\u5f53MySQL\u5355\u8868\u8bb0\u5f55\u6570\u8fc7\u5927\u65f6\uff0c\u6570\u636e\u5e93\u7684CRUD\u6027\u80fd\u4f1a\u660e\u663e\u4e0b\u964d\uff0c\u4e00\u4e9b\u5e38\u89c1\u7684\u4f18\u5316\u63aa\u65bd\u5982\u4e0b\uff1a
\n1\u3001\t\u9650\u5b9a\u6570\u636e\u7684\u8303\u56f4\uff1a\u52a1\u5fc5\u7981\u6b62\u4e0d\u5e26\u4efb\u4f55\u9650\u5236\u6570\u636e\u8303\u56f4\u6761\u4ef6\u7684\u67e5\u8be2\u8bed\u53e5\u3002\u6bd4\u5982\uff1a\u6211\u4eec\u5f53\u7528\u6237\u5728\u67e5\u8be2\u8ba2\u5355\u5386\u53f2\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u63a7\u5236\u5728\u4e00\u4e2a\u6708\u7684\u8303\u56f4\u5185\uff1b
\n2\u3001\t\u8bfb\/\u5199\u5206\u79bb\uff1a\u7ecf\u5178\u7684\u6570\u636e\u5e93\u62c6\u5206\u65b9\u6848\uff0c\u4e3b\u5e93\u8d1f\u8d23\u5199\uff0c\u4ece\u5e93\u8d1f\u8d23\u8bfb\uff1b
\n3\u3001\t\u7f13\u5b58\uff1a\u4f7f\u7528MySQL\u7684\u7f13\u5b58\uff0c\u53e6\u5916\u5bf9\u91cd\u91cf\u7ea7\u3001\u66f4\u65b0\u5c11\u7684\u6570\u636e\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5e94\u7528\u7ea7\u522b\u7684\u7f13\u5b58\uff1b
\n\u8fd8\u6709\u5c31\u662f\u901a\u8fc7\u5206\u5e93\u5206\u8868\u7684\u65b9\u5f0f\u8fdb\u884c\u4f18\u5316\uff0c\u4e3b\u8981\u6709\u5782\u76f4\u5206\u533a\u3001\u5782\u76f4\u5206\u8868\u548c\u6c34\u5e73\u5206\u533a\u3001\u6c34\u5e73\u5206\u8868
\n\u5782\u76f4\u5206\u533a
\n1\u3001\t\u6839\u636e\u6570\u636e\u5e93\u91cc\u9762\u6570\u636e\u8868\u7684\u76f8\u5173\u6027\u8fdb\u884c\u62c6\u5206\u3002\u4f8b\u5982\uff0c\u7528\u6237\u8868\u4e2d\u65e2\u6709\u7528\u6237\u7684\u767b\u5f55\u4fe1\u606f\u53c8\u6709\u7528\u6237\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u53ef\u4ee5\u5c06\u7528\u6237\u8868\u62c6\u5206\u6210\u4e24\u4e2a\u5355\u72ec\u7684\u8868\uff0c\u751a\u81f3\u653e\u5230\u5355\u72ec\u7684\u5e93\u505a\u5206\u5e93\u3002
\n2\u3001\t\u7b80\u5355\u6765\u8bf4\u5782\u76f4\u62c6\u5206\u662f\u6307\u6570\u636e\u8868\u5217\u7684\u62c6\u5206\uff0c\u628a\u4e00\u5f20\u5217\u6bd4\u8f83\u591a\u7684\u8868\u62c6\u5206\u4e3a\u591a\u5f20\u8868\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u8fd9\u6837\u6765\u8bf4\u5927\u5bb6\u5e94\u8be5\u5c31\u66f4\u5bb9\u6613\u7406\u89e3\u4e86\u3002
\n\u5782\u76f4\u62c6\u5206\u7684\u4f18\u70b9\uff1a
\n\u53ef\u4ee5\u4f7f\u5f97\u884c\u6570\u636e\u53d8\u5c0f\uff0c\u5728\u67e5\u8be2\u65f6\u51cf\u5c11\u8bfb\u53d6\u7684Block\u6570\uff0c\u51cf\u5c11I\/O\u6b21\u6570\u3002\u6b64\u5916\uff0c\u5782\u76f4\u5206\u533a\u53ef\u4ee5\u7b80\u5316\u8868\u7684\u7ed3\u6784\uff0c\u6613\u4e8e\u7ef4\u62a4\u3002
