{"id":16380,"date":"2024-09-18T14:02:26","date_gmt":"2024-09-18T06:02:26","guid":{"rendered":"https:\/\/92it.top\/?p=16380"},"modified":"2024-09-18T14:02:56","modified_gmt":"2024-09-18T06:02:56","slug":"mysql-%e6%98%af%e5%a6%82%e4%bd%95%e6%89%a7%e8%a1%8c%e6%9f%a5%e8%af%a2%e6%93%8d%e4%bd%9c%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=16380","title":{"rendered":"MySQL \u662f\u5982\u4f55\u6267\u884c\u67e5\u8be2\u64cd\u4f5c\u7684\uff1f"},"content":{"rendered":"\n

\u8f6c\u8f7d\uff1aMySQL \u662f\u5982\u4f55\u6267\u884c\u67e5\u8be2\u64cd\u4f5c\u7684\uff1f<\/a><\/p>\n\n\n\n

\u4f5c\u4e3a\u4e00\u540d Java\u540e\u7aef\u7a0b\u5e8f\u5458\uff0cMySQL\u5e94\u8be5\u662f\u63a5\u89e6\u6700\u591a\u7684\u6570\u636e\u5e93\u4e4b\u4e00\uff0c\u589e\u5220\u6539\u67e5\u66f4 MySQL\u6570\u636e\u5e93\u7684\u5e38\u89c4\u64cd\u4f5c\u3002 \u90a3\u4e48\uff0c\u4e00\u6761 SQL\u8bed\u53e5\u5728\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\u7ecf\u5386\u4e86\u54ea\u4e9b\u6d41\u7a0b\u5462\uff1f\u5b83\u662f\u5982\u4f55\u88ab MySQL\u6267\u884c\u7684\uff1f\u8fd9\u7bc7\u6587\u7ae0\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u5730\u5206\u6790\u3002<\/p>\n\n\n\n

\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\uff0c\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b MySQL\u7684\u67b6\u6784\u3002<\/p>\n\n\n\n

MySQL\u67b6\u6784\u793a\u610f\u56fe<\/strong><\/p>\n\n\n\n

\n\n\n\n

MySQL\u662f\u5178\u578b\u7684C\/S\u67b6\u6784\uff0cSQL\u6574\u4e2a\u6267\u884c\u6d41\u7a0b\u5305\u62ec\uff1a\u5ba2\u6237\u7aef\uff0cServer\u5c42\u548c\u5b58\u50a8\u5f15\u64ce\u5c42\u4e09\u90e8\u5206\u3002<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n
\n
\"\"<\/figure><\/div>\n\n\n

C\/S\u67b6\u6784\uff0cC\u662f\u6307 Client \u5ba2\u6237\u7aef\uff0cS\u662f\u6307 Server \u670d\u52a1\u7aef\u3002<\/p>\n\n\n\n

\u6d41\u7a0b\u56fe<\/strong><\/p>\n\n\n\n

\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n

MySQL \u6574\u4e2a\u67e5\u8be2\u6267\u884c\u8fc7\u7a0b\uff0c\u5206\u4e3a 6 \u4e2a\u5927\u6b65\u9aa4\uff0c\u5982\u4e0a\u56fe\uff1a\u8fde\u63a5\u5efa\u7acb\u3001\u67e5\u8be2\u7f13\u5b58\u3001SQL\u89e3\u6790\u3001\u4f18\u5316SQL\u67e5\u8be2\u3001\u8c03\u7528\u5f15\u64ce\uff0c\u8fd4\u56de\u7ed3\u679c<\/strong><\/p>\n\n\n\n

