{"id":55409,"date":"2025-08-13T22:14:43","date_gmt":"2025-08-13T14:14:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/55409.html"},"modified":"2025-08-13T22:14:43","modified_gmt":"2025-08-13T14:14:43","slug":"mysql%e4%b8%89%e5%a4%a7%e5%ad%98%e5%82%a8%e5%bc%95%e6%93%8e%e5%af%b9%e6%af%94%ef%bc%9ainnodb-vs-myisam-vs-memory","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/55409.html","title":{"rendered":"MySQL\u4e09\u5927\u5b58\u50a8\u5f15\u64ce\u5bf9\u6bd4\uff1aInnoDB vs MyISAM vs MEMORY"},"content":{"rendered":"

MySQL \u7684\u5b58\u50a8\u5f15\u64ce\u51b3\u5b9a\u4e86\u6570\u636e\u5982\u4f55\u5b58\u50a8\u3001\u7d22\u5f15\u5982\u4f55\u7ec4\u7ec7\u3001\u4e8b\u52a1\u662f\u5426\u652f\u6301\u4ee5\u53ca\u5e76\u53d1\u63a7\u5236\u673a\u5236\u7b49\u6838\u5fc3\u529f\u80fd\u3002InnoDB\u3001MyISAM \u548c MEMORY \u662f\u4e09\u79cd\u6700\u5e38\u89c1\u7684\u5f15\u64ce，\u5b83\u4eec\u5728\u8bbe\u8ba1\u76ee\u6807\u548c\u9002\u7528\u573a\u666f\u4e0a\u5b58\u5728\u663e\u8457\u5dee\u5f02：<\/p>\n