\n\u5782\u76f4\u62c6\u5206\u7684\u7f3a\u70b9\uff1a
\n\u4e3b\u952e\u4f1a\u51fa\u73b0\u5197\u4f59\uff0c\u9700\u8981\u7ba1\u7406\u5197\u4f59\u5217\uff0c\u5e76\u4f1a\u5f15\u8d77Join\u64cd\u4f5c\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u5e94\u7528\u5c42\u8fdb\u884cJoin\u6765\u89e3\u51b3\u3002\u6b64\u5916\uff0c\u5782\u76f4\u5206\u533a\u4f1a\u8ba9\u4e8b\u52a1\u53d8\u5f97\u66f4\u52a0\u590d\u6742\uff1b
\n\u5782\u76f4\u5206\u8868
\n\u628a\u4e3b\u952e\u548c\u4e00\u4e9b\u5217\u653e\u5728\u4e00\u4e2a\u8868\uff0c\u7136\u540e\u628a\u4e3b\u952e\u548c\u53e6\u5916\u7684\u5217\u653e\u5728\u53e6\u4e00\u4e2a\u8868\u4e2d
\n\u9002\u7528\u573a\u666f
\n1\u3001\t\u5982\u679c\u4e00\u4e2a\u8868\u4e2d\u67d0\u4e9b\u5217\u5e38\u7528\uff0c\u53e6\u5916\u4e00\u4e9b\u5217\u4e0d\u5e38\u7528
\n2\u3001\t\u53ef\u4ee5\u4f7f\u6570\u636e\u884c\u53d8\u5c0f\uff0c\u4e00\u4e2a\u6570\u636e\u9875\u80fd\u5b58\u50a8\u66f4\u591a\u6570\u636e\uff0c\u67e5\u8be2\u65f6\u51cf\u5c11I\/O\u6b21\u6570
\n\u7f3a\u70b9
\n1\u3001\u6709\u4e9b\u5206\u8868\u7684\u7b56\u7565\u57fa\u4e8e\u5e94\u7528\u5c42\u7684\u903b\u8f91\u7b97\u6cd5\uff0c\u4e00\u65e6\u903b\u8f91\u7b97\u6cd5\u6539\u53d8\uff0c\u6574\u4e2a\u5206\u8868\u903b\u8f91\u90fd\u4f1a\u6539\u53d8\uff0c\u6269\u5c55\u6027\u8f83\u5dee
\n2,\u5bf9\u4e8e\u5e94\u7528\u5c42\u6765\u8bf4\uff0c\u903b\u8f91\u7b97\u6cd5\u589e\u52a0\u5f00\u53d1\u6210\u672c
\n3\u3001\t\u7ba1\u7406\u5197\u4f59\u5217\uff0c\u67e5\u8be2\u6240\u6709\u6570\u636e\u9700\u8981join\u64cd\u4f5c
\n\u6c34\u5e73\u5206\u533a
\n1\u3001\t\u4fdd\u6301\u6570\u636e\u8868\u7ed3\u6784\u4e0d\u53d8\uff0c\u901a\u8fc7\u67d0\u79cd\u7b56\u7565\u5b58\u50a8\u6570\u636e\u5206\u7247\u3002\u8fd9\u6837\u6bcf\u4e00\u7247\u6570\u636e\u5206\u6563\u5230\u4e0d\u540c\u7684\u8868\u6216\u8005\u5e93\u4e2d\uff0c\u8fbe\u5230\u4e86\u5206\u5e03\u5f0f\u7684\u76ee\u7684\u3002\u6c34\u5e73\u62c6\u5206\u53ef\u4ee5\u652f\u6491\u975e\u5e38\u5927\u7684\u6570\u636e\u91cf\u3002