    \n
  1. \u8fde\u63a5\u5efa\u7acb\uff1a\u5ba2\u6237\u7aef\u5411 MySQL \u670d\u52a1\u5668\u53d1\u9001\u4e00\u6761\u67e5\u8be2\u8bf7\u6c42\uff0c\u4e0e Connectors \u4ea4\u4e92\uff0c\u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\u3001\u8fde\u63a5\u5206\u914d\u7b49\u64cd\u4f5c\u3002\u5982\u9a8c\u8bc1\u901a\u8fc7\uff0c\u4f1a\u6682\u65f6\u5b58\u653e\u5728\u8fde\u63a5\u6c60\u4e2d\u5e76\u7531Management Serveices & Utilities \u7ba1\u7406\u3002\u5f53\u8be5\u8bf7\u6c42\u4ece\u7b49\u5f85\u961f\u5217\u8fdb\u5165\u5230\u5904\u7406\u961f\u5217\uff0c\u7ba1\u7406\u5668\u4f1a\u5c06\u8be5\u8bf7\u6c42\u4f20\u9012\u7ed9 SQL Interface<\/li>\n\n\n\n
  2. \u67e5\u8be2\u7f13\u5b58\uff1aSQL Interface \u63a5\u6536\u5230\u8bf7\u6c42\u540e\uff0c\u9996\u5148\u5bf9\u8bf7\u6c42\u8fdb\u884c hash \u5904\u7406\u5e76\u68c0\u67e5\u67e5\u8be2\u7f13\u5b58\uff0c\u5982\u679c\u547d\u4e2d\u7f13\u5b58\uff0c\u5219\u7acb\u523b\u8fd4\u56de\u5b58\u50a8\u5728\u7f13\u5b58\u4e2d\u7684\u7ed3\u679c\uff0c\u5426\u5219\u8fdb\u5165\u540e\u7eed\u6d41\u7a0b\uff0c\u4f20\u9012\u7ed9 Parser<\/li>\n\n\n\n
  3. SQL \u89e3\u6790\uff1aParser \u5bf9 SQL \u8fdb\u884c\u89e3\u6790(\u8bcd\u6cd5\u3001\u8bed\u6cd5\u3001\u8bed\u4e49)\uff0c\u5c06 SQL \u8f6c\u5316\u4e3a\u8bed\u6cd5\u6811\uff0c\u5e76\u4f20\u9012\u7ed9\u9884\u5904\u7406\u5668<\/li>\n\n\n\n
  4. SQL \u9884\u5904\u7406\uff1a\u9884\u5904\u7406\u5668\u4f1a\u8fdb\u884c\u8868\/\u5b57\u6bb5\u5b58\u5728\u6027\u9a8c\u8bc1\u3001\u6743\u9650\u9a8c\u8bc1\u7b49\u64cd\u4f5c\uff0c\u5b8c\u6210\u540e\u4f20\u9012\u7ed9 Optimizer<\/li>\n\n\n\n
  5. SQL \u4f18\u5316\uff1aOptimizer \u7ed3\u5408\u8bed\u6cd5\u6811\u7684\u8bed\u4e49\u548c\u76ee\u6807\u6570\u636e\u5e93\u7edf\u8ba1\u4fe1\u606f\u751f\u6210 MySQL \u8ba4\u4e3a\u7684\u6700\u4f73\u6267\u884c\u8ba1\u5212<\/li>\n\n\n\n
  6. SQL \u6267\u884c\uff1aMySQL \u6839\u636e\u6267\u884c\u8ba1\u5212\uff0c\u8c03\u7528\u5b58\u50a8\u5f15\u64ce\u7684 API \u6765\u6267\u884c\u67e5\u8be2<\/li>\n\n\n\n
  7. \u8fd4\u56de\u7ed3\u679c\uff1a\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0c\u540c\u65f6\u5982\u4e3a select \u8bf7\u6c42\u5219\u7f13\u5b58\u67e5\u8be2\u7ed3\u679c<\/li>\n<\/ol>\n\n\n\n