\u4ee5\u4e0b\u662f\u5b83\u4eec\u6838\u5fc3\u533a\u522b\u7684\u8be6\u7ec6\u5bf9\u6bd4：<\/p>\n\n\u7279\u6027InnoDBMyISAMMEMORY<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u4e8b\u52a1\u652f\u6301<\/td>\n\u652f\u6301 (ACID \u7279\u6027)<\/td>\n\u4e0d\u652f\u6301<\/td>\n\u4e0d\u652f\u6301<\/td>\n<\/tr>\n
\u9501\u7c92\u5ea6<\/td>\n\u884c\u7ea7\u9501 (\u9ed8\u8ba4，\u517c\u987e\u5e76\u53d1\u4e0e\u6027\u80fd)<\/td>\n\u8868\u7ea7\u9501<\/td>\n\u8868\u7ea7\u9501<\/td>\n<\/tr>\n
\u5916\u952e\u7ea6\u675f<\/td>\n\u652f\u6301<\/td>\n\u4e0d\u652f\u6301<\/td>\n\u4e0d\u652f\u6301<\/td>\n<\/tr>\n
\u5d29\u6e83\u6062\u590d<\/td>\n\u4f18\u79c0 (\u901a\u8fc7 redo log \u5b9e\u73b0)<\/td>\n\u8f83\u5dee (\u9700\u624b\u52a8 REPAIR TABLE \u6216\u68c0\u67e5)<\/td>\n\u65e0 (\u6570\u636e\u4e22\u5931)<\/td>\n<\/tr>\n
MVCC<\/td>\n\u652f\u6301 (\u5b9e\u73b0\u9ad8\u5e76\u53d1\u8bfb)<\/td>\n\u4e0d\u652f\u6301<\/td>\n\u4e0d\u652f\u6301<\/td>\n<\/tr>\n
\u4e3b\u952e\u7d22\u5f15\u7c7b\u578b<\/td>\n\u805a\u7c07\u7d22\u5f15 (\u6570\u636e\u5b58\u50a8\u5728\u4e3b\u952e\u7d22\u5f15\u53f6\u5b50\u8282\u70b9)<\/td>\n\u975e\u805a\u7c07\u7d22\u5f15 (\u6570\u636e\u4e0e\u7d22\u5f15\u5206\u79bb\u5b58\u50a8)<\/td>\nHash\/B-Tree (\u9ed8\u8ba4 Hash)<\/td>\n<\/tr>\n
\u6570\u636e\u5b58\u50a8\u6587\u4ef6<\/td>\n.ibd (\u8868\u7a7a\u95f4，\u542b\u6570\u636e+\u7d22\u5f15)<\/td>\n.MYD (\u6570\u636e\u6587\u4ef6)， .MYI (\u7d22\u5f15\u6587\u4ef6)<\/td>\n\u5185\u5b58\u4e2d (\u65e0\u78c1\u76d8\u6587\u4ef6，\u8868\u5b9a\u4e49\u5b58 .frm)<\/td>\n<\/tr>\n
\u538b\u7f29<\/td>\n\u652f\u6301\u9875\u538b\u7f29<\/td>\n\u652f\u6301\u8868\u538b\u7f29 (myisampack)<\/td>\n\u4e0d\u652f\u6301<\/td>\n<\/tr>\n
\u7f13\u5b58<\/td>\n\u7f13\u51b2\u6c60(Buffer Pool) \u7f13\u5b58\u6570\u636e\u548c\u7d22\u5f15<\/td>\n\u4ec5\u7f13\u5b58\u7d22\u5f15(Key Buffer)<\/td>\n\u6570\u636e\u672c\u8eab\u5373\u5728\u5185\u5b58<\/td>\n<\/tr>\n
\u5168\u6587\u7d22\u5f15<\/td>\nMySQL 5.6+ \u539f\u751f\u652f\u6301<\/td>\n\u652f\u6301<\/td>\n\u4e0d\u652f\u6301<\/td>\n<\/tr>\n
\u7a7a\u95f4\u7d22\u5f15<\/td>\nMySQL 5.7+ \u652f\u6301<\/td>\n\u652f\u6301<\/td>\n\u4e0d\u652f\u6301<\/td>\n<\/tr>\n
\u5b58\u50a8\u9650\u5236<\/td>\n\u7406\u8bba 64TB<\/td>\n\u7406\u8bba 256TB<\/td>\n\u53d7 max_heap_table_size \u9650\u5236<\/td>\n<\/tr>\n
\u6570\u636e\u6301\u4e45\u6027<\/td>\n\u6301\u4e45\u5316\u5230\u78c1\u76d8<\/td>\n\u6301\u4e45\u5316\u5230\u78c1\u76d8<\/td>\n\u91cd\u542f\u540e\u6570\u636e\u4e22\u5931 (\u4ec5\u9002\u5408\u4e34\u65f6\u6570\u636e)<\/td>\n<\/tr>\n
\u9002\u7528\u573a\u666f<\/td>\n\u6838\u5fc3\u4e1a\u52a1\u8868\u3001\u9700\u4e8b\u52a1\u3001\u9ad8\u5e76\u53d1\u5199\u3001\u6570\u636e\u4e00\u81f4\u6027<\/td>\n\u53ea\u8bfb\/\u8bfb\u591a\u5199\u5c11\u3001\u65e5\u5fd7\u3001\u6570\u636e\u4ed3\u5e93<\/td>\n\u4e34\u65f6\u8868\/\u7f13\u5b58\u3001\u6781\u901f\u67e5\u627e\u3001\u4e0d\u5173\u5fc3\u6301\u4e45\u5316<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8be6\u7ec6\u89e3\u6790<\/h4>\n
  • \n

    \u4e8b\u52a1\u652f\u6301 (ACID)<\/p>\n

      \n
    • InnoDB: \u6838\u5fc3\u4f18\u52bf\u4e4b\u4e00\u3002 \u5b8c\u5168\u652f\u6301\u4e8b\u52a1（BEGIN, COMMIT, ROLLBACK），\u6ee1\u8db3 ACID（\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u79bb\u6027\u3001\u6301\u4e45\u6027）\u7279\u6027\u3002\u8fd9\u662f\u9700\u8981\u786e\u4fdd\u6570\u636e\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u7684\u5e94\u7528（\u5982\u94f6\u884c\u4ea4\u6613\u3001\u8ba2\u5355\u7cfb\u7edf）\u7684\u5fc5\u5907\u9009\u62e9\u3002<\/li>\n
    • MyISAM \/ MEMORY: \u4e0d\u652f\u6301\u4e8b\u52a1\u3002 \u6267\u884c INSERT\u3001UPDATE\u3001DELETE \u7b49\u64cd\u4f5c\u4f1a\u76f4\u63a5\u4fee\u6539\u78c1\u76d8\/\u5185\u5b58\u6570\u636e，\u65e0\u6cd5\u56de\u6eda\u3002\u5982\u679c\u64cd\u4f5c\u4e2d\u9014\u51fa\u9519\u6216\u7cfb\u7edf\u5d29\u6e83，\u6570\u636e\u53ef\u80fd\u5904\u4e8e\u4e0d\u4e00\u81f4\u72b6\u6001\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n

