{"id":90805,"date":"2026-08-06T02:32:33","date_gmt":"2026-08-05T18:32:33","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/90805.html"},"modified":"2026-08-06T02:32:33","modified_gmt":"2026-08-05T18:32:33","slug":"mysql-%e6%95%b0%e6%8d%ae%e7%9b%ae%e5%bd%95%e4%b8%8e-innodb-%e8%a1%a8%e7%a9%ba%e9%97%b4%e5%ba%95%e5%b1%82%e5%ad%98%e5%82%a8%e5%85%a8%e6%99%af%e6%8f%ad%e7%a7%98","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/90805.html","title":{"rendered":"MySQL \u6570\u636e\u76ee\u5f55\u4e0e InnoDB \u8868\u7a7a\u95f4\u5e95\u5c42\u5b58\u50a8\u5168\u666f\u63ed\u79d8"},"content":{"rendered":"

MySQL \u6570\u636e\u5230\u5e95\u5b58\u5728\u54ea\u91cc？\u4ece\u6570\u636e\u76ee\u5f55\u5230 InnoDB \u8868\u7a7a\u95f4，\u4e00\u5c42\u5c42\u63ed\u5f00\u795e\u79d8\u9762\u7eb1<\/h2>\n

\u6458\u8981：\u6bcf\u6b21\u6267\u884c INSERT \u90fd\u611f\u89c9\u6570\u636e"\u6d88\u5931"\u8fdb\u4e86\u6570\u636e\u5e93，\u53ef\u5b83\u5b9e\u9645\u5b58\u5728\u78c1\u76d8\u7684\u54ea\u4e2a\u89d2\u843d？MySQL \u7684\u6570\u636e\u76ee\u5f55\u3001.ibd \u6587\u4ef6\u3001\u8868\u7a7a\u95f4\u3001\u533a\u3001\u6bb5\u2026\u8fd9\u4e9b\u6982\u5ff5\u4e4b\u95f4\u5230\u5e95\u662f\u4ec0\u4e48\u5173\u7cfb？\u672c\u6587\u5c06\u7528\u901a\u4fd7\u7684\u6bd4\u55bb\u548c\u56fe\u89e3，\u5e26\u4f60\u4ece\u6587\u4ef6\u7cfb\u7edf\u4e00\u8def\u8d70\u8fdb InnoDB \u8868\u7a7a\u95f4\u7684\u5185\u90e8\u4e16\u754c\u3002<\/p>\n

\n

\u4e00\u3001\u5199\u4e00\u6761 INSERT，\u6570\u636e\u53bb\u4e86\u54ea\u91cc？<\/h3>\n

\u5148\u6765\u4e00\u4e2a\u7075\u9b42\u62f7\u95ee：\u5f53\u4f60\u6267\u884c INSERT INTO users VALUES (1, '\u5f20\u4e09', 'zhangsan@example.com') \u65f6，\u8fd9\u6761\u8bb0\u5f55\u6700\u7ec8\u53bb\u4e86\u78c1\u76d8\u7684\u54ea\u4e2a\u89d2\u843d？<\/p>\n

\u7b54\u6848\u85cf\u5728\u4e00\u6761\u5c42\u5c42\u9012\u8fdb\u7684\u8def\u5f84\u91cc：<\/p>\n

\u4e00\u6761 INSERT \u8bed\u53e5
\n \u2502
\n \u25bc
\nMySQL Server \u63a5\u6536 SQL
\n \u2502
\n \u25bc
\nInnoDB \u5b58\u50a8\u5f15\u64ce\u5904\u7406
\n \u2502
\n \u25bc
\n\u627e\u5230\u5bf9\u5e94\u7684\u8868\u7a7a\u95f4（.ibd \u6587\u4ef6）
\n \u2502
\n \u25bc
\n\u5728 B+ \u6811\u7d22\u5f15\u4e2d\u627e\u5230\u63d2\u5165\u4f4d\u7f6e \u2192 \u5b9a\u4f4d\u5230\u5177\u4f53\u7684\u6570\u636e\u9875
\n \u2502
\n \u25bc
\n\u5c06\u8bb0\u5f55\u5199\u5165\u9875\u9762，\u6807\u8bb0\u4e3a"\u810f\u9875"
\n \u2502
\n \u25bc
\n\u540e\u53f0\u5237\u76d8\u7ebf\u7a0b\u5c06\u810f\u9875\u5199\u5165\u78c1\u76d8 \u2192 \u6700\u7ec8\u843d\u5230\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684 .ibd \u6587\u4ef6<\/p>\n

\u8fd9\u4e00\u8def\u4e0a\u6d89\u53ca\u7684\u6982\u5ff5\u2014\u2014\u6570\u636e\u76ee\u5f55\u3001\u8868\u7a7a\u95f4\u3001\u533a\u3001\u6bb5\u3001\u9875\u2014\u2014\u5c31\u662f\u672c\u6587\u8981\u9010\u4e2a\u62c6\u89e3\u7684\u5185\u5bb9\u3002<\/p>\n

\n

\u4e8c\u3001\u6570\u636e\u76ee\u5f55：\u6570\u636e\u5e93\u7684"\u5bb6"<\/h3>\n

2.1 \u6570\u636e\u76ee\u5f55 vs \u5b89\u88c5\u76ee\u5f55<\/h4>\n

\u5f88\u591a\u521d\u5b66\u8005\u5bb9\u6613\u628a\u8fd9\u4e24\u4e2a\u6982\u5ff5\u641e\u6df7，\u6240\u4ee5\u6211\u4eec\u5148\u6765\u505a\u4e00\u4e2a\u6e05\u6670\u7684\u533a\u5206：<\/p>\n

\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
\n\u2502 MySQL \u5b89\u88c5\u76ee\u5f55（\u5982 \/usr\/local\/mysql） \u2502
\n\u2502 \u251c\u2500\u2500 bin\/ \u2190 mysqld\u3001mysql\u3001mysqldump \u7b49\u53ef\u6267\u884c\u6587\u4ef6 \u2502
\n\u2502 \u251c\u2500\u2500 lib\/ \u2190 \u5e93\u6587\u4ef6 \u2502
\n\u2502 \u251c\u2500\u2500 include\/ \u2190 \u5934\u6587\u4ef6 \u2502
\n\u2502 \u2514\u2500\u2500 share\/ \u2190 \u9519\u8bef\u6d88\u606f\u3001\u5b57\u7b26\u96c6\u914d\u7f6e \u2502
\n\u2502 \u2502
\n\u2502 \u26a0\ufe0f \u8fd9\u662f\u7a0b\u5e8f\u7684"\u8eab\u4f53"，\u4e0d\u5b58\u7528\u6237\u6570\u636e \u2502
\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n

\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
\n\u2502 MySQL \u6570\u636e\u76ee\u5f55（\u5982 \/usr\/local\/var\/mysql） \u2502
\n\u2502 \u251c\u2500\u2500 \u6570\u636e\u5e931\/ \u2190 \u4f60\u521b\u5efa\u7684\u6bcf\u4e2a\u6570\u636e\u5e93\u662f\u4e00\u4e2a\u6587\u4ef6\u5939 \u2502
\n\u2502 \u251c\u2500\u2500 \u6570\u636e\u5e932\/ \u2502
\n\u2502 \u251c\u2500\u2500 ibdata1 \u2190 \u7cfb\u7edf\u8868\u7a7a\u95f4\u6587\u4ef6 \u2502
\n\u2502 \u251c\u2500\u2500 ib_logfile0 \u2190 redo \u65e5\u5fd7 \u2502
\n\u2502 \u2514\u2500\u2500 … \u2190 \u5404\u79cd\u8fd0\u884c\u65f6\u4ea7\u751f\u7684\u6570\u636e \u2502
\n\u2502 \u2502
\n\u2502 \u26a0\ufe0f \u8fd9\u662f\u6570\u636e\u7684"\u4ed3\u5e93"，\u6240\u6709\u8868\u8bb0\u5f55\u90fd\u5b58\u5728\u8fd9\u91cc \u2502
\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n