    \u6a21\u5757\u5206\u6790<\/strong><\/p>\n\n\n\n

    \n\n\n\n

    1. \u5ba2\u6237\u7aef<\/strong><\/p>\n\n\n\n

    \u5ba2\u6237\u7aef\u662f\u6307\u8fde\u63a5\u4f7f\u7528MySQL\u7684\u7ec8\u7aef\u3002\u5e38\u89c1\u7684MySQL\u5ba2\u6237\u7aef\u6709\uff1ajava\u4ee3\u7801\uff0c\u8fd9\u4e2a\u662fjava\u7a0b\u5e8f\u5458\u4f7f\u7528\u6700\u591a\u7684\uff0c\u6bd4\u5982mybatis ORM\u6846\u67b6\uff1bnavicat\u5de5\u5177\uff0c\u529f\u80fd\u5f3a\u5927\uff0c\u80fd\u591f\u53ef\u89c6\u5316\u64cd\u4f5c\u5f88\u591a\u79cd\u6570\u636e\u5e93\uff1bmysql-cli\uff0c\u8fd9\u4e2a\u662fMySQL\u5b98\u65b9\u81ea\u5e26\u7684\u5ba2\u6237\u7aef\uff1b\u8fd8\u6709\u4e00\u4e9b\u7f51\u9875\u7248\u7684\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n

    2. Server\u5c42<\/strong><\/p>\n\n\n\n

    Server\u5c42\u662fMySQL\u7684\u6838\u5fc3\u6a21\u5757\uff0cServer\u5c42\u5305\u542b \u8fde\u63a5\u5668\u3001\u67e5\u8be2\u7f13\u5b58\u3001\u5206\u6790\u5668\u3001\u4f18\u5316\u5668\u3001\u6267\u884c\u5668\u7b49\u6838\u5fc3\u7ec4\u4ef6\uff0c \u6db5\u76d6\u4e86MySQL\u5927\u591a\u6570\u6838\u5fc3\u670d\u52a1\u4ee5\u53ca\u6240\u6709\u7684\u5185\u7f6e\u51fd\u6570\uff0c\u8bf8\u5982 \u5b58\u50a8\u8fc7\u7a0b\u3001\u89e6\u53d1\u5668\u3001\u89c6\u56fe\u7b49\u6240\u6709\u8de8\u5b58\u50a8\u5f15\u64ce\u7684\u529f\u80fd\u4e5f\u90fd\u5728Server\u5c42\u5b9e\u73b0\u3002\u4e0b\u9762\u5c06\u5206\u522b\u8bb2\u89e3\u51e0\u4e2a\u6838\u5fc3\u7ec4\u4ef6\u3002<\/p>\n\n\n\n

    \u8fde\u63a5\u5668<\/strong><\/p>\n\n\n\n

    \u8fde\u63a5\u5668\u7684\u4e3b\u8981\u529f\u80fd\u662f\u8fde\u63a5\u7ba1\u7406\u548c\u6743\u9650\u6821\u9a8c\u3002\u5f53\u5ba2\u6237\u7aef\u8bf7\u6c42\u8fc7\u6765\u65f6\uff0c\u9996\u5148\u662f\u548cServer\u5c42\u7684\u8fde\u63a5\u5668\u4ea4\u4e92\u3002<\/p>\n\n\n\n

    \u4e0b\u9762\u901a\u8fc7\u4e00\u4e2a\u5b9e\u4f8b\u6765\u8bb2\u89e3\u8fde\u63a5\u5c42\u7684\u529f\u80fd\uff0c\u6bd4\u5982\uff1amysql-cli\u5ba2\u6237\u7aef\u8fde\u63a5MySQL Server\u7684\u547d\u4ee4<\/p>\n\n\n\n

    mysql> mysql -h 127.0.0.1 -P 3306 -uroot -p\n<\/pre>\n\n\n\n
    \u6574\u4e2a\u8fc7\u7a0b\u5206\u89e3\u4e3a\uff1a<\/p>\n\n\n\n
    \u8f93\u5165\u6307\u4ee4\uff0c\u70b9\u51fb Enter\u952e\u540e\u4f1a\u5b8c\u6210\u7ecf\u5178\u7684TCP 3\u6b21\u63e1\u624b\uff0c\u5ba2\u6237\u7aef\u548cMySQL Server\u5efa\u7acbTCP\u8fde\u63a5\u3002

