{"id":10008138,"date":"2023-08-23T00:59:30","date_gmt":"2023-08-22T16:59:30","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008138"},"modified":"2023-08-23T00:59:30","modified_gmt":"2023-08-22T16:59:30","slug":"mysql-%e5%a4%84%e7%90%86%e5%a4%a7%e6%95%b0%e6%8d%ae%e8%a1%a8%e7%9a%84-3-%e7%a7%8d%e6%96%b9%e6%a1%88%ef%bc%8c%e5%86%99%e7%9a%84%e5%a4%aa%e5%a5%bd%e4%ba%86%ef%bc%8c%e5%bb%ba%e8%ae%ae%e6%94%b6%e8%97%8f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008138","title":{"rendered":"MySQL \u5904\u7406\u5927\u6570\u636e\u8868\u7684 3 \u79cd\u65b9\u6848\uff0c\u5199\u7684\u592a\u597d\u4e86\uff0c\u5efa\u8bae\u6536\u85cf\uff01\uff01"},"content":{"rendered":"<p>\u4f5c\u8005\uff1a\u9a6c\u4f69 \/<br \/>\u94fe\u63a5\uff1a<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=ym843gnx%2BlYXn%2Fp50sBZMA%3D%3D.G3Qk4AUjdPYZlpNgCAJm7I7E8mGKf6d3JE5Nhdn4E8ilxQRIdxsqpShyvSJuu4DX\" rel=\"noopener noreferrer\">https:\/\/juejin.cn\/post\/7146016771936354312<\/a><\/p>\n<h2>\u573a\u666f<\/h2>\n<p>\u5f53\u6211\u4eec\u4e1a\u52a1\u6570\u636e\u5e93\u8868\u4e2d\u7684\u6570\u636e\u8d8a\u6765\u8d8a\u591a\uff0c\u5982\u679c\u4f60\u4e5f\u548c\u6211\u9047\u5230\u4e86\u4ee5\u4e0b\u7c7b\u4f3c\u573a\u666f\uff0c\u90a3\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898<\/p>\n<ul>\n<li>\u6570\u636e\u7684\u63d2\u5165,\u67e5\u8be2\u65f6\u957f\u8f83\u957f<\/li>\n<li>\u540e\u7eed\u4e1a\u52a1\u9700\u6c42\u7684\u6269\u5c55 \u5728\u8868\u4e2d\u65b0\u589e\u5b57\u6bb5 \u5f71\u54cd\u8f83\u5927<\/li>\n<li>\u8868\u4e2d\u7684\u6570\u636e\u5e76\u4e0d\u662f\u6240\u6709\u7684\u90fd\u4e3a\u6709\u6548\u6570\u636e \u9700\u6c42\u53ea\u67e5\u8be2\u65f6\u95f4\u533a\u95f4\u5185\u7684<\/li>\n<\/ul>\n<h2>\u8bc4\u4f30\u8868\u6570\u636e\u4f53\u91cf<\/h2>\n<p>\u6211\u4eec\u53ef\u4ee5\u4ece\u8868\u5bb9\u91cf\/\u78c1\u76d8\u7a7a\u95f4\/\u5b9e\u4f8b\u5bb9\u91cf\u4e09\u65b9\u9762\u8bc4\u4f30\u6570\u636e\u4f53\u91cf\uff0c\u63a5\u4e0b\u6765\u8ba9\u6211\u4eec\u5206\u522b\u5c55\u5f00\u6765\u770b\u770b\u3002<\/p>\n<p>\u63a8\u8350\u4e00\u4e2a\u5f00\u6e90\u514d\u8d39\u7684 Spring Boot \u6700\u5168\u6559\u7a0b\uff1a<\/p>\n<blockquote><p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=dogYo4zogAaNP6rOA%2BfZSQ%3D%3D.btif5JQfkXikxdOeVPF2s3q9GOb4LFzp85KQRg6zW6uHk0HQ8iledG11I7JZ238AU4SeESTpM9zTUvIEgKfWGA%3D%3D\" rel=\"noopener