\u67e5\u770b\u6570\u636e\u76ee\u5f55\u7684\u51c6\u786e\u4f4d\u7f6e：<\/p>\n

mysql><\/span> SHOW<\/span> VARIABLES LIKE<\/span> 'datadir'<\/span>;<\/span>
\n+<\/span>—————+———————–+<\/span>
\n|<\/span> Variable_name |<\/span> Value<\/span> |<\/span>
\n+<\/span>—————+———————–+<\/span>
\n|<\/span> datadir |<\/span> \/<\/span>usr\/<\/span>local<\/span>\/<\/span>var\/<\/span>mysql\/<\/span> |<\/span>
\n+<\/span>—————+———————–+<\/span><\/p>\n

2.2 \u6570\u636e\u5e93\u5728\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u6837\u5b50<\/h4>\n

\u6bcf\u5f53\u4f60\u6267\u884c CREATE DATABASE mydb \u65f6，MySQL \u5728\u78c1\u76d8\u4e0a\u505a\u4e86\u4e24\u4ef6\u4e8b：<\/p>\n

  • \u5728\u6570\u636e\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a mydb \u7684\u5b50\u6587\u4ef6\u5939<\/li>\n
  • \u5728 mydb \u6587\u4ef6\u5939\u91cc\u521b\u5efa\u4e00\u4e2a db.opt \u6587\u4ef6，\u8bb0\u5f55\u8be5\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\u548c\u6bd4\u8f83\u89c4\u5219<\/li>\n

    \u6570\u636e\u76ee\u5f55\/
    \n\u251c\u2500\u2500 mysql\/ \u2190 mysql \u7cfb\u7edf\u5e93
    \n\u251c\u2500\u2500 information_schema\/ \u2190 \u7279\u6b8a\u5904\u7406，\u6ca1\u6709\u5b9e\u9645\u6587\u4ef6\u5939
    \n\u251c\u2500\u2500 performance_schema\/
    \n\u251c\u2500\u2500 sys\/
    \n\u251c\u2500\u2500 mydb\/ \u2190 \u4f60\u521b\u5efa\u7684\u6570\u636e\u5e93
    \n\u2502 \u2514\u2500\u2500 db.opt \u2190 \u6570\u636e\u5e93\u5c5e\u6027\u6587\u4ef6
    \n\u251c\u2500\u2500 ibdata1 \u2190 InnoDB \u7cfb\u7edf\u8868\u7a7a\u95f4
    \n\u251c\u2500\u2500 ib_logfile0 \u2190 redo \u65e5\u5fd7
    \n\u2514\u2500\u2500 ib_logfile1<\/p>\n

    2.3 \u8868\u5728\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u4e09\u4ef6\u5957<\/h4>\n

    \u5efa\u8868 CREATE TABLE test (c1 INT) \u65f6，MySQL \u9700\u8981\u5b58\u50a8\u4e24\u7c7b\u4fe1\u606f：<\/p>\n\n\u4fe1\u606f\u7c7b\u578b\u5185\u5bb9\u5b58\u50a8\u6587\u4ef6<\/tr>\n\n\n\n
    \u8868\u7ed3\u6784<\/td>\n\u5217\u540d\u3001\u6570\u636e\u7c7b\u578b\u3001\u7ea6\u675f\u3001\u7d22\u5f15\u3001\u5b57\u7b26\u96c6\u7b49<\/td>\n\u8868\u540d.frm<\/td>\n<\/tr>\n
    \u8868\u6570\u636e<\/td>\n\u5b9e\u9645\u63d2\u5165\u7684\u7528\u6237\u8bb0\u5f55<\/td>\n\u53d6\u51b3\u4e8e\u5b58\u50a8\u5f15\u64ce<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    .frm \u662f\u4e8c\u8fdb\u5236\u6587\u4ef6，\u76f4\u63a5\u6253\u5f00\u4f1a\u770b\u5230\u4e71\u7801\u2014\u2014\u5b83\u662f\u7ed9 MySQL \u7a0b\u5e8f\u8bfb\u7684，\u4e0d\u662f\u7ed9\u4eba\u8bfb\u7684\u3002<\/p>\n

    2.4 InnoDB vs MyISAM：\u4e24\u79cd\u5b58\u50a8\u54f2\u5b66<\/h4>\n

    \u5bf9\u4e8e\u540c\u4e00\u4e2a test \u8868，\u4e0d\u540c\u5b58\u50a8\u5f15\u64ce\u4ea7\u751f\u7684\u6587\u4ef6\u5b8c\u5168\u4e0d\u540c：<\/p>\n

    InnoDB \u5b58\u50a8\u5f15\u64ce（\u9ed8\u8ba4） MyISAM \u5b58\u50a8\u5f15\u64ce<\/p>\n

    mydb\/ mydb\/
    \n\u251c\u2500\u2500 test.frm \u2190 \u8868\u7ed3\u6784 \u251c\u2500\u2500 test.frm \u2190 \u8868\u7ed3\u6784
    \n\u2514\u2500\u2500 test.ibd \u2190 \u6570\u636e + \u7d22\u5f15 \u5728\u4e00\u8d77 \u251c\u2500\u2500 test.MYD \u2190 \u6570\u636e\u6587\u4ef6（MY Data）
    \n \u2514\u2500\u2500 test.MYI \u2190 \u7d22\u5f15\u6587\u4ef6（MY Index）<\/p>\n

    \u7406\u5ff5：\u7d22\u5f15\u5373\u6570\u636e \u7406\u5ff5：\u7d22\u5f15\u548c\u6570\u636e\u5206\u79bb<\/p>\n

    \u5173\u952e\u5dee\u5f02：InnoDB \u7684\u805a\u7c07\u7d22\u5f15\u53f6\u5b50\u8282\u70b9\u5b58\u50a8\u5b8c\u6574\u8bb0\u5f55，\u6240\u4ee5\u6570\u636e\u548c\u7d22\u5f15\u5728\u540c\u4e00\u4e2a .ibd \u6587\u4ef6\u4e2d\u3002MyISAM \u6ca1\u6709\u805a\u7c07\u7d22\u5f15\u7684\u6982\u5ff5，\u6240\u6709\u7d22\u5f15\u90fd\u662f"\u4e8c\u7ea7\u7d22\u5f15"，\u53f6\u5b50\u8282\u70b9\u5b58\u7684\u662f\u884c\u53f7（\u800c\u975e\u4e3b\u952e），\u4ee5\u6b64\u5b9e\u73b0\u56de\u8868\u3002<\/p>\n

    \n

    \u4e09\u3001InnoDB \u8868\u7a7a\u95f4：\u9875\u9762\u7684\u5927\u6c60\u5b50<\/h3>\n

    3.1 \u4e3a\u4ec0\u4e48\u8981\u6709\u8868\u7a7a\u95f4？<\/h4>\n

    \u524d\u4e00\u7bc7\u6587\u7ae0\u8bb2\u8fc7，InnoDB \u4ee5 16KB \u7684\u9875 \u4e3a\u57fa\u672c\u5355\u4f4d\u7ba1\u7406\u5b58\u50a8\u7a7a\u95f4，\u6bcf\u4e2a\u7d22\u5f15\u5bf9\u5e94\u4e00\u68f5 B+ \u6811，\u6811\u7684\u6bcf\u4e2a\u8282\u70b9\u5c31\u662f\u4e00\u4e2a\u6570\u636e\u9875\u3002\u4f46\u95ee\u9898\u662f：\u6210\u5343\u4e0a\u4e07\u4e2a\u9875\u5206\u6563\u5728\u78c1\u76d8\u4e0a，\u8c01\u6765\u7edf\u4e00\u7ba1\u7406\u5b83\u4eec？<\/p>\n

    \u4e8e\u662f"\u8868\u7a7a\u95f4"\u767b\u573a\u4e86\u3002\u4f60\u53ef\u4ee5\u628a\u8868\u7a7a\u95f4\u60f3\u8c61\u6210\u4e00\u4e2a\u5de8\u5927\u7684\u6c60\u5b50，\u6c60\u5b50\u91cc\u88c5\u6ee1\u4e86\u9875\u3002\u63d2\u5165\u8bb0\u5f55\u65f6，\u5c31\u4ece\u6c60\u5b50\u91cc\u635e\u51fa\u5bf9\u5e94\u7684\u9875\u6765\u5199\u5165\u3002\u8868\u7a7a\u95f4\u662f\u4e00\u4e2a\u62bd\u8c61\u6982\u5ff5，\u6700\u7ec8\u5bf9\u5e94\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u771f\u5b9e\u6587\u4ef6\u3002<\/p>\n