    \u8fde\u63a5\u5efa\u7acb\u540e\uff0c\u8fde\u63a5\u5668\u5f00\u59cb\u5bf9\u8bf7\u6c42\u8fdb\u884c\u6743\u9650\u6821\u9a8c\uff0c\u5982\u679cServer\u5c42\u914d\u7f6e\u9700\u8981\u5bc6\u7801\u6821\u9a8c\uff0c\u4f1a\u63d0\u9192\u7528\u6237\u8f93\u5165\u5bc6\u7801\uff0c\u5bc6\u7801\u6b63\u786e\u8fdb\u5165\u4e0b\u4e00\u6b65\uff0c\u5bc6\u7801\u9519\u8bef\u63d0\u9192\"Access denied for user\"; \u5982\u679cServer\u5c42\u914d\u7f6e\u4e0d\u9700\u8981\u5bc6\u7801\u6821\u9a8c\uff0c\u5219\u76f4\u63a5\u8fdb\u5165\u4e0b\u4e00\u6b65

    \u6743\u9650\u9a8c\u8bc1\u6210\u529f\u540e\uff0c\u8fde\u63a5\u5668\u4f1a\u4ece\u6743\u9650\u8868\u628a\u5f53\u524d\u7528\u6237\u7684\u6240\u6709\u6743\u9650\u67e5\u8be2\u5e76\u7f13\u5b58\u8d77\u6765\uff0c\u6743\u9650\u7f13\u5b58\u7684\u751f\u547d\u5468\u671f\u4e00\u76f4\u5230\u8be5\u8fde\u63a5\u5173\u95ed\u3002<\/pre>\n\n\n\n
    \u8fde\u63a5\u5668\u4f1a\u628a\u6743\u9650\u7f13\u5b58\uff0c\u56e0\u6b64\uff0c\u53ea\u8981\u8be5\u8fde\u63a5\u4e00\u76f4\u5b58\u5728\u5c31\u4f1a\u4f7f\u7528\u7f13\u5b58\u4e2d\u7684\u6743\u9650\uff0c\u8fd9\u5c31\u610f\u5473\u7740\uff0c\u5373\u4fbf\u670d\u52a1\u5668\u66f4\u6539\u4e86\u8be5\u7528\u6237\u7684\u6743\u9650\uff0c\u53ea\u8981\u662f\u5728\u6743\u9650\u66f4\u6539\u524d\u8fd8\u5b58\u6d3b\u7684\u8fde\u63a5\uff0c\u65b0\u7684\u6743\u9650\u4e0d\u751f\u6548\u3002\u8fd9\u4e5f\u80fd\u5f88\u597d\u5730\u89e3\u91ca\uff0c \u6709\u65f6\u5019\u670d\u52a1\u7aef\u4fee\u6539\u4e86\u6743\u9650\u914d\u7f6e\uff0c\u5ba2\u6237\u7aef\u4e0d\u80fd\u53ca\u65f6\u751f\u6548\u3002<\/p>\n\n\n\n
    \u67e5\u8be2\u7f13\u5b58<\/strong><\/p>\n\n\n\n
    \u7f13\u5b58\u662f MySQL\u4e3a\u4e86\u52a0\u901f\u67e5\u8be2\u800c\u8bbe\u7f6e\u7684\uff0c\u5f53\u8bf7\u6c42\u9274\u6743\u5b8c\u6210\u4e4b\u540e\uff0c\u5c31\u4f1a\u5230\u6267\u884c\u7f13\u5b58\u67e5\u8be2(Server\u5c42\u5f00\u542f\u4e86\u7f13\u5b58)\uff0c\u5982\u679c\u547d\u4e2d\u7f13\u5b58\uff0c\u5219\u76f4\u63a5\u8fd4\u56de\uff0c\u5426\u5219\u8fdb\u5165\u4e0b\u4e00\u6b65\u3002\u4e0d\u8fc7\u6839\u636e\u5c0f\u7f16\u5267\u8fd9\u4e48\u591a\u5e74\u7684\u5de5\u4f5c\u7ecf\u9a8c\uff0c \u7f13\u5b58\u4f7f\u7528\u7684\u573a\u666f\u6bd4\u8f83\u5c11\uff0c\u6bd4\u5982\uff1aMySQL\u4e2d\u5b58\u653e\u7684\u662f\u4e00\u4e9b\u9759\u6001\u6570\u636e\u6216\u8005\u53d8\u66f4\u9891\u7387\u7279\u522b\u4f4e\uff0c\u5176\u4ed6\u7684\u573a\u666f\u8fd9\u4e2a\u529f\u80fd\u5c31\u6bd4\u8f83\u9e21\u808b\u4e86\uff0c\u600e\u4e48\u9e21\u808b\u5462\uff1f<\/p>\n\n\n\n