noreferrer\">https:\/\/github.com\/javastacks\/spring-boot-best-practice<\/a><\/p><\/blockquote>\n<h3>\u8868\u5bb9\u91cf\uff1a<\/h3>\n<p>\u8868\u5bb9\u91cf\u4e3b\u8981\u4ece\u8868\u7684\u8bb0\u5f55\u6570\u3001\u5e73\u5747\u957f\u5ea6\u3001\u589e\u957f\u91cf\u3001\u8bfb\u5199\u91cf\u3001\u603b\u5927\u5c0f\u91cf\u8fdb\u884c\u8bc4\u4f30\u3002\u4e00\u822c\u5bf9\u4e8eOLTP\u7684\u8868\uff0c\u5efa\u8bae\u5355\u8868\u4e0d\u8981\u8d85\u8fc72000W\u884c\u6570\u636e\u91cf\uff0c\u603b\u5927\u5c0f15G\u4ee5\u5185\u3002\u8bbf\u95ee\u91cf\uff1a\u5355\u8868\u8bfb\u5199\u91cf\u57281600\/s\u4ee5\u5185<\/p>\n<p>\u67e5\u8be2\u884c\u6570\u636e\u7684\u65b9\u5f0f\uff1a \u6211\u4eec\u4e00\u822c\u67e5\u8be2\u8868\u6570\u636e\u6709\u591a\u5c11\u6570\u636e\u65f6\u7528\u5230\u7684\u7ecf\u5178sql\u8bed\u53e5\u5982\u4e0b\uff1a<\/p>\n<pre><code>select count(*) from table;\nselect count(1) from table;<\/code><\/pre>\n<p>\u4f46\u662f\u5f53\u6570\u636e\u91cf\u8fc7\u5927\u7684\u65f6\u5019\uff0c\u8fd9\u6837\u7684\u67e5\u8be2\u5c31\u53ef\u80fd\u4f1a\u8d85\u65f6\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u6362\u4e00\u79cd\u67e5\u8be2\u65b9\u5f0f\uff1a<\/p>\n<pre><code>use \u5e93\u540d;\nshow table status like '\u8868\u540d' ; \nshow table status like '\u8868\u540d'\/G ;<\/code><\/pre>\n<p>\u4e0a\u8ff0\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u67e5\u8be2\u8868\u7684\u6570\u636e\uff0c\u8fd8\u53ef\u4ee5\u8f93\u51fa\u8868\u7684\u8be6\u7ec6\u4fe1\u606f , \u52a0 \/G \u53ef\u4ee5\u683c\u5f0f\u5316\u8f93\u51fa\u3002\u5305\u62ec\u8868\u540d \u5b58\u50a8\u5f15\u64ce \u7248\u672c \u884c\u6570 \u6bcf\u884c\u7684\u5b57\u8282\u6570\u7b49\u7b49\uff0c\u5927\u5bb6\u53ef\u4ee5\u81ea\u884c\u8bd5\u4e00\u4e0b\u54c8<\/p>\n<h3>\u78c1\u76d8\u7a7a\u95f4<\/h3>\n<p>\u67e5\u770b\u6307\u5b9a\u6570\u636e\u5e93\u5bb9\u91cf\u5927\u5c0f<\/p>\n<pre><code class=\"vbnet\">select\ntable_schema as '\u6570\u636e\u5e93',\ntable_name as '\u8868\u540d',\ntable_rows as '\u8bb0\u5f55\u6570',\ntruncate(data_length\/1024\/1024, 2) as '\u6570\u636e\u5bb9\u91cf(MB)',\ntruncate(index_length\/1024\/1024, 2) as '\u7d22\u5f15\u5bb9\u91cf(MB)'\nfrom information_schema.tables\norder by data_length desc, index_length desc;<\/code><\/pre>\n<p>\u67e5\u8be2\u5355\u4e2a\u5e93\u4e2d\u6240\u6709\u8868\u78c1\u76d8\u5360\u7528\u5927\u5c0f<\/p>\n<pre><code