    \u8868\u7a7a\u95f4（\u903b\u8f91\u6982\u5ff5）
    \n \u2502
    \n \u2502 \u6620\u5c04\u5230
    \n \u25bc
    \n\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u7269\u7406\u6587\u4ef6
    \n（\u5982 ibdata1\u3001test.ibd）
    \n \u2502
    \n \u2502 \u5185\u90e8\u5207\u5206\u4e3a
    \n \u25bc
    \n\u82e5\u5e72\u4e2a 16KB \u7684\u9875<\/p>\n

    3.2 \u7cfb\u7edf\u8868\u7a7a\u95f4 vs \u72ec\u7acb\u8868\u7a7a\u95f4<\/h4>\n

    InnoDB \u63d0\u4f9b\u4e24\u79cd\u4e3b\u8981\u7684\u8868\u7a7a\u95f4\u7c7b\u578b：<\/p>\n\n\u7279\u6027\u7cfb\u7edf\u8868\u7a7a\u95f4\u72ec\u7acb\u8868\u7a7a\u95f4<\/tr>\n\n\n\n\n\n\n
    \u6587\u4ef6<\/td>\nibdata1（\u53ef\u914d\u7f6e\u591a\u4e2a）<\/td>\n\u8868\u540d.ibd<\/td>\n<\/tr>\n
    \u4f5c\u7528\u8303\u56f4<\/td>\n\u6574\u4e2a MySQL \u5b9e\u4f8b\u5171\u4eab\u4e00\u4e2a<\/td>\n\u6bcf\u4e2a\u8868\u72ec\u4eab\u4e00\u4e2a<\/td>\n<\/tr>\n
    \u6570\u636e\u5b58\u653e<\/td>\n\u6240\u6709\u8868\u7684\u6570\u636e\u90fd\u53ef\u4ee5\u653e\u8fd9\u91cc<\/td>\n\u6bcf\u4e2a\u8868\u7684\u6570\u636e\u5404\u81ea\u72ec\u7acb<\/td>\n<\/tr>\n
    MySQL \u7248\u672c<\/td>\n5.5.7 ~ 5.6.6 \u9ed8\u8ba4<\/td>\n5.6.6+ \u9ed8\u8ba4<\/td>\n<\/tr>\n
    \u914d\u7f6e\u53c2\u6570<\/td>\ninnodb_data_file_path<\/td>\ninnodb_file_per_table=1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u914d\u7f6e\u7cfb\u7edf\u8868\u7a7a\u95f4\u4e3a\u591a\u4e2a\u6587\u4ef6：<\/p>\n

    [server]
    \n# \u521b\u5efa data1 \u548c data2 \u4e24\u4e2a\u6587\u4ef6，\u5404 512M，data2 \u4e0d\u591f\u65f6\u81ea\u52a8\u6269\u5c55
    \ninnodb_data_file_path=data1:512M;data2:512M:autoextend<\/p>\n

    \u5207\u6362\u8868\u7a7a\u95f4\u7c7b\u578b：<\/p>\n

    — \u67e5\u770b\u5f53\u524d\u4f7f\u7528\u7684\u8868\u7a7a\u95f4\u6a21\u5f0f<\/span>
    \nSHOW<\/span> VARIABLES LIKE<\/span> 'innodb_file_per_table'<\/span>;<\/span><\/p>\n

    — \u5c06\u5df2\u6709\u8868\u4ece\u72ec\u7acb\u8868\u7a7a\u95f4\u8fc1\u79fb\u5230\u7cfb\u7edf\u8868\u7a7a\u95f4<\/span>
    \nALTER<\/span> TABLE<\/span> test TABLESPACE<\/span> innodb_system;<\/span><\/p>\n

    — \u5c06\u5df2\u6709\u8868\u4ece\u7cfb\u7edf\u8868\u7a7a\u95f4\u8fc1\u79fb\u56de\u72ec\u7acb\u8868\u7a7a\u95f4<\/span>
    \nALTER<\/span> TABLE<\/span> test TABLESPACE<\/span> innodb_file_per_table;<\/span><\/p>\n

    💡 \u6700\u4f73\u5b9e\u8df5：\u73b0\u4ee3 MySQL 8.0 \u9ed8\u8ba4\u4f7f\u7528\u72ec\u7acb\u8868\u7a7a\u95f4（innodb_file_per_table=ON），\u8fd9\u6709\u51e0\u4e2a\u597d\u5904\u2014\u2014\u5220\u9664\u8868\u65f6\u76f4\u63a5\u56de\u6536\u78c1\u76d8\u7a7a\u95f4（\u5220 .ibd \u6587\u4ef6\u5373\u53ef），\u4e0d\u540c\u8868\u7684 IO \u4e92\u4e0d\u5e72\u6270，\u5907\u4efd\u8fd8\u539f\u66f4\u7075\u6d3b\u3002<\/p>\n

    \n

    \u56db\u3001\u8868\u7a7a\u95f4\u7684\u5185\u90e8\u7ed3\u6784：\u533a\u3001\u6bb5\u4e0e\u788e\u7247<\/h3>\n

    \u8868\u7a7a\u95f4\u4e0d\u662f\u628a\u9875\u80e1\u4e71\u5806\u5728\u4e00\u8d77，\u800c\u662f\u6709\u4e00\u5957\u7cbe\u5bc6\u7684\u7ed3\u6784\u3002<\/p>\n

    4.1 \u533a（Extent）：\u8fde\u7eed\u5b58\u50a8\u7684\u79d8\u5bc6<\/h4>\n

    \u56de\u987e B+ \u6811\u7684\u8303\u56f4\u67e5\u8be2：\u627e\u5230\u8303\u56f4\u8d77\u70b9\u540e，\u6cbf\u7740\u53f6\u5b50\u8282\u70b9\u7684\u53cc\u5411\u94fe\u8868\u987a\u5e8f\u626b\u63cf\u5373\u53ef\u3002\u4f46\u5982\u679c\u94fe\u8868\u4e0a\u76f8\u90bb\u7684\u9875\u5728\u7269\u7406\u4e0a\u79bb\u5f97\u5f88\u8fdc，\u6bcf\u6b21\u8df3\u5230\u4e0b\u4e00\u9875\u90fd\u662f\u968f\u673a IO，\u78c1\u76d8\u7684\u78c1\u5934（\u6216 SSD \u7684\u5bfb\u5740）\u5c31\u8981\u75b2\u4e8e\u5954\u547d\u3002<\/p>\n

    \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898，InnoDB \u5f15\u5165\u4e86\u4e00\u4e2a\u66f4\u5927\u7684\u5206\u914d\u5355\u4f4d\u2014\u2014\u533a（Extent）\u3002<\/p>\n

    \u4e00\u4e2a\u533a = \u8fde\u7eed 64 \u4e2a\u9875 = 64 \u00d7 16KB = 1MB<\/p>\n

    \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
    \n\u2502 \u4e00\u4e2a\u533a (1MB) \u2502
    \n\u2502 \u250c\u2500\u2500\u2500\u2500\u2510\u250c\u2500\u2500\u2500\u2500\u2510\u250c\u2500\u2500\u2500\u2500\u2510 … \u250c\u2500\u2500\u2500\u2500\u2510 \u2502
    \n\u2502 \u2502\u98750 \u2502\u2502\u98751 \u2502\u2502\u98752 \u2502 \u2502\u987563\u2502 \u2502
    \n\u2502 \u2514\u2500\u2500\u2500\u2500\u2518\u2514\u2500\u2500\u2500\u2500\u2518\u2514\u2500\u2500\u2500\u2500\u2518 \u2514\u2500\u2500\u2500\u2500\u2518 \u2502
    \n\u2502 \u2190\u2500\u2500 64 \u4e2a\u9875\u5728\u7269\u7406\u4e0a\u8fde\u7eed\u5b58\u50a8 \u2500\u2500\u2192 \u2502
    \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n