    \u56e0\u4e3a\u53ea\u8981\u5bf9\u8868\u6709\u66f4\u65b0\u64cd\u4f5c\uff0c\u67e5\u8be2\u7f13\u5b58\u5c31\u4f1a\u5931\u6548\uff0c\u5982\u679c\u8868\u7684\u66f4\u65b0\u548c\u67e5\u8be2\u64cd\u4f5c\u6bd4\u8f83\u9891\u7e41\uff0c\u90a3\u4e48\u7f13\u5b58\u5c31\u4f1a\u4e00\u76f4\u5904\u4e8e\u5efa\u7acb\u548c\u5931\u6548\u7684\u9891\u7e41\u4ea4\u66ff\u4e2d\uff0c\u6700\u7ec8\u5bfc\u81f4\u67e5\u8be2\u6027\u80fd\u4e0d\u4f46\u6ca1\u6709\u63d0\u5347\u8fd8\u65e0\u5f62\u4e2d\u591a\u7ef4\u62a4\u4e86\u7f13\u5b58\u3002<\/pre>\n\n\n\n
    \u56e0\u6b64\u5b9e\u9645\u751f\u4ea7\u4e2d\uff0cServer\u5c42\u90fd\u4f1a\u8bbe\u7f6e query_cache_type=DEMAND\uff0c\u8fd9\u6837SQL\u9ed8\u8ba4\u4e0d\u4f1a\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\u3002\u5982\u679c\u6709\u7279\u6b8a\u9700\u6c42\u4e00\u5b9a\u8981\u4f7f\u7528\u67e5\u8be2\u7f13\u5b58\uff0c\u53ef\u4ee5\u663e\u793a\u6307\u5b9aSQL_CACHE\uff0c\u6bd4\u5982\u4e0b\u9762\u7684SQL\u8bed\u53e5\uff1a<\/p>\n\n\n\n
    mysql> select SQL_CACHE * from user where id = ?;<\/pre>\n\n\n\n
    \u5206\u6790\u5668<\/strong><\/p>\n\n\n\n
    \u5206\u6790\u5668\uff0c\u987e\u540d\u601d\u4e49\u5c31\u662fSQL\u8bed\u53e5\u8fdb\u884c\u5206\u6790\uff0c\u90a3\u4e48\uff0c\u5206\u6790\u5668\u5bf9SQL\u4f1a\u505a\u54ea\u4e9b\u5206\u6790\u5462\uff1f\u901a\u5e38\u6765\u8bf4\u6709\uff1a\u8bcd\u6cd5\u5206\u6790 \u548c \u8bed\u6cd5\u5206\u6790 \u4e24\u79cd\u3002<\/p>\n\n\n\n
    \u8bcd\u6cd5\u5206\u6790 \u662f\u5224\u65adSQL\u91cc\u9762\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u62c6\u89e3\uff0c\u8bc6\u522b\u5f53\u524dSQL\u662f\u4ec0\u4e48\u64cd\u4f5c\uff0cSQL\u91cc\u9762\u5305\u542b\u591a\u5c11\u5b57\u7b26\u4e32\uff0c\u7a7a\u683c\u7b49\u7b49\uff0c\u6bd4\u5982\uff1a\u4e0b\u9762\u7684sql\u8bed\u53e5\uff0c \u8bcd\u6cd5\u5206\u6790\u5668\u53ef\u4ee5\u6839\u636e select\u6765\u5224\u65ad\u5f53\u524dSQL\u662f\u67e5\u8be2\u64cd\u4f5c\uff0cid \u4e3a\u9700\u8981\u67e5\u8be2\u7684\u7ed3\u679c\uff0cwhere \u540e\u9762\u7684\u6761\u4ef6\u7b49\u7b49\uff1b<\/p>\n\n\n\n
    mysql> select id from user where name = 'zhangsan';<\/pre>\n\n\n\n