class=\"vbnet\">select\ntable_schema as '\u6570\u636e\u5e93',\ntable_name as '\u8868\u540d',\ntable_rows as '\u8bb0\u5f55\u6570',\ntruncate(data_length\/1024\/1024, 2) as '\u6570\u636e\u5bb9\u91cf(MB)',\ntruncate(index_length\/1024\/1024, 2) as '\u7d22\u5f15\u5bb9\u91cf(MB)'\nfrom information_schema.tables\nwhere table_schema='mysql'\norder by data_length desc, index_length desc;<\/code><\/pre>\n<p>\u67e5\u8be2\u51fa\u7684\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"65\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJq\" alt=\"\" title=\"\"><\/p>\n<p>\u5efa\u8bae\u6570\u636e\u91cf\u5360\u78c1\u76d8\u4f7f\u7528\u7387\u768470%\u4ee5\u5185\u3002\u540c\u65f6\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u6570\u636e\u589e\u957f\u8f83\u5feb\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5927\u7684\u6162\u76d8\u8fdb\u884c\u6570\u636e\u5f52\u6863\uff08\u5f52\u6863\u53ef\u4ee5\u53c2\u8003\u65b9\u6848\u4e09\uff09<\/p>\n<h3>\u5b9e\u4f8b\u5bb9\u91cf<\/h3>\n<p>MySQL\u662f\u57fa\u4e8e\u7ebf\u7a0b\u7684\u670d\u52a1\u6a21\u578b\uff0c\u56e0\u6b64\u5728\u4e00\u4e9b\u5e76\u53d1\u8f83\u9ad8\u7684\u573a\u666f\u4e0b\uff0c\u5355\u5b9e\u4f8b\u5e76\u4e0d\u80fd\u5145\u5206\u5229\u7528\u670d\u52a1\u5668\u7684CPU\u8d44\u6e90\uff0c\u541e\u5410\u91cf\u53cd\u800c\u4f1a\u5361\u5728mysql\u5c42\uff0c\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u8003\u8651\u81ea\u5df1\u7684\u5b9e\u4f8b\u6a21\u5f0f<\/p>\n<h2>\u51fa\u73b0\u95ee\u9898\u7684\u539f\u56e0<\/h2>\n<p>\u4e0a\u9762\u6211\u4eec\u5df2\u7ecf\u67e5\u5230\u6211\u4eec\u6570\u636e\u8868\u7684\u4f53\u91cf\u4e86 \u90a3\u4e48\u4e3a\u4ec0\u4e48\u5355\u8868\u6570\u636e\u91cf\u8d8a\u5927 \u4e1a\u52a1\u7684\u6267\u884c\u6548\u7387\u5c31\u8d8a\u6162 \u6839\u672c\u539f\u56e0\u662f\u4ec0\u4e48\u5462\uff1f<\/p>\n<p>\u4e00\u4e2a\u8868\u7684\u6570\u636e\u91cf\u8fbe\u5230\u597d\u51e0\u5343\u4e07\u6216\u8005\u4e0a\u4ebf\u65f6\uff0c\u52a0\u7d22\u5f15\u7684\u6548\u679c\u6ca1\u90a3\u4e48\u660e\u663e\u5566\u3002\u6027\u80fd\u4e4b\u6240\u4ee5\u4f1a\u53d8\u5dee\uff0c\u662f\u56e0\u4e3a\u7ef4\u62a4\u7d22\u5f15\u7684<code>B+<\/code>\u6811\u7ed3\u6784\u5c42\u7ea7\u53d8\u5f97\u66f4\u9ad8\u4e86\uff0c\u67e5\u8be2\u4e00\u6761\u6570\u636e\u65f6\uff0c\u9700\u8981\u7ecf\u5386\u7684\u78c1\u76d8IO\u53d8\u591a\uff0c\u56e0\u6b64\u67e5\u8be2\u6027\u80fd\u53d8\u6162\u3002<\/p>\n<p><strong>\u5927\u5bb6\u662f\u5426\u8fd8\u8bb0\u5f97\uff0c\u4e00\u4e2aB+\u6811\u5927\u6982\u53ef\u4ee5\u5b58\u653e\u591a\u5c11\u6570\u636e\u91cf\u5462\uff1f<\/strong><\/p>\n<p>InnoDB\u5b58\u50a8\u5f15\u64ce\u6700\u5c0f\u50a8\u5b58\u5355\u5143\u662f\u9875\uff0c\u4e00\u9875\u5927\u5c0f\u5c31\u662f<code>16k<\/code>\u3002<\/p>\n<p>B+\u6811\u53f6\u5b50\u5b58\u7684\u662f\u6570\u636e\uff0c\u5185\u90e8\u8282\u70b9\u5b58\u7684\u662f\u952e\u503c+\u6307\u9488\u3002\u7d22\u5f15\u7ec4\u7ec7\u8868\u901a\u8fc7\u975e\u53f6\u5b50\u8282\u70b9\u7684\u4e8c\u5206\u67e5\u627e\u6cd5\u4ee5\u53ca\u6307\u9488\u786e\u5b9a\u6570\u636e\u5728\u54ea\u4e2a\u9875\u4e2d\uff0c\u8fdb\u800c\u518d\u53bb\u6570\u636e\u9875\u4e2d\u627e\u5230\u9700\u8981\u7684\u6570\u636e\uff1b<\/p>\n<p><img decoding=\"async\" width=\"658\" height=\"167\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJr\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5047\u8bbeB+\u6811\u7684\u9ad8\u5ea6\u4e3a<code>2<\/code>\u7684\u8bdd\uff0c\u5373\u6709\u4e00\u4e2a\u6839\u7ed3\u70b9\u548c\u82e5\u5e72\u4e2a\u53f6\u5b50\u7ed3\u70b9\u3002\u8fd9\u68f5B+\u6811\u7684\u5b58\u653e\u603b\u8bb0\u5f55\u6570\u4e3a=\u6839\u7ed3\u70b9\u6307\u9488\u6570*\u5355\u4e2a\u53f6\u5b50\u8282\u70b9\u8bb0\u5f55\u884c\u6570\u3002<\/p>\n<ul>\n<li>\u5982\u679c\u4e00\u884c\u8bb0\u5f55\u7684\u6570\u636e\u5927\u5c0f\u4e3a1k\uff0c\u90a3\u4e48\u5355\u4e2a\u53f6\u5b50\u8282\u70b9\u53ef\u4ee5\u5b58\u7684\u8bb0\u5f55\u6570 =16k\/1k =16.<\/li>\n<li>\u975e\u53f6\u5b50\u8282\u70b9\u5185\u5b58\u653e\u591a\u5c11\u6307\u9488\u5462\uff1f\u6211\u4eec\u5047\u8bbe\u4e3b\u952eID\u4e3a<strong>bigint\u7c7b\u578b\uff0c\u957f\u5ea6\u4e3a8\u5b57\u8282<\/strong>(<strong>\u9762\u8bd5\u5b98\u95ee\u4f60int\u7c7b\u578b\uff0c\u4e00\u4e2aint\u5c31\u662f32\u4f4d\uff0c4\u5b57\u8282<\/strong>)\uff0c\u800c\u6307\u9488\u5927\u5c0f\u5728InnoDB\u6e90\u7801\u4e2d\u8bbe\u7f6e\u4e3a6\u5b57\u8282\uff0c\u6240\u4ee5\u5c31\u662f8+6=14\u5b57\u8282\uff0c16k\/14B =16*1024B\/14B = 1170<\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0c\u4e00\u68f5\u9ad8\u5ea6\u4e3a2\u7684B+\u6811\uff0c\u80fd\u5b58\u653e<code>1170 * 16=18720<\/code>\u6761\u8fd9\u6837\u7684\u6570\u636e\u8bb0\u5f55\u3002\u540c\u7406\u4e00\u68f5\u9ad8\u5ea6\u4e3a3\u7684B+\u6811\uff0c\u80fd\u5b58\u653e<code>1170 *1170 *16 =21902400<\/code>\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u53ef\u4ee5\u5b58\u653e\u4e24\u5343\u4e07\u5de6\u53f3\u7684\u8bb0\u5f55\u3002B+\u6811\u9ad8\u5ea6\u4e00\u822c\u4e3a1-3\u5c42\uff0c\u5df2\u7ecf\u6ee1\u8db3\u5343\u4e07\u7ea7\u522b\u7684\u6570\u636e\u5b58\u50a8\u3002<\/p>\n<p>\u5982\u679cB+\u6811\u60f3\u5b58\u50a8\u66f4\u591a\u7684\u6570\u636e\uff0c\u90a3\u6811\u7ed3\u6784\u5c42\u7ea7\u5c31\u4f1a\u66f4\u9ad8\uff0c\u67e5\u8be2\u4e00\u6761\u6570\u636e\u65f6\uff0c\u9700\u8981\u7ecf\u5386\u7684\u78c1\u76d8IO\u53d8\u591a\uff0c\u56e0\u6b64\u67e5\u8be2\u6027\u80fd\u53d8\u6162\u3002<\/p>\n<h2>\u5982\u4f55\u89e3\u51b3\u5355\u8868\u6570\u636e\u91cf\u592a\u5927\uff0c\u67e5\u8be2\u53d8\u6162\u7684\u95ee\u9898<\/h2>\n<p>\u77e5\u9053\u4e86\u6839\u672c\u539f\u56e0\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u9700\u8981\u8003\u8651\u5982\u4f55\u4f18\u5316\u6570\u636e\u5e93\u6765\u89e3\u51b3\u95ee\u9898\u4e86<\/p>\n<p>\u8fd9\u91cc\u63d0\u4f9b\u4e86\u4e09\u79cd\u89e3\u51b3\u65b9\u6848\uff0c\u5305\u62ec\u6570\u636e\u8868\u5206\u533a\uff0c\u5206\u5e93\u5206\u8868\uff0c\u51b7\u70ed\u6570\u636e\u5f52\u6863 \u4e86\u89e3\u5b8c\u8fd9\u4e9b\u65b9\u6848\u4e4b\u540e\u5927\u5bb6\u53ef\u4ee5\u9009\u53d6\u9002\u5408\u81ea\u5df1\u4e1a\u52a1\u7684\u65b9\u6848<\/p>\n<h3>\u65b9\u6848\u4e00\uff1a\u6570\u636e\u8868\u5206\u533a<\/h3>\n<p>\u4e3a\u4ec0\u4e48\u8981\u5206\u533a\uff1a\u8868\u5206\u533a\u53ef\u4ee5\u5728\u533a\u95f4\u5185\u67e5\u8be2\u5bf9\u5e94\u7684\u6570\u636e\uff0c\u964d\u4f4e\u67e5\u8be2\u8303\u56f4 \u5e76\u4e14\u7d22\u5f15\u5206\u533a \u4e5f\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u547d\u4e2d\u7387\uff0c\u63d0\u5347\u67e5\u8be2\u6548\u7387<\/p>\n<p>\u5206\u533a\u662f\u6307\u5c06\u4e00\u4e2a\u8868\u7684\u6570\u636e\u6309\u7167\u6761\u4ef6\u5206\u5e03\u5230\u4e0d\u540c\u7684\u6587\u4ef6\u4e0a\u9762\uff0c\u672a\u5206\u533a\u524d\u90fd\u662f\u5b58\u653e\u5728\u4e00\u4e2a\u6587\u4ef6\u4e0a\u9762\u7684\uff0c\u4f46\u662f\u5b83\u8fd8\u662f\u6307\u5411\u7684\u540c\u4e00\u5f20\u8868\uff0c\u53ea\u662f\u628a\u6570\u636e\u5206\u6563\u5230\u4e86\u4e0d\u540c\u6587\u4ef6\u800c\u5df2\u3002<\/p>\n<p>\u6211\u4eec\u9996\u5148\u770b\u4e00\u4e0b\u5206\u533a\u6709\u4ec0\u4e48\u4f18\u7f3a\u70b9\uff1a<\/p>\