    \u5f53\u8868\u4e2d\u6570\u636e\u591a\u4e86\u4ee5\u540e，\u5206\u914d\u7a7a\u95f4\u5c31\u4ee5\u533a\u4e3a\u5355\u4f4d\u800c\u975e\u4ee5\u9875\u4e3a\u5355\u4f4d，\u8fd9\u6837\u540c\u4e00\u4e2a B+ \u6811\u8282\u70b9\u9644\u8fd1\u7684\u9875\u5927\u6982\u7387\u7269\u7406\u76f8\u90bb，\u8303\u56f4\u626b\u63cf\u5c31\u6210\u4e86\u987a\u5e8f IO\u3002<\/p>\n

    🎯 \u6269\u5c55\u77e5\u8bc6：\u4e3a\u4ec0\u4e48\u521a\u597d\u662f 64 \u4e2a\u9875？1MB \u7684\u5927\u5c0f\u662f\u4e00\u4e2a\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u5e73\u8861\u2014\u2014\u65e2\u5927\u5230\u80fd\u663e\u8457\u51cf\u5c11\u968f\u673a IO，\u53c8\u5c0f\u5230\u4e0d\u4f1a\u56e0\u4e3a\u586b\u4e0d\u6ee1\u800c\u6d6a\u8d39\u592a\u591a\u7a7a\u95f4\u3002<\/p>\n

    4.2 \u6bb5（Segment）：\u53f6\u5b50\u4e0e\u975e\u53f6\u5b50\u7684\u5206\u6d41<\/h4>\n

    \u5982\u679c\u53ea\u6309\u533a\u5206\u914d，\u53f6\u5b50\u8282\u70b9\u548c\u975e\u53f6\u5b50\u8282\u70b9\u7684\u9875\u4f1a\u6df7\u5728\u540c\u4e00\u4e2a\u533a\u91cc，\u8303\u56f4\u626b\u63cf\u65f6\u4ecd\u4f1a\u626b\u5230\u5927\u91cf\u65e0\u5173\u7684\u975e\u53f6\u5b50\u9875\u3002\u4e8e\u662f InnoDB \u8fdb\u4e00\u6b65\u63d0\u51fa\u4e86\u6bb5（Segment）：<\/p>\n

    \u4e00\u4e2a\u7d22\u5f15 = 2 \u4e2a\u6bb5
    \n \u2502
    \n \u251c\u2500\u2500 \u53f6\u5b50\u8282\u70b9\u6bb5（Leaf Segment）
    \n \u2502 \u5b58\u653e B+ \u6811\u53f6\u5b50\u8282\u70b9\u7684\u6240\u6709\u9875
    \n \u2502
    \n \u2514\u2500\u2500 \u975e\u53f6\u5b50\u8282\u70b9\u6bb5（Non-Leaf Segment）
    \n \u5b58\u653e B+ \u6811\u5185\u8282\u70b9\u7684\u6240\u6709\u9875<\/p>\n

    \u6240\u4ee5\u5bf9\u4e8e\u4e00\u4e2a\u6709 N \u4e2a\u7d22\u5f15\u7684\u8868，\u5c31\u6709 2N \u4e2a\u6bb5\u3002\u6bd4\u5982：<\/p>\n

      \n
    • 1 \u4e2a\u805a\u7c07\u7d22\u5f15 \u2192 2 \u4e2a\u6bb5<\/li>\n
    • \u518d\u52a0 1 \u4e2a\u4e8c\u7ea7\u7d22\u5f15 \u2192 \u518d\u52a0 2 \u4e2a\u6bb5<\/li>\n
    • \u603b\u8ba1 4 \u4e2a\u6bb5<\/li>\n<\/ul>\n

      \u6bcf\u4e2a\u6bb5\u90fd\u4ee5\u533a\u4e3a\u5355\u4f4d\u7533\u8bf7\u7a7a\u95f4，\u53f6\u5b50\u6bb5\u548c\u975e\u53f6\u5b50\u6bb5\u7684\u9875\u7269\u7406\u4e0a\u76f8\u4e92\u9694\u79bb，\u8303\u56f4\u626b\u63cf\u65f6\u7545\u884c\u65e0\u963b\u3002<\/p>\n

      4.3 \u788e\u7247\u533a：\u5c0f\u8868\u7684"\u7cbe\u6253\u7ec6\u7b97"<\/h4>\n

      \u95ee\u9898\u6765\u4e86：\u4e00\u4e2a\u533a\u9ed8\u8ba4 1MB，\u90a3\u4e00\u4e2a\u53ea\u63d2\u4e86\u51e0\u5341\u6761\u8bb0\u5f55\u7684\u5c0f\u8868\u4e5f\u9700\u8981 2MB（\u4e24\u4e2a\u6bb5\u5404\u5360\u4e00\u533a）？\u8fd9\u592a\u6d6a\u8d39\u4e86\u3002<\/p>\n

      InnoDB \u7684\u89e3\u51b3\u65b9\u6848\u662f\u788e\u7247\u533a（Fragment Extent）：<\/p>\n

      \u5c0f\u8868\u521d\u671f（\u6bb5\u5360\u7528 < 32 \u4e2a\u5206\u6563\u9875）：<\/p>\n

      \u6bb5 A \u7684\u96f6\u6563\u9875\u9762 \u2500\u2500\u2510
      \n \u6bb5 B \u7684\u96f6\u6563\u9875\u9762 \u2500\u2500\u253c\u2500\u2500 \u90fd\u4ece\u4e00\u4e2a"\u788e\u7247\u533a"\u91cc\u6309\u9875\u79df\u7528
      \n \u6bb5 C \u7684\u96f6\u6563\u9875\u9762 \u2500\u2500\u2518<\/p>\n

      \u5927\u8868\u9636\u6bb5（\u6bb5\u5360\u7528 \u2265 32 \u4e2a\u5206\u6563\u9875）：<\/p>\n

      \u6bb5 A \u76f4\u63a5\u7533\u8bf7\u5b8c\u6574\u7684\u533a（1MB），\u4e0d\u518d"\u62fc\u79df"<\/p>\n

      \u6bcf\u4e2a\u533a\u6709\u56db\u79cd\u72b6\u6001：<\/p>\n\n\u72b6\u6001\u542b\u4e49\u5f52\u5c5e<\/tr>\n\n\n\n\n\n
      FREE<\/td>\n\u5b8c\u5168\u7a7a\u95f2，\u5565\u90fd\u6ca1\u7528<\/td>\n\u76f4\u5c5e\u4e8e\u8868\u7a7a\u95f4<\/td>\n<\/tr>\n
      FREE_FRAG<\/td>\n\u788e\u7247\u533a，\u8fd8\u6709\u7a7a\u95f2\u9875\u53ef\u7528<\/td>\n\u76f4\u5c5e\u4e8e\u8868\u7a7a\u95f4<\/td>\n<\/tr>\n
      FULL_FRAG<\/td>\n\u788e\u7247\u533a，\u5df2\u65e0\u7a7a\u95f2\u9875<\/td>\n\u76f4\u5c5e\u4e8e\u8868\u7a7a\u95f4<\/td>\n<\/tr>\n
      FSEG<\/td>\n\u5df2\u5206\u914d\u7ed9\u67d0\u4e2a\u6bb5<\/td>\n\u9644\u5c5e\u4e8e\u6bb5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u5982\u679c\u628a\u8868\u7a7a\u95f4\u6bd4\u4f5c\u4e00\u4e2a\u96c6\u56e2\u519b，\u6bb5\u5c31\u662f\u5e08，\u533a\u5c31\u662f\u56e2\u3002FREE\/FREE_FRAG\/FULL_FRAG \u72b6\u6001\u7684\u533a\u5c31\u50cf\u72ec\u7acb\u56e2，\u76f4\u63a5\u542c\u547d\u4e8e\u519b\u90e8；\u800c FSEG \u72b6\u6001\u7684\u533a\u5219\u662f\u5404\u5e08\u7684\u76f4\u5c5e\u56e2\u3002<\/p>\n