\n2\u3001\t\u6c34\u5e73\u62c6\u5206\u662f\u6307\u6570\u636e\u8868\u884c\u7684\u62c6\u5206\uff0c\u8868\u7684\u884c\u6570\u8d85\u8fc7200\u4e07\u884c\u65f6\uff0c\u5c31\u4f1a\u53d8\u6162\uff0c\u8fd9\u65f6\u53ef\u4ee5\u628a\u4e00\u5f20\u7684\u8868\u7684\u6570\u636e\u62c6\u6210\u591a\u5f20\u8868\u6765\u5b58\u653e\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u6211\u4eec\u53ef\u4ee5\u5c06\u7528\u6237\u4fe1\u606f\u8868\u62c6\u5206\u6210\u591a\u4e2a\u7528\u6237\u4fe1\u606f\u8868\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u907f\u514d\u5355\u4e00\u8868\u6570\u636e\u91cf\u8fc7\u5927\u5bf9\u6027\u80fd\u9020\u6210\u5f71\u54cd\u3002
\n1\u3001\t\u6c34\u5e73\u62c6\u5206\u53ef\u4ee5\u652f\u6301\u975e\u5e38\u5927\u7684\u6570\u636e\u91cf\u3002\u9700\u8981\u6ce8\u610f\u7684\u4e00\u70b9\u662f\uff1a\u5206\u8868\u4ec5\u4ec5\u662f\u89e3\u51b3\u4e86\u5355\u4e00\u8868\u6570\u636e\u8fc7\u5927\u7684\u95ee\u9898\uff0c\u4f46\u7531\u4e8e\u8868\u7684\u6570\u636e\u8fd8\u662f\u5728\u540c\u4e00\u53f0\u673a\u5668\u4e0a\uff0c\u5176\u5b9e\u5bf9\u4e8e\u63d0\u5347MySQL\u5e76\u53d1\u80fd\u529b\u6ca1\u6709\u4ec0\u4e48\u610f\u4e49,\u6240\u4ee5\u6c34\u5e73\u62c6\u5206\u6700\u597d\u5206\u5e93\u3002
\n2\u3001\t\u6c34\u5e73\u62c6\u5206\u80fd\u591f\u652f\u6301\u975e\u5e38\u5927\u7684\u6570\u636e\u91cf\u5b58\u50a8\uff0c\u5e94\u7528\u7aef\u6539\u9020\u4e5f\u5c11\uff0c\u4f46\u5206\u7247\u4e8b\u52a1\u96be\u4ee5\u89e3\u51b3\uff0c\u8de8\u754c\u70b9Join\u6027\u80fd\u8f83\u5dee\uff0c\u903b\u8f91\u590d\u6742\u3002
\n\u300aJava\u5de5\u7a0b\u5e08\u4fee\u70bc\u4e4b\u9053\u300b\u7684\u4f5c\u8005\u63a8\u8350\u5c3d\u91cf\u4e0d\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7247\uff0c\u56e0\u4e3a\u62c6\u5206\u4f1a\u5e26\u6765\u903b\u8f91\u3001\u90e8\u7f72\u3001\u8fd0\u7ef4\u7684\u5404\u79cd\u590d\u6742\u5ea6\uff0c\u4e00\u822c\u7684\u6570\u636e\u8868\u5728\u4f18\u5316\u5f97\u5f53\u7684\u60c5\u51b5\u4e0b\u652f\u6491\u5343\u4e07\u4ee5\u4e0b\u7684\u6570\u636e\u91cf\u662f\u6ca1\u6709\u592a\u5927\u95ee\u9898\u7684\u3002\u5982\u679c\u5b9e\u5728\u8981\u5206\u7247\uff0c\u5c3d\u91cf\u9009\u62e9\u5ba2\u6237\u7aef\u5206\u7247\u67b6\u6784\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u4e00\u6b21\u548c\u4e2d\u95f4\u4ef6\u7684\u7f51\u7edcI\/O\u3002
\n\u6c34\u5e73\u5206\u8868\uff1a
\n\u8868\u5f88\u5927\uff0c\u5206\u5272\u540e\u53ef\u4ee5\u964d\u4f4e\u5728\u67e5\u8be2\u65f6\u9700\u8981\u8bfb\u7684\u6570\u636e\u548c\u7d22\u5f15\u7684\u9875\u6570\uff0c\u540c\u65f6\u4e5f\u964d\u4f4e\u4e86\u7d22\u5f15\u7684\u5c42\u6570\uff0c\u63d0\u9ad8\u67e5\u8be2\u6b21\u6570
\n\u9002\u7528\u573a\u666f