    \u8bed\u6cd5\u5206\u6790\u5c31\u662f\u68c0\u67e5SQL\u7684\u8bed\u6cd5\u662f\u5426\u6b63\u786e\uff0c\u6bd4\u5982\u4e0b\u9762\u7684SQL\u8bed\u53e5\uff0c\u628aupdate \u9519\u8bef\u7684\u5199\u6210\u4e86 updater\uff0c\u56e0\u6b64\u8bed\u6cd5\u5206\u6790\u5668\u5c31\u80fd\u8bc6\u522b\u8be5SQL\u6709\u8bed\u6cd5\u9519\u8bef\uff0c\u629b\u51fa\u8bed\u6cd5\u9519\u8bef\u76f8\u5173\u7684\u5f02\u5e38\u3002<\/p>\n\n\n\n
    mysql> updater user set update_time = now() where id = 10;<\/pre>\n\n\n\n
    \u4f18\u5316\u5668<\/strong><\/p>\n\n\n\n
    \u4f18\u5316\u5668\u76ee\u7684\u662f\u5bf9SQL\u8bed\u53e5\u8fdb\u884c\u4f18\u5316\u5904\u7406\u3002\u56e0\u4e3aSQL\u8bed\u53e5\u7684\u7f16\u5199\u8005\u80fd\u529b\u4e0d\u4e00\u6837\uff0c\u7f16\u5199\u51fa\u6765\u7684SQL\u8bed\u53e5\u6027\u80fd\u4e5f\u4e0d\u4e00\u6837\u3002Server\u5c42\u5982\u679c\u5b8c\u5168\u6309\u7167SQL\u8bed\u53e5\u987a\u5e8f\u6267\u884c\uff0c\u53ef\u80fd\u4f1a\u9020\u6210\u6027\u80fd\u95ee\u9898\uff0c \u6240\u4ee5\u9700\u8981\u4f18\u5316\uff0c\u5224\u65ad\u8bed\u53e5\u80fd\u5426\u4f7f\u7528\u7d22\u5f15\u7b49\u3002\u6bd4\u5982\u4e0b\u9762\u7684\u573a\u666f\uff1a<\/p>\n\n\n\n
    \u5047\u5982\uff1a5000\u4e07\u6570\u636e\u7684user\u8868\u4e2d\u539f\u5b58\u5728\u4e00\u4e2a\u7ec4\u5408\u7d22\u5f15\u662findex_name_age(name,age)\uff0c\u67d0\u5de5\u7a0b\u5e08\u5728\u6ca1\u6709\u67e5\u770b\u73b0\u6709\u7d22\u5f15\u7684\u60c5\u51b5\u4e0b\u7f16\u5199\u4e86\u5982\u4e0b\u7684SQL\u8bed\u53e5\uff1a<\/p>\n\n\n\n
    mysql> select * from user where age = 30 and name like '\u5f20%';<\/pre>\n\n\n\n
    \u5047\u5982 MySQL server\u5c42\u5b8c\u5168\u6309\u7167SQl\u8bed\u53e5\u7684\u987a\u5e8f\u6267\u884c\uff0c\u5219\u8be5SQL\u8bed\u53e5\u4e0d\u4f1a\u4f7f\u7528\u7d22\u5f15\uff0c\u5fc5\u5b9a\u4f1a\u6210\u4e3a\u6162sql\u3002\u800c\u6709\u4e86\u4f18\u5316\u5668\uff0c\u8bed\u53e5\u5c31\u53ef\u4ee5\u4f18\u5316\u6210\u4e0b\u9762\u7684\u5f62\u5f0f\uff0c\u5b8c\u5168\u4f7f\u7528\u4e0a\u73b0\u6709\u7684index_name_age(name,age)\u7d22\u5f15\u3002\u8fd9\u4e0b\u53ef\u4ee5\u662f\u4e0d\u662f\u770b\u51fa\u4e86\u4f18\u5316\u5668\u7684\u597d\u5904\u3002<\/p>\n\n\n\n
    mysql> select * from user where name like '\u5f20%' and age = 30;<\/pre>\n\n\n\n
    \u6267\u884c\u5668<\/strong><\/p>\n\n\n\n
