc:creator>榛勫皬浜?/dc:creator><author>榛勫皬浜?/author><pubDate>Wed, 09 Jul 2008 02:10:00 GMT</pubDate><guid>http://www.tkk7.com/kiant/articles/213533.html</guid><wfw:comment>http://www.tkk7.com/kiant/comments/213533.html</wfw:comment><comments>http://www.tkk7.com/kiant/articles/213533.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/kiant/comments/commentRss/213533.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/kiant/services/trackbacks/213533.html</trackback:ping><description><![CDATA[        “宸ユ鍠勫叾浜嬶紝蹇呭厛鍒╁叾鍣ㄣ?#8221;閫氳繃鏋勫緩PD鐨勭墿鐞嗘暟鎹ā鍨嬶紝鎴戜滑鍙互鏂逛究鐩磋鐨勫鏁版嵁搴撹繘琛屽紑鍙戝拰緇存姢銆傝屼笖鍦ㄥ涔?fàn)杩嚱E嬩腑錛屼篃鏃犵枒鐨勫鏁版嵁搴撶殑璁捐鏈変簡鏇存繁涓灞傜殑鐞嗚В銆?nbsp;<br /> <br />         鏂板緩騫墮夋嫨濂界浉搴旂被鍨婦BMS鍚庢垜浠氨鍙互鐫鎵嬫ā鍨嬬殑鐜閰嶇疆浜嗐?br /> <br />         1銆佸垱寤轟笟鍔¤鍒?<span lang="EN-US">Model->Business Rules</span>)<br />         濡傛灉寤虹珛楠岃瘉瑙勫垯涓庡垪鎴栧煙涔嬮棿鐨勮仈緋伙紝灝卞彲浠ヨ繃閫氳繃涓氬姟楠岃瘉瑙勫垯鏉ユ鏌ュ弬鏁般?br />         ps:  鏂瑰紡(Type)涓洪獙璇侊紙<span lang="EN-US">Validation</span><span style="font-family: 瀹嬩綋;">錛夊拰綰︽潫錛?/span><span lang="EN-US">Constraint</span><span style="font-family: 瀹嬩綋;">錛夌被鍨嬬殑涓氬姟瑙勫垯錛岀粦瀹氫簬PDM瀵硅薄鐨凴ules灞炴э紝鑳界敓鎴愮浉搴旂殑鏁版嵁搴撲唬鐮併?/span><br />          <br />         2銆佽瀹氶粯璁ゅ煎璞?<span lang="EN-US">Model->Defaults</span>)<br />         榛樿鍊煎叾瀹炴槸鏁版嵁搴撻噷闈㈢殑涓縐嶅璞★紝鎴戜滑鍙互璁懼畾鏁版嵁搴撶殑鍏叡榛樿鍊兼潵綆鍖栧悗緇殑鎿嶄綔銆備竴鑸潵璇達(dá)紝榛樿鏄璞℃湁鏁板煎瀷榛樿鍊箋佸瓧絎︿覆鍨嬮粯璁ゅ煎拰鏃ユ湡鍨嬮粯璁ゅ間笁縐嶃?nbsp;<br /> <br />         3銆佽瀹氬煙瀵硅薄(<span lang="EN-US">Model-></span>Domain)錛屽茍緇戝畾榛樿鍊?br />         鍩熸槸PDM妯″瀷涓殑淇℃伅綾誨瀷,鍦ㄦ暟鎹簱閲岀О涓哄埆鍚嶆暟鎹被鍨嬨備嬌鐢ㄥ煙鍙互鏂逛究鐨勪嬌鏁版嵁綾誨瀷鏍囧噯鍖栥傜粦瀹氫簡榛樿鍊煎璞＄殑鍩燂紝鐢ㄤ簬蹇熷畾涔夊悇琛ㄤ腑鍒楁暟鎹被鍨嬪強(qiáng)榛樿鍊肩瓑灞炴с?br /> <br />         4銆佽瀹氬垪瀵硅薄涓洪潪絀?nbsp;not null<br />         鍒╃敤緇戝畾榛樿鍊肩殑鍩熷璞℃潵璁劇疆鍒楀睘鎬э紝闃叉浠ｇ爜璇誨彇瀛楁鏃惰幏寰桸ULL瀵硅薄錛岀畝鍖栧悗鏈熺殑宸ヤ綔銆?br /> <br /> <br />         鍦ㄨ繖閲屽Slash鍏堢敓琛ㄨ揪琛ㄨ揪鎴戠殑璋㈡剰錛屼粬鍒朵綔鐨?#8220;PowerDesigner 涓枃鏁欑▼”瀵規(guī)垜甯姪寰堝ぇ錛屼嬌鎴戣幏鐩婇潪嫻呫?br />          <img src ="http://www.tkk7.com/kiant/aggbug/213533.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/kiant/" target="_blank">榛勫皬浜?/a> 2008-07-09 10:10 <a href="http://www.tkk7.com/kiant/articles/213533.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 href="http://www.tkk7.com/" title="亚洲av成人片在线观看">亚洲av成人片在线观看</a> <div class="friend-links"> </div> </div> </footer> 主站蜘蛛池模板： <a href="http://xmm5pkt.com" target="_blank">女人张开腿给人桶免费视频</a>| <a href="http://haohaoshuo.com" target="_blank">一个人看的www在线免费视频</a>| <a href="http://xuexilo.com" target="_blank">黄网站色视频免费在线观看的a站最新</a>| <a href="http://wogool.com" target="_blank">mm1313亚洲精品国产</a>| <a href="http://ranjihua.com" target="_blank">99亚洲精品卡2卡三卡4卡2卡</a>| <a href="http://www2019rz.com" target="_blank">成人免费777777</a>| <a href="http://96yizhi.com" target="_blank">亚洲av中文无码字幕色不卡</a>| <a 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