{"id":15875,"date":"2023-12-04T23:24:20","date_gmt":"2023-12-04T15:24:20","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15875"},"modified":"2023-12-04T23:39:01","modified_gmt":"2023-12-04T15:39:01","slug":"oracle-zhong-jie-shi-data-blockextent-he-segment-d-2","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-jie-shi-data-blockextent-he-segment-d-2\/","title":{"rendered":"Oracle \u4e2d\u89e3\u91ca data block\uff0cextent \u548c segment \u7684\u533a\u522b\uff1f"},"content":{"rendered":"

\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u6570\u636e\u7684\u5b58\u50a8\u662f\u6309\u7167\u4e00\u5b9a\u7684\u5c42\u6b21\u7ed3\u6784\u7ec4\u7ec7\u7684\uff0c\u5305\u62ec Data Block\u3001Extent \u548c Segment\u3002\u4ee5\u4e0b\u662f\u5b83\u4eec\u7684\u533a\u522b\uff1a<\/p>\n

    \n
  1. \n\u6570\u636e\u5757\uff08Data Block\uff09\uff1a<\/strong><\/p>\n
      \n
    • \u6570\u636e\u5757\u662f Oracle \u5b58\u50a8\u6570\u636e\u7684\u6700\u57fa\u672c\u7684\u5355\u5143\u3002<\/li>\n
    • \u6570\u636e\u5757\u662f\u6570\u636e\u5e93\u4e2d\u6700\u5c0f\u7684\u5b58\u50a8\u5355\u4f4d\uff0c\u901a\u5e38\u5927\u5c0f\u4e3a 8KB\uff08\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u914d\u7f6e\u4e3a\u5176\u4ed6\u5927\u5c0f\uff09\u3002<\/li>\n
    • \u6bcf\u4e2a\u6570\u636e\u5757\u53ef\u4ee5\u5b58\u50a8\u8868\u7684\u4e00\u90e8\u5206\u884c\u6570\u636e\u3002\u5728\u6570\u636e\u5757\u4e2d\u5b58\u50a8\u5b9e\u9645\u7684\u8868\u6570\u636e\u4ee5\u53ca\u8868\u7684\u5143\u6570\u636e\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n\u533a\uff08Extent\uff09\uff1a<\/strong><\/p>\n
        \n
      • \u533a\u662f\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u8fde\u7eed\u7684\u6570\u636e\u5757\u7ec4\u6210\u7684\u4e00\u6bb5\u7a7a\u95f4\u3002<\/li>\n
      • \u533a\u662f\u4e00\u4e2a\u6bd4\u6570\u636e\u5757\u66f4\u5927\u7684\u5b58\u50a8\u5355\u4f4d\uff0c\u901a\u5e38\u5305\u542b\u591a\u4e2a\u76f8\u90bb\u7684\u6570\u636e\u5757\uff0c\u5b83\u4eec\u5728\u7269\u7406\u4e0a\u76f8\u90bb\u5e76\u4e14\u5c5e\u4e8e\u540c\u4e00\u4e2a\u5bf9\u8c61\uff08\u8868\u6216\u7d22\u5f15\uff09\u3002<\/li>\n
      • \u5f53\u8868\u6216\u7d22\u5f15\u9700\u8981\u66f4\u591a\u7684\u7a7a\u95f4\u65f6\uff0c\u7cfb\u7edf\u4f1a\u5206\u914d\u989d\u5916\u7684\u533a\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \n\u6bb5\uff08Segment\uff09\uff1a<\/strong><\/p>\n
          \n
        • \u6bb5\u662f\u4e00\u7ec4\u76f8\u90bb\u7684\u533a\uff0c\u6784\u6210\u4e86\u4e00\u4e2a\u903b\u8f91\u4e0a\u8fde\u7eed\u7684\u5b58\u50a8\u7a7a\u95f4\u3002<\/li>\n
        • \u6bb5\u662f\u8868\u3001\u7d22\u5f15\u6216\u8005\u8868\u5206\u533a\u7684\u5b58\u50a8\u7ed3\u6784\u3002\u4e00\u4e2a\u8868\u6216\u7d22\u5f15\u81f3\u5c11\u6709\u4e00\u4e2a\u6bb5\uff0c\u800c\u8868\u5206\u533a\u5219\u53ef\u4ee5\u6709\u591a\u4e2a\u6bb5\u3002<\/li>\n
        • \u4e00\u4e2a\u6bb5\u5305\u542b\u4e86\u8868\u7684\u6240\u6709\u6570\u636e\uff0c\u6216\u8005\u7d22\u5f15\u7684\u6240\u6709\u6761\u76ee\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

          \u5728\u8fd9\u4e2a\u5c42\u6b21\u7ed3\u6784\u4e2d\uff0c\u6570\u636e\u5757\u5b58\u50a8\u4e86\u5b9e\u9645\u7684\u884c\u6570\u636e\uff0c\u591a\u4e2a\u6570\u636e\u5757\u7ec4\u6210\u4e00\u4e2a\u533a\uff0c\u800c\u591a\u4e2a\u533a\u7ec4\u6210\u4e00\u4e2a\u6bb5\u3002\u6bb5\u662f\u8868\u3001\u7d22\u5f15\u6216\u8868\u5206\u533a\u7684\u6700\u9ad8\u7ea7\u522b\u7684\u5b58\u50a8\u5355\u4f4d\u3002<\/p>\n

          \u5f53\u8868\u6216\u7d22\u5f15\u9700\u8981\u66f4\u591a\u7684\u5b58\u50a8\u7a7a\u95f4\u65f6\uff0c\u7cfb\u7edf\u9996\u5148\u4f1a\u5206\u914d\u4e00\u4e2a\u6216\u591a\u4e2a\u533a\uff0c\u7136\u540e\u8fd9\u4e9b\u533a\u5c06\u88ab\u5206\u914d\u7ed9\u76f8\u5e94\u7684\u6bb5\u3002\u8fd9\u4e2a\u5206\u5c42\u7ed3\u6784\u5141\u8bb8 Oracle \u6570\u636e\u5e93\u66f4\u6709\u6548\u5730\u7ba1\u7406\u5b58\u50a8\u7a7a\u95f4\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u4f18\u5316\u548c\u7ba1\u7406\u7684\u624b\u6bb5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

          \u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u6570\u636e\u7684\u5b58\u50a8\u662f\u6309\u7167\u4e00\u5b9a\u7684\u5c42\u6b21\u7ed3\u6784\u7ec4\u7ec7\u7684\uff0c\u5305\u62ec Data Block\u3001Extent \u548c […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-15875","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=15875"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15875\/revisions"}],"predecessor-version":[{"id":15876,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15875\/revisions\/15876"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15875"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}