    \u6267\u884c\u5668\u5c31\u662f\u8fd0\u884cSQL\u8bed\u53e5\u3002\u4e0d\u8fc7\uff0c\u6b64\u5904\u6267\u884c\u5668\u4e0d\u4f1a\u5728Server\u5c42\u76f4\u63a5\u6267\u884cSQL\u8bed\u53e5\uff0c\u800c\u662f\u6839\u636e\u6570\u636e\u8868\u4e2d\u6267\u884c\u5f15\u64ce\u7c7b\u578b\u8c03\u7528\u5bf9\u5e94\u7684\u5b58\u50a8\u5f15\u64ce\u63d0\u7684\u63a5\u53e3\u3002\u81f3\u4e8e\uff0c\u4e3a\u4ec0\u4e48\u6267\u884c\u5f15\u64ce\u4e0d\u4eb2\u81ea\u6267\u884cSQL\u8bed\u53e5\uff0c\u6211\u4eec\u4f1a\u540e\u671f\u8fdb\u884c\u5206\u4eab\u3002\u4e0d\u8fc7MySQL\u6b64\u5904\u7684\u8bbe\u8ba1\u7b26\u5408\u4e86SOLID\u8f6f\u4ef6\u8bbe\u8ba1\u539f\u5219 \u7684\u4f9d\u8d56\u5012\u7f6e\u539f\u5219\u3002<\/p>\n\n\n\n
    3. \u5b58\u50a8\u5f15\u64ce\u5c42<\/strong><\/p>\n\n\n\n
    \u5b58\u50a8\u5f15\u64ce\u5c42\u8d1f\u8d23\u6570\u636e\u7684\u5b58\u50a8\u548c\u63d0\u53d6\u3002\u91c7\u7528\u63d2\u4ef6\u5f0f\u7684\u67b6\u6784\u6a21\u5f0f\uff0c\u5e38\u89c1\u7684\u5b58\u50a8\u5f15\u64ce\u6709 InnoDB\u3001MyISAM\u3001Memory\u7b49\u3002\u5176\u4e2dMyISAM\u662fMySQL\u5b98\u65b9\u81ea\u5e26\u7684\u5f15\u64ce\uff0c \u4f46\u662f\u56e0\u4e3a\u8be5\u5f15\u64ce\u4e0d\u652f\u6301\u4e8b\u52a1\uff0c\u4f7f\u5f97\u80fd\u591f\u652f\u6301\u4e8b\u52a1\u7684InnoDB\u5b58\u50a8\u5f15\u64ce\u5f97\u4ee5\u5feb\u901f\u53d1\u5c55\uff0c\u5e76\u5728MySQL 5.5.5\u7248\u672c\u593a\u5ae1\u6210\u529f\uff0c\u6210\u4e3a\u4e86\u9ed8\u8ba4\u5b58\u50a8\u5f15\u64ce<\/p>\n\n\n\n
    \u56e0\u6b64\uff0c\u4f5c\u4e3a\u5f00\u53d1\uff0c\u5728\u8fdb\u5165\u65b0\u516c\u53f8\u540e\uff0c\u6700\u597d\u662f\u8981\u5f04\u6e05\u695a\u516c\u53f8\u7684MySQL\u7248\u672c\u4ee5\u53ca\u9ed8\u8ba4\u5f15\u64ce\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u5f88\u591a\u4e0d\u5fc5\u8981\u7684\u5751\u3002\u67e5\u770b\u6307\u4ee4\u5982\u4e0b\uff1a<\/p>\n\n\n\n
    # \u67e5\u770b\u6570\u636e\u5e93\u7248\u672c\nmysql> status;\n\n# \u67e5\u770b\u9ed8\u8ba4\u5f15\u64ce\nmysql> SHOW VARIABLES LIKE 'default_storage_engine%';<\/pre>\n\n\n\n
    \u603b\u7ed3<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u672c\u6587\uff0c\u6211\u4eec\u8be6\u7ec6\u5206\u6790\u4e86\u4e00\u6761 SQL\u67e5\u8be2\u8bed\u53e5\u5728 MySQL\u4e2d\u7684\u5168\u90e8\u6267\u884c\u6d41\u7a0b\u3002\u901a\u8fc7\u4e86\u89e3\u8fd9\u4e9b\u6d41\u7a0b\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u7684\u7406\u89e3 MySQL\u7684\u5185\u90e8\u7ed3\u6784\u548c\u539f\u7406\uff0c\u4ee5\u53ca vvvMySQL\u7684\u4f18\u5316\u539f\u7406\u3002\uff1a<\/p>\n\n\n\n