      \u9501\u673a\u5236 (Locking)<\/p>\n

        \n
      • InnoDB: \u9ed8\u8ba4\u91c7\u7528\u884c\u7ea7\u9501\u3002\u5f53\u4fee\u6539\u6570\u636e\u65f6，\u53ea\u9501\u5b9a\u9700\u8981\u4fee\u6539\u7684\u7279\u5b9a\u884c，\u5176\u4ed6\u884c\u4ecd\u53ef\u88ab\u5e76\u53d1\u8bbf\u95ee\u3002\u8fd9\u6781\u5927\u5730\u63d0\u9ad8\u4e86\u5728\u9ad8\u5e76\u53d1\u5199\u5165\u573a\u666f\u4e0b\u7684\u6027\u80fd\u548c\u541e\u5410\u91cf\u3002\u5b83\u4e5f\u652f\u6301\u8868\u7ea7\u9501\u3002<\/li>\n
      • MyISAM: \u53ea\u652f\u6301\u8868\u7ea7\u9501\u3002\u4efb\u4f55\u5199\u64cd\u4f5c（INSERT, UPDATE, DELETE）\u90fd\u4f1a\u9501\u5b9a\u6574\u4e2a\u8868，\u963b\u585e\u8be5\u8868\u4e0a\u6240\u6709\u5176\u4ed6\u7684\u5199\u5165\u548c\u8bfb\u53d6\u64cd\u4f5c（\u5199\u9501\u6392\u65a5\u6240\u6709\u64cd\u4f5c）\u3002\u5e76\u53d1\u5199\u6027\u80fd\u5f88\u5dee，\u5c24\u5176\u5728\u5199\u5bc6\u96c6\u573a\u666f\u4e0b\u3002\u8bfb\u64cd\u4f5c\u4f1a\u52a0\u5171\u4eab\u9501（\u5141\u8bb8\u5176\u4ed6\u8bfb\u9501）\u3002<\/li>\n
      • MEMORY: \u4e5f\u4f7f\u7528\u8868\u7ea7\u9501\u3002\u5e76\u53d1\u5199\u5165\u6027\u80fd\u540c\u6837\u53d7\u9650\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \n

        \u5916\u952e\u7ea6\u675f (Foreign Keys)<\/p>\n

          \n
        • InnoDB: \u652f\u6301\u5916\u952e\u7ea6\u675f\u3002\u6570\u636e\u5e93\u672c\u8eab\u53ef\u4ee5\u5f3a\u5236\u7ef4\u62a4\u8868\u4e0e\u8868\u4e4b\u95f4\u5f15\u7528\u7684\u5b8c\u6574\u6027（REFERENCES \u548c ON DELETE\/UPDATE CASCADE\/SET NULL \u7b49\u89c4\u5219）\u3002<\/li>\n
        • MyISAM \/ MEMORY: \u4e0d\u652f\u6301\u5916\u952e\u7ea6\u675f\u3002\u5f15\u7528\u5b8c\u6574\u6027\u9700\u8981\u5728\u5e94\u7528\u5c42\u4ee3\u7801\u4e2d\u7ef4\u62a4\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \n

          \u5d29\u6e83\u6062\u590d (Crash Recovery)<\/p>\n

            \n
          • InnoDB: \u5177\u6709\u5f3a\u5927\u7684\u5d29\u6e83\u6062\u590d\u80fd\u529b\u3002\u5b83\u4f7f\u7528 Write-Ahead Logging \u673a\u5236（\u4e3b\u8981\u662f redo log）\u3002\u4e8b\u52a1\u63d0\u4ea4\u65f6，\u5148\u5c06\u4fee\u6539\u8bb0\u5f55\u5230 redo log (\u987a\u5e8f\u5199，\u5f88\u5feb)，\u7136\u540e\u518d\u5f02\u6b65\u5237\u65b0\u5230\u78c1\u76d8\u6570\u636e\u6587\u4ef6\u4e2d\u3002\u5982\u679c\u6570\u636e\u5e93\u5d29\u6e83，\u91cd\u542f\u65f6\u53ef\u4ee5\u6839\u636e redo log \u91cd\u505a\u5df2\u7ecf\u63d0\u4ea4\u4f46\u672a\u5199\u5165\u6570\u636e\u6587\u4ef6\u7684\u4e8b\u52a1，\u6216\u8005\u56de\u6eda\u672a\u63d0\u4ea4\u7684\u4e8b\u52a1，\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u6301\u4e45\u6027\u3002<\/li>\n
          • MyISAM: \u5d29\u6e83\u6062\u590d\u80fd\u529b\u8f83\u5f31\u3002\u53d1\u751f\u5d29\u6e83\u540e，\u8868\u66f4\u5bb9\u6613\u635f\u574f（\u5982\u7d22\u5f15\u6587\u4ef6 .MYI \u635f\u574f）\u3002\u901a\u5e38\u9700\u8981\u4f7f\u7528 CHECK TABLE \/ REPAIR TABLE \u547d\u4ee4\u6765\u68c0\u67e5\u5e76\u5c1d\u8bd5\u4fee\u590d\u8868，\u4f46\u4fee\u590d\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u3002<\/li>\n
          • MEMORY: \u91cd\u542f\u540e\u6570\u636e\u4e22\u5931\u3002\u7531\u4e8e\u6570\u636e\u53ea\u5b58\u50a8\u5728\u5185\u5b58\u4e2d，MySQL \u670d\u52a1\u91cd\u542f\u6216\u670d\u52a1\u5668\u91cd\u542f\u90fd\u4f1a\u5bfc\u81f4\u6240\u6709 MEMORY \u8868\u4e2d\u7684\u6570\u636e\u5b8c\u5168\u4e22\u5931\u3002<\/li>\n<\/ul>\n<\/li>\n
          • \n

            MVCC (Multi-Versioning Concurrency Control)<\/p>\n

              \n
            • InnoDB: \u652f\u6301 MVCC\u3002\u8fd9\u662f\u5b9e\u73b0\u9ad8\u5e76\u53d1\u8bfb\u7684\u5173\u952e\u673a\u5236\u3002\u5b83\u4e3a\u6bcf\u4e2a\u8bfb\u53d6\u64cd\u4f5c\u63d0\u4f9b\u4e00\u4e2a\u6570\u636e\u5e93\u5728\u67d0\u4e2a\u65f6\u95f4\u70b9\u7684\u5feb\u7167（\u4e00\u81f4\u6027\u8bfb\u89c6\u56fe）\u3002\u8bfb\u64cd\u4f5c\u4e0d\u4f1a\u963b\u585e\u5199\u64cd\u4f5c，\u5199\u64cd\u4f5c\u4e5f\u4e0d\u4f1a\u963b\u585e\u8bfb\u64cd\u4f5c（\u9664\u4e86\u5199\u64cd\u4f5c\u4e4b\u95f4\u9700\u8981\u7684\u884c\u9501）\u3002<\/li>\n
            • MyISAM \/ MEMORY: \u4e0d\u652f\u6301 MVCC\u3002\u8bfb\u64cd\u4f5c\u9700\u8981\u7b49\u5f85\u5199\u9501\u91ca\u653e（\u5728 MyISAM \u8868\u7ea7\u9501\u4e0b），\u6216\u8005\u5199\u64cd\u4f5c\u9700\u8981\u7b49\u5f85\u8bfb\u9501\u91ca\u653e（\u8f83\u5c11\u89c1），\u5e76\u53d1\u8bfb\u5199\u6027\u80fd\u8f83\u5dee\u3002<\/li>\n<\/ul>\n<\/li>\n
            • \n