      \n

      \u4e94\u3001\u8868\u7a7a\u95f4\u7684\u7ba1\u7406\u673a\u5236<\/h3>\n

      5.1 XDES Entry：\u6bcf\u4e2a\u533a\u7684"\u8eab\u4efd\u8bc1"<\/h4>\n

      \u8868\u7a7a\u95f4\u91cc\u6709\u6210\u5343\u4e0a\u4e07\u4e2a\u533a，\u600e\u4e48\u8bb0\u4f4f\u6bcf\u4e2a\u533a\u7684\u72b6\u6001？InnoDB \u4e3a\u6bcf\u4e2a\u533a\u8bbe\u8ba1\u4e86\u4e00\u4e2a 40 \u5b57\u8282\u7684 XDES Entry（Extent Descriptor Entry）：<\/p>\n

      XDES Entry \u7ed3\u6784（40 \u5b57\u8282）：
      \n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
      \n\u2502 Segment ID \u2502 List Node \u2502 State \u2502 Page State Bitmap \u2502
      \n\u2502 (8 \u5b57\u8282) \u2502 (12 \u5b57\u8282) \u2502 (4 \u5b57\u8282) \u2502 (16 \u5b57\u8282) \u2502
      \n\u2502 \u2502 \u2502 \u2502 \u2502
      \n\u2502 \u8be5\u533a\u5c5e\u4e8e\u54ea\u4e2a\u6bb5 \u2502 \u524d\u540e\u6307\u9488，\u7528\u4e8e \u2502 FREE \u2502 128 \u4e2a\u6bd4\u7279\u4f4d = \u2502
      \n\u2502 （\u5982\u679c\u5206\u914d\u7ed9\u6bb5\u7684\u8bdd）\u2502 \u4e32\u8054\u6210\u94fe\u8868 \u2502 FREE_FRAG\u2502 64 \u7ec4 \u00d7 2 \u4f4d， \u2502
      \n\u2502 \u2502 \u2502 FULL_FRAG\u2502 \u6807\u8bb0\u533a\u5185\u6bcf\u4e2a\u9875 \u2502
      \n\u2502 \u2502 \u2502 FSEG \u2502 \u662f\u5426\u7a7a\u95f2 \u2502
      \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n

      \u6bcf\u4e2a\u7ec4\u6700\u591a 256 \u4e2a\u533a，\u6bcf\u4e2a\u533a\u4e00\u4e2a XDES Entry，\u6240\u4ee5\u9700\u8981 40 \u00d7 256 = 10240 \u5b57\u8282\u3002\u8fd9\u4e9b XDES Entry \u96c6\u4e2d\u5b58\u50a8\u5728\u6bcf\u4e2a\u7ec4\u7684\u7b2c\u4e00\u4e2a\u9875\u9762\u4e2d\u3002<\/p>\n

      5.2 \u94fe\u8868\u738b\u56fd：15 \u6761\u94fe\u8868\u7684\u7cbe\u5bc6\u534f\u4f5c<\/h4>\n

      InnoDB \u7528\u94fe\u8868\u6765\u7ba1\u7406\u6240\u6709\u533a，\u800c\u4e0d\u662f\u6bcf\u6b21\u90fd\u904d\u5386\u626b\u63cf\u3002\u8fd9\u4e9b\u94fe\u8868\u7531 XDES Entry \u901a\u8fc7 List Node \u4e32\u8054\u800c\u6210：<\/p>\n

      \u76f4\u5c5e\u4e8e\u8868\u7a7a\u95f4\u7684 3 \u6761\u94fe\u8868（\u6240\u6709\u533a\u90fd\u53c2\u4e0e）：<\/p>\n

      FREE \u94fe\u8868 \u2192 \u4e32\u8054\u6240\u6709 FREE \u72b6\u6001\u7684\u533a
      \n FREE_FRAG \u94fe\u8868 \u2192 \u4e32\u8054\u6240\u6709 FREE_FRAG \u72b6\u6001\u7684\u533a
      \n FULL_FRAG \u94fe\u8868 \u2192 \u4e32\u8054\u6240\u6709 FULL_FRAG \u72b6\u6001\u7684\u533a<\/p>\n

      \u6bcf\u4e2a\u6bb5\u5185\u90e8\u8fd8\u6709 3 \u6761\u94fe\u8868（\u53ea\u4e32\u8054\u8be5\u6bb5\u62e5\u6709\u7684\u533a）：<\/p>\n

      FREE \u94fe\u8868 \u2192 \u8be5\u6bb5\u4e2d\u5168\u7a7a\u95f2\u7684\u533a
      \n NOT_FULL \u94fe\u8868 \u2192 \u8be5\u6bb5\u4e2d\u8fd8\u6709\u7a7a\u9875\u7684\u533a
      \n FULL \u94fe\u8868 \u2192 \u8be5\u6bb5\u4e2d\u5df2\u6ee1\u7684\u533a<\/p>\n

      \u4ee5\u4e00\u4e2a\u53ea\u6709\u805a\u7c07\u7d22\u5f15\u7684\u8868\u4e3a\u4f8b：<\/p>\n

      \u8868 t（\u4ec5\u6709\u805a\u7c07\u7d22\u5f15）
      \n \u2502
      \n \u251c\u2500\u2500 \u53f6\u5b50\u8282\u70b9\u6bb5 \u2192 FREE \/ NOT_FULL \/ FULL \u94fe\u8868 \u00d7 3
      \n \u2514\u2500\u2500 \u975e\u53f6\u5b50\u8282\u70b9\u6bb5 \u2192 FREE \/ NOT_FULL \/ FULL \u94fe\u8868 \u00d7 3<\/p>\n

      \u52a0\u4e0a\u76f4\u5c5e\u4e8e\u8868\u7a7a\u95f4\u7684 3 \u6761：FREE \/ FREE_FRAG \/ FULL_FRAG
      \n \u52a0\u4e0a INODE \u9875\u7684\u7ba1\u7406\u94fe\u8868：SEG_INODES_FULL \/ SEG_INODES_FREE<\/p>\n

      \u603b\u8ba1：3 + 3\u00d72 + 3 + 2 = 14+ \u6761\u94fe\u8868<\/p>\n

      \u6bcf\u6709\u94fe\u8868\u5c31\u6709\u4e00\u4e2a List Base Node \u7ed3\u6784（16 \u5b57\u8282），\u8bb0\u5f55\u4e86\u94fe\u8868\u7684\u5934\u8282\u70b9\u4f4d\u7f6e\u3001\u5c3e\u8282\u70b9\u4f4d\u7f6e\u548c\u8282\u70b9\u603b\u6570：<\/p>\n

      List Base Node:
      \n \u251c\u2500\u2500 List Length (4 \u5b57\u8282)
      \n \u251c\u2500\u2500 First Node Page Number (4 \u5b57\u8282) + Offset (2 \u5b57\u8282)
      \n \u2514\u2500\u2500 Last Node Page Number (4 \u5b57\u8282) + Offset (2 \u5b57\u8282)<\/p>\n

      \u8fd9\u4e9b\u57fa\u8282\u70b9\u5b58\u653e\u5728\u8868\u7a7a\u95f4\u5934\u90e8\u9875\u9762\u7684\u56fa\u5b9a\u4f4d\u7f6e，\u8bbf\u95ee\u4efb\u4f55\u4e00\u4e2a\u94fe\u8868\u90fd\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n

      5.3 INODE Entry：\u6bcf\u4e2a\u6bb5\u7684"\u6863\u6848"<\/h4>\n

      \u533a\u6709 XDES Entry \u8fd9\u4e2a\u8eab\u4efd\u8bc1，\u6bb5\u4e5f\u6709\u81ea\u5df1\u7684"\u6237\u53e3\u672c"\u2014\u2014INODE Entry（192 \u5b57\u8282）：<\/p>\n