\n1,\u8868\u4e2d\u7684\u6570\u636e\u672c\u8eab\u5c31\u6709\u72ec\u7acb\u6027\uff0c\u4f8b\u5982\u8868\u4e2d\u5206\u8868\u8bb0\u5f55\u5404\u4e2a\u5730\u533a\u7684\u6570\u636e\u6216\u8005\u4e0d\u540c\u65f6\u671f\u7684\u6570\u636e\uff0c\u7279\u522b\u662f\u6709\u4e9b\u6570\u636e\u5e38\u7528\uff0c\u6709\u4e9b\u4e0d\u5e38\u7528\u3002
\n2\u3001\t\u9700\u8981\u628a\u6570\u636e\u5b58\u653e\u5728\u591a\u4e2a\u4ecb\u8d28\u4e0a\u3002
\n\u6c34\u5e73\u5207\u5206\u7684\u7f3a\u70b9
\n1\u3001\t\u7ed9\u5e94\u7528\u589e\u52a0\u590d\u6742\u5ea6\uff0c\u901a\u5e38\u67e5\u8be2\u65f6\u9700\u8981\u591a\u4e2a\u8868\u540d\uff0c\u67e5\u8be2\u6240\u6709\u6570\u636e\u90fd\u9700UNION\u64cd\u4f5c
\n2\u3001\t\u5728\u8bb8\u591a\u6570\u636e\u5e93\u5e94\u7528\u4e2d\uff0c\u8fd9\u79cd\u590d\u6742\u5ea6\u4f1a\u8d85\u8fc7\u5b83\u5e26\u6765\u7684\u4f18\u70b9\uff0c\u67e5\u8be2\u65f6\u4f1a\u589e\u52a0\u8bfb\u4e00\u4e2a\u7d22\u5f15\u5c42\u7684\u78c1\u76d8\u6b21\u6570
\n\u6570\u636e\u5e93\u5206\u7247\u7684\u4e24\u79cd\u5e38\u89c1\u65b9\u6848\uff1a
\n\u5ba2\u6237\u7aef\u4ee3\u7406\uff1a
\n\u5206\u7247\u903b\u8f91\u5728\u5e94\u7528\u7aef\uff0c\u5c01\u88c5\u5728jar\u5305\u4e2d\uff0c\u901a\u8fc7\u4fee\u6539\u6216\u8005\u5c01\u88c5JDBC\u5c42\u6765\u5b9e\u73b0\u3002\u5f53\u5f53\u7f51\u7684 Sharding-JDBC\u3001\u963f\u91cc\u7684TDDL\u662f\u4e24\u79cd\u6bd4\u8f83\u5e38\u7528\u7684\u5b9e\u73b0\u3002
\n\u4e2d\u95f4\u4ef6\u4ee3\u7406\uff1a
\n\u5728\u5e94\u7528\u548c\u6570\u636e\u4e2d\u95f4\u52a0\u4e86\u4e00\u4e2a\u4ee3\u7406\u5c42\u3002\u5206\u7247\u903b\u8f91\u7edf\u4e00\u7ef4\u62a4\u5728\u4e2d\u95f4\u4ef6\u670d\u52a1\u4e2d\u3002\u6211\u4eec\u73b0\u5728\u8c08\u7684Mycat\u3001360\u7684Atlas\u3001\u7f51\u6613\u7684DDB\u7b49\u7b49\u90fd\u662f\u8fd9\u79cd\u67b6\u6784\u7684\u5b9e\u73b0\u3002
\n\u5206\u5e93\u5206\u8868\u540e\u9762\u4e34\u7684\u95ee\u9898
\n\u4e8b\u52a1\u652f\u6301
\n\u5206\u5e93\u5206\u8868\u540e\uff0c\u5c31\u6210\u4e86\u5206\u5e03\u5f0f\u4e8b\u52a1\u4e86\u3002\u5982\u679c\u4f9d\u8d56\u6570\u636e\u5e93\u672c\u8eab\u7684\u5206\u5e03\u5f0f\u4e8b\u52a1\u7ba1\u7406\u529f\u80fd\u53bb\u6267\u884c\u4e8b\u52a1\uff0c\u5c06\u4ed8\u51fa\u9ad8\u6602\u7684\u6027\u80fd\u4ee3\u4ef7\uff1b\u5982\u679c\u7531\u5e94\u7528\u7a0b\u5e8f\u53bb\u534f\u52a9\u63a7\u5236\uff0c\u5f62\u54b8\u7a0b\u5e8f\u903b\u8f91\u4e0a\u7684\u4e8b\u52a1\uff0c\u53c8\u4f1a\u9020\u6210\u7f16\u7a0b\u65b9\u9762\u7684\u8d1f\u62c5\u3002
\n\u8de8\u5e93join
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