              \u7d22\u5f15\u7ed3\u6784 (Indexing)<\/p>\n

                \n
              • InnoDB: \u4f7f\u7528\u805a\u7c07\u7d22\u5f15\u3002\u8fd9\u610f\u5473\u7740\u8868\u6570\u636e\u672c\u8eab\u662f\u6309\u7167\u4e3b\u952e\u7684\u987a\u5e8f\u7269\u7406\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u7684（\u4e3b\u952e\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u76f4\u63a5\u5305\u542b\u884c\u6570\u636e）\u3002\u56e0\u6b64\u57fa\u4e8e\u4e3b\u952e\u7684\u67e5\u8be2\u975e\u5e38\u9ad8\u6548\u3002\u6240\u6709\u4e8c\u7ea7\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u5b58\u50a8\u7684\u662f\u4e3b\u952e\u503c（\u800c\u4e0d\u662f\u6307\u5411\u884c\u7684\u7269\u7406\u6307\u9488）\u3002\u8fd9\u53ef\u80fd\u5bfc\u81f4\u4e8c\u7ea7\u7d22\u5f15\u67e5\u627e\u9700\u8981\u56de\u8868（\u901a\u8fc7\u4e3b\u952e\u518d\u67e5\u4e00\u6b21\u805a\u7c07\u7d22\u5f15）\u3002\u652f\u6301 B-Tree \u7d22\u5f15（\u9ed8\u8ba4）\u548c\u81ea\u9002\u5e94\u54c8\u5e0c\u7d22\u5f15（\u5185\u90e8\u81ea\u52a8\u7ba1\u7406）\u3002<\/li>\n
              • MyISAM: \u4f7f\u7528\u975e\u805a\u7c07\u7d22\u5f15（\u5806\u7ec4\u7ec7\u8868）\u3002\u6570\u636e\u6587\u4ef6（.MYD）\u548c\u7d22\u5f15\u6587\u4ef6（.MYI）\u662f\u5206\u5f00\u5b58\u50a8\u7684\u3002\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u5b58\u50a8\u7684\u662f\u6307\u5411\u6570\u636e\u6587\u4ef6\u4e2d\u884c\u4f4d\u7f6e\u7684\u7269\u7406\u6307\u9488（\u5982\u504f\u79fb\u91cf）\u3002\u652f\u6301 B-Tree \u7d22\u5f15（\u9ed8\u8ba4）\u3001R-Tree \u7a7a\u95f4\u7d22\u5f15（\u7528\u4e8e GIS \u6570\u636e）\u548c Full-text \u5168\u6587\u7d22\u5f15\u3002\u538b\u7f29\u8868\u4ec5\u652f\u6301\u67e5\u8be2\u3002<\/li>\n
              • MEMORY: \u9ed8\u8ba4\u4f7f\u7528 Hash \u7d22\u5f15\u3002Hash \u7d22\u5f15\u5bf9\u4e8e\u7cbe\u786e\u5339\u914d\u67e5\u8be2（=， IN）\u6548\u7387\u6781\u9ad8（O(1) \u65f6\u95f4\u590d\u6742\u5ea6）\u3002\u4e5f\u652f\u6301 B-Tree \u7d22\u5f15（\u901a\u8fc7 USING BTREE \u521b\u5efa）\u3002\u4e0d\u652f\u6301 TEXT\/BLOB \u7c7b\u578b\u3002<\/li>\n<\/ul>\n<\/li>\n
              • \n

                \u7269\u7406\u5b58\u50a8<\/p>\n

                  \n
                • InnoDB: \u6570\u636e\u5b58\u50a8\u5728\u8868\u7a7a\u95f4\u4e2d\u3002\u53ef\u4ee5\u662f\u5171\u4eab\u8868\u7a7a\u95f4（ibdata1）\u6216\u72ec\u7acb\u8868\u7a7a\u95f4（\u6bcf\u4e2a\u8868\u4e00\u4e2a .ibd \u6587\u4ef6，\u73b0\u4ee3\u7248\u672c\u7684\u9ed8\u8ba4\u65b9\u5f0f）\u3002\u6570\u636e\u548c\u7d22\u5f15\u901a\u5e38\u5b58\u50a8\u5728\u4e00\u8d77（\u805a\u7c07\u7d22\u5f15）\u3002<\/li>\n
                • MyISAM: \u6bcf\u4e2a\u8868\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u7684\u4e09\u4e2a\u6587\u4ef6\u4e2d：\n
                    \n
                  • .frm: \u8868\u7ed3\u6784\u5b9a\u4e49\u6587\u4ef6\u3002<\/li>\n
                  • .MYD (MYData): \u5b9e\u9645\u6570\u636e\u6587\u4ef6\u3002<\/li>\n
                  • .MYI (MYIndex): \u7d22\u5f15\u6587\u4ef6\u3002<\/li>\n<\/ul>\n<\/li>\n
                  • MEMORY: \u6570\u636e\u4ec5\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u3002\u8868\u7ed3\u6784\u5b9a\u4e49\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u7684 .frm \u6587\u4ef6\u4e2d\u3002\u6ca1\u6709\u5bf9\u5e94\u7684\u78c1\u76d8\u6570\u636e\u6587\u4ef6\u3002MySQL \u670d\u52a1\u91cd\u542f\u540e，\u8868\u7ed3\u6784\u4fdd\u7559，\u4f46\u6570\u636e\u4e22\u5931\u3002<\/li>\n<\/ul>\n<\/li>\n
                  • \n

