{"id":15740,"date":"2023-12-04T22:11:02","date_gmt":"2023-12-04T14:11:02","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15740"},"modified":"2023-12-04T22:19:02","modified_gmt":"2023-12-04T14:19:02","slug":"oracle-zhong-jie-shi-data-blockextent-he-segment-d","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-jie-shi-data-blockextent-he-segment-d\/","title":{"rendered":"Oracle \u4e2d\u89e3\u91ca data block\uff0cextent \u548c segment \u7684\u533a\u522b\uff1f"},"content":{"rendered":"

\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c"Data Block"\u3001"Extent" \u548c "Segment" \u662f\u6570\u636e\u5e93\u5b58\u50a8\u7ed3\u6784\u7684\u4e09\u4e2a\u4e0d\u540c\u5c42\u6b21\u3002\u4ee5\u4e0b\u662f\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\uff1a<\/p>\n

    \n
  1. \nData Block\uff08\u6570\u636e\u5757\uff09\uff1a<\/strong><\/p>\n
      \n
    • \u5b9a\u4e49\uff1a<\/strong> \u6570\u636e\u5e93\u4e2d\u5b58\u50a8\u6570\u636e\u7684\u6700\u5c0f\u5355\u4f4d\uff0c\u901a\u5e38\u5305\u542b\u591a\u4e2a\u6570\u636e\u5e93\u8bb0\u5f55\u3002<\/li>\n
    • \u5927\u5c0f\uff1a<\/strong> \u6570\u636e\u5757\u7684\u5927\u5c0f\u662f\u7531\u6570\u636e\u5e93\u521d\u59cb\u5316\u53c2\u6570\u51b3\u5b9a\u7684\uff0c\u901a\u5e38\u662f\u6570\u636e\u5e93\u7ba1\u7406\u7684\u6700\u5c0f\u5355\u4f4d\uff0c\u5178\u578b\u5927\u5c0f\u4e3a 4KB\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \nExtent\uff08\u533a\uff09\uff1a<\/strong><\/p>\n
        \n
      • \u5b9a\u4e49\uff1a<\/strong> \u7531\u591a\u4e2a\u8fde\u7eed\u7684\u6570\u636e\u5757\u7ec4\u6210\u7684\u903b\u8f91\u5b58\u50a8\u5355\u5143\u3002<\/li>\n
      • \u5927\u5c0f\uff1a<\/strong> Extent \u901a\u5e38\u5305\u542b\u591a\u4e2a\u6570\u636e\u5757\uff0c\u5176\u5927\u5c0f\u4e5f\u7531\u6570\u636e\u5e93\u521d\u59cb\u5316\u53c2\u6570\u63a7\u5236\u3002\u5f53\u6570\u636e\u5e93\u9700\u8981\u5206\u914d\u65b0\u7a7a\u95f4\u7ed9\u5bf9\u8c61\u65f6\uff0c\u4f1a\u4ee5 Extent \u4e3a\u5355\u4f4d\u8fdb\u884c\u5206\u914d\u3002<\/li>\n
      • \u7528\u9014\uff1a<\/strong> \u8868\u548c\u7d22\u5f15\u53ef\u4ee5\u8de8\u8d8a\u591a\u4e2a Extent\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \nSegment\uff08\u6bb5\uff09\uff1a<\/strong><\/p>\n
          \n
        • \u5b9a\u4e49\uff1a<\/strong> Segment \u662f\u4e00\u4e2a\u6216\u591a\u4e2a Extent \u7684\u96c6\u5408\uff0c\u5bf9\u5e94\u4e8e\u8868\u3001\u7d22\u5f15\u6216\u5206\u533a\u8868\u7b49\u6570\u636e\u5e93\u5bf9\u8c61\u3002<\/li>\n
        • \u7528\u9014\uff1a<\/strong> \u4e00\u4e2a\u8868\u6216\u7d22\u5f15\u81f3\u5c11\u6709\u4e00\u4e2a Segment\uff0c\u4f46\u4e5f\u53ef\u4ee5\u6709\u591a\u4e2a\u5206\u533a\u6bb5\uff0c\u6bcf\u4e2a\u5206\u533a\u6bb5\u5bf9\u5e94\u4e8e\u8868\u7684\u4e00\u4e2a\u5206\u533a\u3002<\/li>\n
        • \u7ba1\u7406\uff1a<\/strong> \u5728 Oracle \u4e2d\uff0cSegment \u662f\u7ba1\u7406\u5b58\u50a8\u7ed3\u6784\u7684\u4e3b\u8981\u5355\u4f4d\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u8868\uff0c\u6bcf\u4e2a\u5206\u533a\u90fd\u5bf9\u5e94\u4e00\u4e2a Segment\uff0c\u800c\u6574\u4e2a\u8868\u4e5f\u662f\u4e00\u4e2a Segment\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

          \u7b80\u8981\u6982\u62ec\uff1a<\/p>\n

            \n
          • Data Block<\/strong> \u662f\u6700\u5c0f\u7684\u5b58\u50a8\u5355\u4f4d\uff0c\u5b58\u653e\u5b9e\u9645\u7684\u6570\u636e\u8bb0\u5f55\u3002<\/li>\n
          • Extent<\/strong> \u662f\u7531\u4e00\u7ec4\u8fde\u7eed\u7684 Data Block \u7ec4\u6210\u7684\u903b\u8f91\u5b58\u50a8\u5355\u5143\uff0c\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u5e93\u5bf9\u8c61\u7684\u7a7a\u95f4\u3002<\/li>\n
          • Segment<\/strong> \u662f\u4e00\u4e2a\u6216\u591a\u4e2a Extent \u7684\u96c6\u5408\uff0c\u5bf9\u5e94\u4e8e\u8868\u3001\u7d22\u5f15\u6216\u5206\u533a\u8868\u7b49\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u662f\u7ba1\u7406\u6570\u636e\u5e93\u5b58\u50a8\u7ed3\u6784\u7684\u4e3b\u8981\u5355\u4f4d\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

            \u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c"Data Block"\u3001"Extent" […]<\/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-15740","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15740","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=15740"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15740\/revisions"}],"predecessor-version":[{"id":15741,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15740\/revisions\/15741"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15740"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}