      \n
    • SQL\u6267\u884c\u4f1a\u7ecf\u5386\u5ba2\u6237\u7aef\u3001Server\u5c42\u3001\u5b58\u50a8\u5f15\u64ce\u5c42 3\u4e2a\u90e8\u5206\u3002<\/li>\n\n\n\n
    • Server\u5c42\u5305\u542b \u8fde\u63a5\u5668\u3001\u67e5\u8be2\u7f13\u5b58\u3001\u5206\u6790\u5668\u3001\u4f18\u5316\u5668\u3001\u6267\u884c\u5668\u7b49\u6838\u5fc3\u7ec4\u4ef6\u3002<\/li>\n\n\n\n
    • \u8fde\u63a5\u5668\u4e3b\u8981\u804c\u8d23\u662f\u7ba1\u7406\u8fde\u63a5\uff0c\u6743\u9650\u6821\u9a8c<\/li>\n\n\n\n
    • \u67e5\u8be2\u7f13\u5b58\u4e3b\u8981\u804c\u8d23\u662f\u4e3a\u67e5\u8be2\u63d0\u4f9b\u7f13\u5b58<\/li>\n\n\n\n
    • \u5206\u6790\u5668\u4e3b\u8981\u804c\u8d23\u662f\u8bcd\u6cd5\u5206\u6790\u548c\u8bed\u6cd5\u5206\u6790\uff0c\u76ee\u7684\u662f\u8bc6\u522bSQL\u662f\u505a\u4ec0\u4e48\uff0c\u6709\u6ca1\u6709\u8bed\u6cd5\u9519\u8bef\u3002<\/li>\n\n\n\n
    • \u4f18\u5316\u5668\u4e3b\u8981\u804c\u8d23\u662f\u5173\u6ce8SQL\u7684\u6027\u80fd\uff0c\u4f18\u5316SQL\u8bed\u53e5\u600e\u4e48\u66f4\u597d\u7684\u53bb\u6267\u884c\uff0c\u6bd4\u5982\uff1a\u5339\u914d\u7d22\u5f15\uff0c\u4f18\u5316join\u67e5\u8be2\u7684\u8fde\u63a5\u987a\u5e8f\u3002<\/li>\n\n\n\n
    • \u6267\u884c\u5668\u4e3b\u8981\u804c\u8d23\u662f\u8c03\u7528\u5b58\u50a8\u5f15\u64ce\u8c03\u7684\u63a5\u53e3\u548c\u8fd4\u56de\u7ed3\u679c\u3002<\/li>\n\n\n\n
    • \u5b58\u50a8\u5f15\u64ce\u4e3b\u8981\u804c\u8d23\u662f\u6570\u636e\u7684\u5b58\u50a8\u548c\u63d0\u53d6\uff0c\u7ed9\u6267\u884c\u5668\u63d0\u4f9b\u63a5\u53e3\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
      \u8f6c\u8f7d\uff1aMySQL \u662f\u5982\u4f55\u6267\u884c\u67e5\u8be2\u64cd\u4f5c\u7684\uff1f \u4f5c\u4e3a\u4e00\u540d Java\u540e\u7aef\u7a0b\u5e8f\u5458\uff0cMySQL\u5e94\u8be5\u662f\u63a5\u89e6\u6700\u591a\u7684\u6570\u636e\u5e93\u4e4b\u4e00\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16380"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16380"}],"version-history":[{"count":2,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16380\/revisions"}],"predecessor-version":[{"id":16387,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16380\/revisions\/16387"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}