      INODE Entry \u7ed3\u6784（192 \u5b57\u8282）：
      \n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
      \n\u2502 Segment ID \u2502 NOT_FULL_N_USED\u2502 FREE \u94fe\u8868 \u2502 NOT_FULL \u94fe\u8868 \u2502 FULL \u94fe\u8868 \u2502
      \n\u2502 (8 \u5b57\u8282) \u2502 (4 \u5b57\u8282) \u2502 List Base Node\u2502 List Base Node\u2502 List Base Node \u2502
      \n\u2502 \u2502 NOT_FULL \u94fe\u8868 \u2502 (16 \u5b57\u8282) \u2502 (16 \u5b57\u8282) \u2502 (16 \u5b57\u8282) \u2502
      \n\u2502 \u2502 \u5df2\u4f7f\u7528\u9875\u6570 \u2502 \u2502 \u2502 \u2502
      \n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
      \n\u2502 Magic Number (4 \u5b57\u8282) \u2192 \u503c\u4e3a 97937874 \u8868\u793a\u5df2\u7ecf\u521d\u59cb\u5316 \u2502
      \n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
      \n\u2502 Fragment Array Entry \u00d7 32 (\u6bcf\u4e2a 4 \u5b57\u8282) \u2192 \u8bb0\u5f55\u8be5\u6bb5\u96f6\u6563\u9875\u9762\u7684\u9875\u53f7 \u2502
      \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n

      \u4e00\u4e2a INODE \u7c7b\u578b\u7684\u9875\u53ef\u4ee5\u5b58\u653e 85 \u4e2a INODE Entry\u3002\u5982\u679c\u6bb5\u592a\u591a\u3001\u4e00\u4e2a\u9875\u653e\u4e0d\u4e0b，\u5c31\u901a\u8fc7 SEG_INODES_FULL \/ SEG_INODES_FREE \u94fe\u8868\u4e32\u8054\u66f4\u591a\u7684 INODE \u9875\u9762\u3002<\/p>\n

      5.4 Segment Header：\u7d22\u5f15\u5982\u4f55\u627e\u5230\u81ea\u5df1\u7684\u6bb5<\/h4>\n

      \u6700\u540e\u4e00\u4e2a\u5173\u952e\u95ee\u9898：\u6bcf\u4e2a\u7d22\u5f15\u6709\u4e24\u4e2a\u6bb5（\u53f6\u5b50\u6bb5\u548c\u975e\u53f6\u5b50\u6bb5），\u7d22\u5f15\u600e\u4e48\u627e\u5230\u81ea\u5df1\u7684\u6bb5\u5bf9\u5e94\u7684 INODE Entry？<\/p>\n

      \u7b54\u6848\u85cf\u5728\u7d22\u5f15\u6839\u9875\u9762\u7684 Page Header \u90e8\u5206：<\/p>\n

      INDEX \u7c7b\u578b\u9875\u9762\u7684 Page Header（\u90e8\u5206\u5b57\u6bb5）：<\/p>\n

      \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
      \n\u2502 PAGE_BTR_SEG_LEAF \u2502 10 \u5b57\u8282 \u2502 B+ \u6811\u53f6\u5b50\u8282\u70b9\u6bb5\u5bf9\u5e94\u7684 INODE Entry \u5730\u5740 \u2502
      \n\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
      \n\u2502 PAGE_BTR_SEG_TOP \u2502 10 \u5b57\u8282 \u2502 B+ \u6811\u975e\u53f6\u5b50\u8282\u70b9\u6bb5\u5bf9\u5e94\u7684 INODE Entry \u5730\u5740 \u2502
      \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n

      \u6bcf\u4e2a Segment Header \u8bb0\u5f55\u4e00\u4e2a\u7cbe\u786e\u5730\u5740：
      \n \u251c\u2500\u2500 Space ID (4 \u5b57\u8282)：INODE Entry \u6240\u5728\u7684\u8868\u7a7a\u95f4 ID
      \n \u251c\u2500\u2500 Page Number (4 \u5b57\u8282)：INODE Entry \u6240\u5728\u7684\u9875\u53f7
      \n \u2514\u2500\u2500 Byte Offset (2 \u5b57\u8282)：INODE Entry \u5728\u9875\u5185\u7684\u504f\u79fb\u91cf<\/p>\n

      \u8fd9\u6837，\u7d22\u5f15\u5c31\u80fd\u901a\u8fc7\u6839\u9875\u9762\u4e2d\u7684 Segment Header \u7cbe\u786e\u5b9a\u4f4d\u5230\u53f6\u5b50\u6bb5\u548c\u975e\u53f6\u5b50\u6bb5\u7684\u6240\u6709\u4fe1\u606f\u3002<\/p>\n

      \n

      \u516d\u3001\u7cfb\u7edf\u8868\u7a7a\u95f4\u4e0e\u6570\u636e\u5b57\u5178<\/h3>\n

      6.1 \u7cfb\u7edf\u8868\u7a7a\u95f4\u7684\u7279\u6b8a\u9875\u9762<\/h4>\n

      \u7cfb\u7edf\u8868\u7a7a\u95f4\u7684\u6574\u4f53\u7ed3\u6784\u548c\u72ec\u7acb\u8868\u7a7a\u95f4\u7c7b\u4f3c，\u4f46\u591a\u4e86\u51e0\u4e2a\u8bb0\u5f55\u6574\u4e2a\u7cfb\u7edf\u4fe1\u606f\u7684\u9875\u9762：<\/p>\n

      \u7cfb\u7edf\u8868\u7a7a\u95f4\u5e03\u5c40（Space ID = 0）：<\/p>\n

      \u9875\u53f7 \u7c7b\u578b \u7528\u9014
      \n \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500
      \n 0 FSP_HDR \u8868\u7a7a\u95f4\u5934\u90e8\u4fe1\u606f + \u7b2c1\u7ec4 XDES Entry
      \n 1 IBUF_BITMAP Insert Buffer \u4f4d\u56fe
      \n 2 INODE INODE Entry \u5b58\u50a8\u9875
      \n \u2500\u2500 \u4ee5\u4e0b\u4e3a\u7cfb\u7edf\u8868\u7a7a\u95f4\u7279\u6709 \u2500\u2500
      \n 3 SYS Insert Buffer \u5934\u90e8
      \n 4 INDEX Insert Buffer \u6839\u9875\u9762
      \n 5 TRX_SYS \u4e8b\u52a1\u7cfb\u7edf\u4fe1\u606f
      \n 6 SYS \u7b2c\u4e00\u4e2a\u56de\u6eda\u6bb5
      \n 7 SYS \u6570\u636e\u5b57\u5178\u5934\u90e8 \u2b50
      \n \u2500\u2500 Doublewrite Buffer \u2500\u2500
      \n 64~127 \u53cc\u5199\u7f13\u51b2\u533a（\u7b2c1\u533a）
      \n 128~191 \u53cc\u5199\u7f13\u51b2\u533a（\u7b2c2\u533a）<\/p>\n

      6.2 InnoDB \u6570\u636e\u5b57\u5178<\/h4>\n

      \u6267\u884c INSERT INTO t VALUES (1, 'hello') \u65f6，MySQL \u9700\u8981\u9a8c\u8bc1：<\/p>\n

        \n
      • \u8868 t \u662f\u5426\u5b58\u5728？<\/li>\n
      • \u5217\u6570\u91cf\u662f\u5426\u5339\u914d？<\/li>\n
      • \u8be5\u8868\u7684\u7d22\u5f15\u6839\u9875\u9762\u5728\u54ea\u4e2a\u8868\u7a7a\u95f4\u7684\u54ea\u4e2a\u9875？<\/li>\n<\/ul>\n

        \u8fd9\u4e9b"\u5143\u6570\u636e"\u90fd\u5b58\u5728 InnoDB \u7684\u5185\u90e8\u7cfb\u7edf\u8868\u4e2d：<\/p>\n

        InnoDB \u7684 4 \u4e2a\u57fa\u672c\u7cfb\u7edf\u8868（\u5b83\u4eec\u81ea\u5df1\u4e5f\u662f B+ \u6811）：<\/p>\n