                    \u7f13\u5b58<\/p>\n

                      \n
                    • InnoDB: \u4f7f\u7528 \u7f13\u51b2\u6c60 (Buffer Pool)\u3002\u8fd9\u662f\u5185\u5b58\u4e2d\u7684\u4e00\u5927\u5757\u533a\u57df，\u7528\u4e8e\u7f13\u5b58\u8868\u6570\u636e\u548c\u7d22\u5f15\u3002\u8fd9\u662f InnoDB \u6027\u80fd\u7684\u5173\u952e，\u80fd\u6781\u5927\u51cf\u5c11\u78c1\u76d8 I\/O\u3002<\/li>\n
                    • MyISAM: \u4e3b\u8981\u4f9d\u8d56\u64cd\u4f5c\u7cfb\u7edf\u7684\u6587\u4ef6\u7cfb\u7edf\u7f13\u5b58\u6765\u7f13\u5b58\u6570\u636e（.MYD）\u3002Key Buffer \u7528\u4e8e\u7f13\u5b58\u7d22\u5f15（.MYI）\u3002<\/li>\n
                    • MEMORY: \u6570\u636e\u672c\u8eab\u5c31\u5728\u5185\u5b58\u4e2d\u3002\u4e0d\u9700\u8981\u989d\u5916\u7684\u7f13\u5b58\u673a\u5236\u6765\u907f\u514d\u78c1\u76d8 I\/O\u3002<\/li>\n<\/ul>\n<\/li>\n
                    • \n

                      \u538b\u7f29<\/p>\n

                        \n
                      • InnoDB: \u652f\u6301\u9875\u7ea7\u522b\u538b\u7f29（\u9700\u8981\u5e95\u5c42\u6587\u4ef6\u7cfb\u7edf\u652f\u6301）\u3002<\/li>\n
                      • MyISAM: \u652f\u6301\u8868\u7ea7\u522b\u538b\u7f29（\u4f7f\u7528 myisampack \u5de5\u5177），\u751f\u6210\u53ea\u8bfb\u538b\u7f29\u8868，\u975e\u5e38\u9002\u5408\u5f52\u6863\u6216\u53ea\u8bfb\u65e5\u5fd7\u6570\u636e\u3002<\/li>\n
                      • MEMORY: \u4e0d\u652f\u6301\u538b\u7f29\u3002<\/li>\n<\/ul>\n<\/li>\n
                      • \n

