| 澶辨晥閾炬帴澶勭悊 |
|
oracle鍩虹浣撶郴鏋舵瀯 PDF 涓嬭澆
鏈珯鏁寸悊涓嬭澆錛?/strong>
閾炬帴錛?a target="_blank">https://pan.baidu.com/s/1OYK0VYtZ6XHHd7fcezpxGQ
鎻愬彇鐮侊細1234
鐩稿叧鎴浘錛?br />
 涓昏鍐呭錛?/strong>
Oracle-浣撶郴緇撴瀯鍥?/strong>
鏁版嵁搴擄紙Database錛?/strong>
鏁版嵁搴撴槸涓€涓暟鎹殑闆嗗悎錛屼笉浠呮槸鎸囩墿鐞嗕笂鐨勬暟鎹紝涔熸寚鐗╃悊銆佸瓨鍌ㄥ強榪涚▼瀵硅薄鐨勪竴涓粍鍚堛€侽racle鏄竴涓熀浜嶣/S妯″紡鐨勫叧緋誨瀷鏁版嵁搴撶鐞嗙郴緇燂紙RDBMS錛夈€?/strong>
Oracle緋葷粺浣撶郴緇撴瀯鐢變笁閮ㄥ垎緇勬垚錛氶€昏緫緇撴瀯銆佺墿鐞嗙粨鏋勫拰瀹炰緥銆?/strong>
鏁版嵁搴擄紙Database錛?/strong>
鏁版嵁搴撴槸涓€涓暟鎹殑闆嗗悎錛屼笉浠呮槸鎸囩墿鐞嗕笂鐨勬暟鎹紝涔熸寚鐗╃悊銆佸瓨鍌ㄥ強榪涚▼瀵硅薄鐨勪竴涓粍鍚堛€侽racle鏄竴涓熀浜嶣/S妯″紡鐨勫叧緋誨瀷鏁版嵁搴撶鐞嗙郴緇燂紙RDBMS錛夈€?/strong>
Oracle緋葷粺浣撶郴緇撴瀯鐢變笁閮ㄥ垎緇勬垚錛氶€昏緫緇撴瀯銆佺墿鐞嗙粨鏋勫拰瀹炰緥銆?/strong>
涓€銆丱racle鐨勯€昏緫緇撴瀯
Oracle鐨勯€昏緫緇撴瀯鏄竴縐嶅眰嬈＄粨鏋勩€備富瑕佺敱錛氳〃絀洪棿銆佹銆佸尯鍜屾暟鎹潡絳夋蹇電粍鎴愩€傞€昏緫緇撴瀯鏄潰鍚戠敤鎴風殑錛岀敤鎴蜂嬌鐢∣racle寮€鍙戝簲鐢ㄧ▼搴忎嬌鐢ㄧ殑灝辨槸閫昏緫緇撴瀯銆傛暟鎹簱瀛樺偍灞傛緇撴瀯鍙婂叾鏋勬垚鍏崇郴,緇撴瀯瀵硅薄涔熶粠鏁版嵁鍧楀埌琛ㄧ┖闂村艦鎴愪簡涓嶅悓灞傛鐨勭矑搴﹀叧緋匯€?/strong>
1.鏁版嵁鍧楋紙Data Blocks錛?/strong>
鏁版嵁鍧楁槸Oracle鏈€灝忕殑瀛樺偍鍗曚綅錛孫racle鏁版嵁瀛樻斁鍦?ldquo;鍧?rdquo;涓€備竴涓潡鍗犵敤涓€瀹氱殑紓佺洏絀洪棿銆傜壒鍒敞鎰忕殑鏄紝榪欓噷鐨?ldquo;鍧?rdquo;鏄疧racle鐨?ldquo;鏁版嵁鍧?rdquo;錛屼笉鏄搷浣滅郴緇熺殑“鍧?rdquo;銆?/strong>
Oracle姣忔璇鋒眰鏁版嵁鐨勬椂鍊欙紝閮芥槸浠ュ潡涓哄崟浣嶃€備篃灝辨槸璇達紝Oracle姣忔璇鋒眰鐨勬暟鎹槸鍧楃殑鏁存暟鍊嶃€傚鏋淥racle璇鋒眰鐨勬暟鎹噺涓嶅埌涓€鍧楋紝Oracle涔熶細璇誨彇鏁翠釜鍧椼€傛墍浠ヨ錛?ldquo;鍧?rdquo;鏄疧racle璇誨啓鏁版嵁鐨勬渶灝忓崟浣嶆垨鑰呮渶鍩烘湰鐨勫崟浣嶃€?/strong>
鍧楃殑鏍囧噯澶у皬鐢卞垵濮嬪寲鍙傛暟DB_BLOCK_SIZE鎸囧畾銆傚叿鏈夋爣鍑嗗ぇ灝忕殑鍧楃О涓烘爣鍑嗗潡(Standard Block)銆傚潡鐨勫ぇ灝忓拰鏍囧噯鍧楃殑澶у皬涓嶅悓鐨勫潡鍙潪鏍囧噯鍧?Nonstandard Block)銆?/strong>
鎿嶄綔緋葷粺姣忔鎵цI/O鐨勬椂鍊欙紝鏄互鎿嶄綔緋葷粺鐨勫潡涓哄崟浣?Oracle姣忔鎵цI/O鐨勬椂鍊欙紝閮芥槸浠racle鐨勫潡涓哄崟浣嶃€?/strong>
Oracle鏁版嵁鍧楀ぇ灝忎竴鑸槸鎿嶄綔緋葷粺鍧楃殑鏁存暟鍊嶃€?/strong>
鏁版嵁鍧楃殑鏍煎紡(Data Block Format)
鍧椾腑瀛樻斁琛ㄧ殑鏁版嵁鍜岀儲寮曠殑鏁版嵁錛屾棤璁哄瓨鏀懼摢縐嶇被鍨嬬殑鏁版嵁錛屽潡鐨勬牸寮忛兘鏄浉鍚岀殑錛屽潡鐢卞潡澶?header/Common and Variable),琛ㄧ洰褰?Table Directory),琛岀洰褰?Row Directory),絀轟綑絀洪棿(Free Space)鍜岃鏁版嵁(Row Data)浜旈儴鍒嗙粍鎴愶紝濡備笅鍥?/strong>
|
| Java1234瀹樻柟緹?5錛?/td> | 
|
| Java1234瀹樻柟緹?5錛?/td> | 838462530 |
鑻忓叕緗戝畨澶?32061202001004鍙?/p>