        SYS_TABLES \u2192 \u6574\u4e2a InnoDB \u4e2d\u6240\u6709\u8868\u7684\u4fe1\u606f
        \n SYS_COLUMNS \u2192 \u6240\u6709\u5217\u7684\u4fe1\u606f（\u7c7b\u578b\u3001\u957f\u5ea6\u3001\u662f\u5426\u53ef\u7a7a…）
        \n SYS_INDEXES \u2192 \u6240\u6709\u7d22\u5f15\u7684\u4fe1\u606f（\u6839\u9875\u9762\u4f4d\u7f6e\u3001\u7d22\u5f15\u7c7b\u578b…）
        \n SYS_FIELDS \u2192 \u6bcf\u4e2a\u7d22\u5f15\u5305\u542b\u54ea\u4e9b\u5217<\/p>\n

        \u8fd9 4 \u5f20\u8868\u7684\u5143\u6570\u636e（\u5b83\u4eec\u6709\u54ea\u4e9b\u5217\u3001\u7d22\u5f15\u5728\u54ea\u91cc）\u786c\u7f16\u7801\u5728\u4ee3\u7801\u4e2d，\u800c\u5b83\u4eec\u7684\u7d22\u5f15\u6839\u9875\u9762\u4f4d\u7f6e\u8bb0\u5f55\u5728\u9875\u53f7\u4e3a 7 \u7684 Data Dictionary Header \u9875\u9762\u91cc：<\/p>\n

        Data Dictionary Header \u7684\u5173\u952e\u5b57\u6bb5：<\/p>\n

        Max Row ID \u2192 \u81ea\u589e row_id，\u5168\u5c40\u5171\u4eab
        \n Max Table ID \u2192 \u4e0b\u6b21\u5efa\u8868\u65f6\u5206\u914d\u7ed9\u65b0\u8868\u7684 ID
        \n Max Index ID \u2192 \u4e0b\u6b21\u5efa\u7d22\u5f15\u65f6\u5206\u914d\u7ed9\u65b0\u7d22\u5f15\u7684 ID
        \n Max Space ID \u2192 \u4e0b\u6b21\u5efa\u8868\u7a7a\u95f4\u65f6\u5206\u914d\u7ed9\u65b0\u8868\u7a7a\u95f4\u7684 ID<\/p>\n

        Root of SYS_TABLES clust index \u2192 SYS_TABLES \u805a\u7c07\u7d22\u5f15\u6839\u9875\u9762
        \n Root of SYS_TABLE_IDS sec index \u2192 SYS_TABLES \u7684 ID \u5217\u4e8c\u7ea7\u7d22\u5f15\u6839\u9875\u9762
        \n Root of SYS_COLUMNS clust index \u2192 SYS_COLUMNS \u805a\u7c07\u7d22\u5f15\u6839\u9875\u9762
        \n Root of SYS_INDEXES clust index \u2192 SYS_INDEXES \u805a\u7c07\u7d22\u5f15\u6839\u9875\u9762
        \n Root of SYS_FIELDS clust index \u2192 SYS_FIELDS \u805a\u7c07\u7d22\u5f15\u6839\u9875\u9762<\/p>\n

        6.3 information_schema：\u7ed9\u7528\u6237\u5f00\u7684"\u540e\u95e8"<\/h4>\n

        \u666e\u901a\u7528\u6237\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee SYS_* \u5185\u90e8\u7cfb\u7edf\u8868，\u4f46\u53ef\u4ee5\u901a\u8fc7 information_schema \u6570\u636e\u5e93\u4e2d\u7684 INNODB_SYS_* \u8868\u67e5\u770b：<\/p>\n

        USE<\/span> information_schema;<\/span>
        \nSHOW<\/span> TABLES<\/span> LIKE<\/span> 'INNODB_SYS%'<\/span>;<\/span><\/p>\n

        — \u7ed3\u679c：<\/span>
        \n— INNODB_SYS_TABLES \u2190 \u67e5\u770b\u6240\u6709 InnoDB \u8868\u7684\u4fe1\u606f<\/span>
        \n— INNODB_SYS_COLUMNS \u2190 \u67e5\u770b\u6240\u6709\u5217\u7684\u5b9a\u4e49<\/span>
        \n— INNODB_SYS_INDEXES \u2190 \u67e5\u770b\u6240\u6709\u7d22\u5f15\u7684\u4fe1\u606f<\/span>
        \n— INNODB_SYS_FIELDS \u2190 \u67e5\u770b\u7d22\u5f15\u5305\u542b\u7684\u5217<\/span>
        \n— INNODB_SYS_TABLESPACES \u2190 \u67e5\u770b\u6240\u6709\u8868\u7a7a\u95f4<\/span>
        \n— INNODB_SYS_DATAFILES \u2190 \u67e5\u770b\u8868\u7a7a\u95f4\u5bf9\u5e94\u7684\u7269\u7406\u6587\u4ef6<\/span>
        \n— …<\/span><\/p>\n

        — \u5b9e\u6218：\u67e5\u770b\u67d0\u4e2a\u8868\u6240\u5728\u8868\u7a7a\u95f4\u7684 ID<\/span>
        \nSELECT<\/span> name,<\/span> space FROM<\/span> INNODB_SYS_TABLES WHERE<\/span> name LIKE<\/span> '%test%'<\/span>;<\/span><\/p>\n

        \u8fd9\u4e9b INNODB_SYS_* \u8868\u4e0d\u662f\u771f\u6b63\u7684\u5185\u90e8\u7cfb\u7edf\u8868，\u800c\u662f MySQL \u542f\u52a8\u65f6\u4ece SYS_* \u8868\u8bfb\u53d6\u6570\u636e\u540e\u586b\u5145\u7684\u53ea\u8bfb\u5feb\u7167\u3002<\/p>\n

        \n

        \u4e03\u3001\u603b\u7ed3：\u4e00\u5f20\u56fe\u770b\u6e05\u5168\u8c8c<\/h3>\n

        MySQL \u6570\u636e\u5b58\u50a8\u5c42\u6b21\u7ed3\u6784<\/p>\n

        \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
        \n\u2502 \u6570\u636e\u76ee\u5f55 (datadir) \u2502
        \n\u2502 \/usr\/local\/var\/mysql\/ \u2502
        \n\u2502 \u2502
        \n\u2502 \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u2502
        \n\u2502 \u2502 mydb\/ \u2502 \u2502 testdb\/ \u2502 \u2502 mysql\/ \u2502 … \u6570\u636e\u5e93 \u2502
        \n\u2502 \u2502 \u251c db.opt \u2502 \u2502 \u251c db.opt \u2502 \u2502 (\u7cfb\u7edf\u5e93) \u2502 \u2502
        \n\u2502 \u2502 \u251c t1.frm \u2502 \u2502 \u251c t2.frm \u2502 \u2502 \u2502 \u2502
        \n\u2502 \u2502 \u2514 t1.ibd \u2500\u253c\u2500\u2500\u253c\u2500\u2500\u253c\u2500\u2500\u2192 \u8868\u7a7a\u95f4 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u2502
        \n\u2502 \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u2502 \u2514 t2.ibd \u2502 \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u2502
        \n\u2502 \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518 \u2502
        \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
        \n \u2502
        \n \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
        \n \u25bc \u25bc
        \n \u7cfb\u7edf\u8868\u7a7a\u95f4 (ibdata1) \u72ec\u7acb\u8868\u7a7a\u95f4 (t1.ibd)
        \n \u6bcf\u4e2a\u5b9e\u4f8b\u53ea\u6709\u4e00\u4efd \u6bcf\u4e2a\u8868\u4e00\u4efd
        \n \u2502 \u2502
        \n \u2502 \u250c\u2500\u2500\u2500 \u533a (Extent) \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510 \u2502
        \n \u2514\u2500\u2500\u2502 \u8fde\u7eed 64 \u4e2a\u9875 = 1MB \u2502\u2500\u2500\u2500\u2518
        \n \u2502 XDES Entry \u7ba1\u7406\u6bcf\u4e2a\u533a \u2502
        \n \u2502 FREE \/ FREE_FRAG \/ FULL_FRAG \u2502
        \n \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
        \n \u2502
        \n \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
        \n \u25bc \u25bc
        \n \u53f6\u5b50\u8282\u70b9\u6bb5 (Leaf Segment) \u975e\u53f6\u5b50\u8282\u70b9\u6bb5 (Non-Leaf Segment)
        \n \u5b58\u653e\u5b8c\u6574\u7528\u6237\u8bb0\u5f55 \u5b58\u653e\u76ee\u5f55\u9879\u8bb0\u5f55
        \n INODE Entry \u7ba1\u7406 INODE Entry \u7ba1\u7406
        \n FREE \/ NOT_FULL \/ FULL \u94fe\u8868 FREE \/ NOT_FULL \/ FULL \u94fe\u8868
        \n \u2502 \u2502
        \n \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
        \n \u25bc
        \n \u6570\u636e\u9875 (16KB)
        \n B+ \u6811\u7684\u8282\u70b9
        \n \u771f\u6b63\u7684\u8bb0\u5f55\u5b58\u50a8\u5355\u5143<\/p>\n