                        \u9002\u7528\u573a\u666f\u603b\u7ed3<\/p>\n

                          \n
                        • InnoDB: \u7edd\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u7684\u9996\u9009\u5f15\u64ce\u3002 \u9002\u7528\u4e8e\u9700\u8981\u4e8b\u52a1\u652f\u6301（\u4fdd\u8bc1\u4e00\u81f4\u6027）\u3001\u9ad8\u5e76\u53d1\u8bfb\u5199（\u884c\u7ea7\u9501）\u3001\u5916\u952e\u7ea6\u675f\u3001\u826f\u597d\u5d29\u6e83\u6062\u590d\u80fd\u529b\u7684\u573a\u5408\u3002\u5982\u6838\u5fc3\u4e1a\u52a1\u8868\u3001\u8ba2\u5355\u7cfb\u7edf\u3001\u7528\u6237\u8d26\u6237\u4fe1\u606f\u7b49\u3002\u5bf9\u4e8e\u5199\u5bc6\u96c6\u578b\u5e94\u7528（\u5982\u9ad8\u5e76\u53d1\u63d2\u5165\u3001\u66f4\u65b0）\u8868\u73b0\u66f4\u597d\u3002<\/li>\n
                        • MyISAM: \u9010\u6e10\u88ab InnoDB \u53d6\u4ee3\u3002 \u9002\u7528\u4e8e：\n
                            \n
                          • \u53ea\u8bfb\u6216\u8bfb\u591a\u5199\u5c11\u7684\u5e94\u7528（\u8868\u7ea7\u9501\u5728\u7eaf\u8bfb\u65f6\u5e76\u53d1\u597d）\u3002<\/li>\n
                          • \u4e0d\u9700\u8981\u4e8b\u52a1\u652f\u6301\u3002<\/li>\n
                          • \u4e0d\u9700\u8981\u5916\u952e\u7ea6\u675f\u3002<\/li>\n
                          • \u5bf9\u5d29\u6e83\u6062\u590d\u8981\u6c42\u4e0d\u9ad8（\u6216\u80fd\u63a5\u53d7\u624b\u52a8\u4fee\u590d）\u3002<\/li>\n
                          • \u9700\u8981\u5168\u6587\u7d22\u5f15（\u4f46\u5728 MySQL 5.6+ InnoDB \u4e5f\u652f\u6301\u4e86）\u6216\u7a7a\u95f4\u7d22\u5f15（GIS \u6570\u636e）\u3002<\/li>\n
                          • \u65e5\u5fd7\u8868\u3001\u6570\u636e\u4ed3\u5e93\u7684\u53ea\u8bfb\u9636\u6bb5\u8868（\u53ef\u5229\u7528\u538b\u7f29\u8282\u7701\u7a7a\u95f4）\u3002<\/li>\n<\/ul>\n<\/li>\n
                          • MEMORY: \u4e34\u65f6\u6570\u636e\u5b58\u50a8\u3002 \u9002\u7528\u4e8e：\n
                              \n
                            • \u9700\u8981\u6781\u9ad8\u901f\u5ea6\u8bbf\u95ee\u7684\u3001\u4e34\u65f6\u7684\u3001\u975e\u5173\u952e\u7684\u6570\u636e\u3002<\/li>\n
                            • \u6570\u636e\u91cf\u4e0d\u5927\u4e14\u80fd\u5b8c\u5168\u653e\u5165\u5185\u5b58（\u53d7 max_heap_table_size \u9650\u5236）\u3002<\/li>\n
                            • \u6570\u636e\u53ef\u4ee5\u5bb9\u5fcd\u91cd\u542f\u540e\u4e22\u5931\u3002<\/li>\n
                            • \u5982\u4f1a\u8bdd\u7ba1\u7406（\u5982\u679c\u4e0d\u9700\u8981\u6301\u4e45\u5316）\u3001\u7f13\u5b58\u4e2d\u95f4\u7ed3\u679c\u3001\u67e5\u627e\u8868（\u5982\u90ae\u7f16\u6620\u5c04）\u3001\u4e34\u65f6\u5904\u7406\u533a\u57df\u7b49\u3002\u4e0d\u9002\u5408\u5b58\u50a8\u5927\u91cf\u6570\u636e\u6216\u9700\u8981\u6301\u4e45\u5316\u7684\u6570\u636e\u3002 \u6ce8\u610f：MEMORY \u8868\u4f7f\u7528\u56fa\u5b9a\u957f\u5ea6\u884c\u683c\u5f0f，VARCHAR \u4f1a\u8f6c\u6362\u4e3a CHAR，\u53ef\u80fd\u6d6a\u8d39\u7a7a\u95f4\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n