        \u6838\u5fc3\u8981\u70b9\u56de\u987e：<\/p>\n\n\u6982\u5ff5\u4e00\u53e5\u8bdd\u89e3\u91ca\u7c7b\u6bd4<\/tr>\n\n\n\n\n\n\n\n\n
        \u6570\u636e\u76ee\u5f55<\/td>\nMySQL \u5b58\u653e\u6240\u6709\u6570\u636e\u7684\u6839\u8def\u5f84<\/td>\n\u4e00\u680b\u5927\u697c<\/td>\n<\/tr>\n
        \u6570\u636e\u5e93<\/td>\n\u6570\u636e\u76ee\u5f55\u4e0b\u7684\u4e00\u4e2a\u5b50\u6587\u4ef6\u5939<\/td>\n\u5927\u697c\u91cc\u7684\u4e00\u5c42<\/td>\n<\/tr>\n
        \u8868\u7a7a\u95f4<\/td>\n\u7ba1\u7406\u9875\u7684\u903b\u8f91\u5bb9\u5668，\u5bf9\u5e94 .ibd \u6216 ibdata1<\/td>\n\u4e00\u5c42\u91cc\u7684\u4e00\u4e2a\u623f\u95f4<\/td>\n<\/tr>\n
        \u533a (Extent)<\/td>\n64 \u4e2a\u8fde\u7eed\u9875，\u5206\u914d\u7a7a\u95f4\u7684\u57fa\u672c\u5355\u4f4d<\/td>\n\u623f\u95f4\u91cc\u7684\u4e00\u4e2a\u4e66\u67b6<\/td>\n<\/tr>\n
        \u6bb5 (Segment)<\/td>\n\u7d22\u5f15\u7684\u53f6\u5b50\/\u975e\u53f6\u5b50\u8282\u70b9\u5404\u81ea\u72ec\u7acb\u7684\u533a\u96c6\u5408<\/td>\n\u4e66\u67b6\u6309"\u5c0f\u8bf4\/\u5de5\u5177\u4e66"\u5206\u533a<\/td>\n<\/tr>\n
        \u9875 (Page)<\/td>\n16KB \u7684\u8bfb\u5199\u57fa\u672c\u5355\u4f4d<\/td>\n\u4e66\u67b6\u4e0a\u7684\u4e00\u672c\u4e66<\/td>\n<\/tr>\n
        \u6570\u636e\u5b57\u5178<\/td>\nInnoDB \u5185\u90e8\u7cfb\u7edf\u8868，\u8bb0\u5f55\u8868\u548c\u7d22\u5f15\u7684\u5143\u6570\u636e<\/td>\n\u623f\u95f4\u95e8\u53e3\u7684\u76ee\u5f55\u7d22\u5f15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
        \n

        📚 \u5ef6\u4f38\u9605\u8bfb：<\/p>\n

          \n
        • MySQL \u5b98\u65b9\u6587\u6863： The InnoDB Storage Engine<\/li>\n
        • InnoDB \u8868\u7a7a\u95f4\u7ba1\u7406\u6e90\u7801\u5206\u6790<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

          MySQL \u6570\u636e\u5230\u5e95\u5b58\u5728\u54ea\u91cc？\u4ece\u6570\u636e\u76ee\u5f55\u5230 InnoDB \u8868\u7a7a\u95f4，\u4e00\u5c42\u5c42\u63ed\u5f00\u795e\u79d8\u9762\u7eb1 \u6458\u8981：\u6bcf\u6b21\u6267\u884c INSERT \u90fd\u611f\u89c9\u6570\u636e\\”\u6d88\u5931\\”\u8fdb\u4e86\u6570\u636e\u5e93，\u53ef\u5b83\u5b9e\u9645\u5b58\u5728\u78c1\u76d8\u7684\u54ea\u4e2a\u89d2\u843d？MySQL \u7684\u6570\u636e\u76ee\u5f55\u3001.ibd \u6587\u4ef6\u3001\u8868\u7a7a\u95f4\u3001\u533a\u3001\u6bb5\u2026\u8fd9\u4e9b\u6982\u5ff5\u4e4b\u95f4\u5230\u5e95\u662f\u4ec0\u4e48\u5173\u7cfb？\u672c\u6587\u5c06\u7528\u901a\u4fd7\u7684\u6bd4\u55bb\u548c\u56fe\u89e3，\u5e26\u4f60\u4ece\u6587\u4ef6\u7cfb\u7edf\u4e00\u8def\u8d70\u8fdb InnoDB \u8868\u7a7a\u95f4\u7684\u5185\u90e8\u4e16\u754c\u3002 \u4e00\u3001\u5199\u4e00\u6761 INSERT，<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[114,100],"topic":[],"class_list":["post-90805","post","type-post","status-publish","format-standard","hentry","category-server","tag-mysql","tag-100"],"yoast_head":"\nMySQL \u6570\u636e\u76ee\u5f55\u4e0e InnoDB \u8868\u7a7a\u95f4\u5e95\u5c42\u5b58\u50a8\u5168\u666f\u63ed\u79d8 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/90805.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MySQL \u6570\u636e\u76ee\u5f55\u4e0e InnoDB \u8868\u7a7a\u95f4\u5e95\u5c42\u5b58\u50a8\u5168\u666f\u63ed\u79d8 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"MySQL \u6570\u636e\u5230\u5e95\u5b58\u5728\u54ea\u91cc？\u4ece\u6570\u636e\u76ee\u5f55\u5230 InnoDB \u8868\u7a7a\u95f4，\u4e00\u5c42\u5c42\u63ed\u5f00\u795e\u79d8\u9762\u7eb1 \u6458\u8981：\u6bcf\u6b21\u6267\u884c INSERT \u90fd\u611f\u89c9\u6570\u636e"\u6d88\u5931"\u8fdb\u4e86\u6570\u636e\u5e93，\u53ef\u5b83\u5b9e\u9645\u5b58\u5728\u78c1\u76d8\u7684\u54ea\u4e2a\u89d2\u843d？MySQL \u7684\u6570\u636e\u76ee\u5f55\u3001.ibd \u6587\u4ef6\u3001\u8868\u7a7a\u95f4\u3001\u533a\u3001\u6bb5\u2026\u8fd9\u4e9b\u6982\u5ff5\u4e4b\u95f4\u5230\u5e95\u662f\u4ec0\u4e48\u5173\u7cfb？\u672c\u6587\u5c06\u7528\u901a\u4fd7\u7684\u6bd4\u55bb\u548c\u56fe\u89e3，\u5e26\u4f60\u4ece\u6587\u4ef6\u7cfb\u7edf\u4e00\u8def\u8d70\u8fdb InnoDB \u8868\u7a7a\u95f4\u7684\u5185\u90e8\u4e16\u754c\u3002 \u4e00\u3001\u5199\u4e00\u6761 INSERT，\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/90805.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-05T18:32:33+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/90805.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/90805.html\",\"name\":\"MySQL \u6570\u636e\u76ee\u5f55\u4e0e InnoDB \u8868\u7a7a\u95f4\u5e95\u5c42\u5b58\u50a8\u5168\u666f\u63ed\u79d8 - 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