                              \u9009\u62e9\u5efa\u8bae<\/h4>\n
                                \n
                              • \u9ed8\u8ba4\u9009\u62e9 InnoDB： \u9664\u975e\u6709\u975e\u5e38\u660e\u786e\u4e14\u5f3a\u6709\u529b\u7684\u7406\u7531\u9009\u62e9\u5176\u4ed6\u5f15\u64ce，\u5426\u5219\u90fd\u5e94\u8be5\u4f7f\u7528 InnoDB\u3002\u5b83\u63d0\u4f9b\u4e86\u4e8b\u52a1\u5b89\u5168\u6027\u3001\u884c\u7ea7\u9501\u3001\u5d29\u6e83\u6062\u590d\u7b49\u73b0\u4ee3\u6570\u636e\u5e93\u5e94\u7528\u5fc5\u9700\u7684\u57fa\u77f3\u7279\u6027，\u6027\u80fd\u4e5f\u7ecf\u8fc7\u4e86\u9ad8\u5ea6\u4f18\u5316\u3002<\/li>\n
                              • \u8c28\u614e\u4f7f\u7528 MyISAM： \u4ec5\u5728\u7279\u5b9a\u7684\u53ea\u8bfb\u3001\u65e0\u4e8b\u52a1\u8981\u6c42\u3001\u7a7a\u95f4\u7d22\u5f15\u6216\u538b\u7f29\u9700\u6c42\u573a\u666f\u8c28\u614e\u8003\u8651\u3002\u9700\u5145\u5206\u610f\u8bc6\u5230\u5176\u8868\u9501\u548c\u5d29\u6e83\u6062\u590d\u7684\u7f3a\u9677\u3002<\/li>\n
                              • \u7279\u5b9a\u573a\u666f\u4f7f\u7528 MEMORY： \u4ec5\u5728\u660e\u786e\u9700\u8981\u5185\u5b58\u7ea7\u901f\u5ea6\u3001\u6570\u636e\u4e34\u65f6\u4e14\u53ef\u4e22\u5931\u65f6\u4f7f\u7528\u3002\u52a1\u5fc5\u76d1\u63a7\u5185\u5b58\u4f7f\u7528\u5e76\u8bbe\u7f6e\u5408\u7406\u7684 max_heap_table_size\u3002<\/li>\n<\/ul>\n

                                \u7406\u89e3\u8fd9\u4e9b\u5f15\u64ce\u7684\u6838\u5fc3\u5dee\u5f02\u5bf9\u4e8e\u8bbe\u8ba1\u9ad8\u6027\u80fd\u3001\u53ef\u9760\u548c\u53ef\u7ef4\u62a4\u7684 MySQL \u6570\u636e\u5e93\u81f3\u5173\u91cd\u8981\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u3001\u8bfb\u5199\u6a21\u5f0f\u3001\u6570\u636e\u91cf\u3001\u4e00\u81f4\u6027\u8981\u6c42\u548c\u5bf9\u901f\u5ea6\/\u6301\u4e45\u6027\u7684\u6743\u8861\u6765\u505a\u51fa\u6700\u9002\u5408\u7684\u9009\u62e9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                                \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb531\u6b21\uff0c\u70b9\u8d5e23\u6b21\uff0c\u6536\u85cf6\u6b21\u3002MySQL \u5b58\u50a8\u5f15\u64ce InnoDB\u3001MyISAM \u548c MEMORY \u7684\u6838\u5fc3\u533a\u522b\uff1a \u4e8b\u52a1\u652f\u6301\uff1a\u4ec5 InnoDB \u652f\u6301 ACID \u4e8b\u52a1 \u9501\u673a\u5236\uff1aInnoDB \u884c\u9501 vs \u5176\u4ed6\u8868\u9501 \u7d22\u5f15\u7ed3\u6784\uff1aInnoDB \u805a\u7c07\u7d22\u5f15\uff0cMyISAM \u975e\u805a\u7c07\uff0cMEMORY \u9ed8\u8ba4 Hash \u7d22\u5f15 \u6301\u4e45\u6027\uff1aInnoDB\/MyISAM \u6301\u4e45\u5316\uff0cMEMORY \u4ec5\u5185\u5b58\u5b58\u50a8 \u9002\u7528\u573a\u666f\uff1a InnoDB\uff1a\u6838\u5fc3\u4e1a\u52a1\uff08\u4e8b\u52a1\/\u9ad8\u5e76\u53d1\uff09 MyISAM\uff1a\u8bfb\u591a\u5199\u5c11\uff08\u65e5\u5fd7\/\u4ed3\u5e93\uff09 MEMORY\uff1a\u4e34\u65f6\u6570\u636e\/\u7f13\u5b58 InnoDB \u7efc\u5408\u6027\u80fd\u6700\u4f18\uff0c\u652f\u6301\u4e8b\u52a1\u548c\u5916\u952e\uff0c\u662f\u73b0\u4ee3 M<\/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-55409","post","type-post","status-publish","format-standard","hentry","category-server","tag-mysql","tag-100"],"yoast_head":"\nMySQL\u4e09\u5927\u5b58\u50a8\u5f15\u64ce\u5bf9\u6bd4\uff1aInnoDB vs MyISAM vs MEMORY - 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