n<p><strong>\u8868\u5206\u533a\u6709\u4ec0\u4e48\u597d\u5904\uff1f<\/strong><\/p>\n<ol>\n<li>\u4e0e\u5355\u4e2a\u78c1\u76d8\u6216\u6587\u4ef6\u7cfb\u7edf\u5206\u533a\u76f8\u6bd4\uff0c\u53ef\u4ee5\u5b58\u50a8\u66f4\u591a\u7684\u6570\u636e\u3002<\/li>\n<li>\u5bf9\u4e8e\u90a3\u4e9b\u5df2\u7ecf\u5931\u53bb\u4fdd\u5b58\u610f\u4e49\u7684\u6570\u636e\uff0c\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7\u5220\u9664\u4e0e\u90a3\u4e9b\u6570\u636e\u6709\u5173\u7684\u5206\u533a\uff0c\u5f88\u5bb9\u6613\u5730\u5220\u9664\u90a3\u4e9b\u6570\u636e\u3002\u76f8\u53cd\u5730\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6dfb\u52a0\u65b0\u6570\u636e\u7684\u8fc7\u7a0b\u53c8\u53ef\u4ee5\u901a\u8fc7\u4e3a\u90a3\u4e9b\u65b0\u6570\u636e\u4e13\u95e8\u589e\u52a0\u4e00\u4e2a\u65b0\u7684\u5206\u533a\uff0c\u6765\u5f88\u65b9\u4fbf\u5730\u5b9e\u73b0\u3002<\/li>\n<li>\u4e00\u4e9b\u67e5\u8be2\u53ef\u4ee5\u5f97\u5230\u6781\u5927\u7684\u4f18\u5316\uff0c\u8fd9\u4e3b\u8981\u662f\u501f\u52a9\u4e8e\u6ee1\u8db3\u4e00\u4e2a\u7ed9\u5b9aWHERE\u8bed\u53e5\u7684\u6570\u636e\u53ef\u4ee5\u53ea\u4fdd\u5b58\u5728\u4e00\u4e2a\u6216\u591a\u4e2a\u5206\u533a\u5185\uff0c\u8fd9\u6837\u5728\u67e5\u627e\u65f6\u5c31\u4e0d\u7528\u67e5\u627e\u5176\u4ed6\u5269\u4f59\u7684\u5206\u533a\u3002\u56e0\u4e3a\u5206\u533a\u53ef\u4ee5\u5728\u521b\u5efa\u4e86\u5206\u533a\u8868\u540e\u8fdb\u884c\u4fee\u6539\uff0c\u6240\u4ee5\u5728\u7b2c\u4e00\u6b21\u914d\u7f6e\u5206\u533a\u65b9\u6848\u65f6\u8fd8\u4e0d\u66fe\u8fd9\u4e48\u505a\u65f6\uff0c\u53ef\u4ee5\u91cd\u65b0\u7ec4\u7ec7\u6570\u636e\uff0c\u6765\u63d0\u9ad8\u90a3\u4e9b\u5e38\u7528\u67e5\u8be2\u7684\u6548\u7387\u3002<\/li>\n<li>\u6d89\u53ca\u5230\u4f8b\u5982SUM()\u548cCOUNT()\u8fd9\u6837\u805a\u5408\u51fd\u6570\u7684\u67e5\u8be2\uff0c\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u8fdb\u884c\u5e76\u884c\u5904\u7406\u3002\u8fd9\u79cd\u67e5\u8be2\u7684\u4e00\u4e2a\u7b80\u5355\u4f8b\u5b50\u5982 \u201cSELECT salesperson_id, COUNT (orders) as order_total FROM sales GROUP BY salesperson_id\uff1b\u201d\u3002\u901a\u8fc7\u201c\u5e76\u884c\u201d\uff0c\u8fd9\u610f\u5473\u7740\u8be5\u67e5\u8be2\u53ef\u4ee5\u5728\u6bcf\u4e2a\u5206\u533a\u4e0a\u540c\u65f6\u8fdb\u884c\uff0c\u6700\u7ec8\u7ed3\u679c\u53ea\u9700\u901a\u8fc7\u603b\u8ba1\u6240\u6709\u5206\u533a\u5f97\u5230\u7684\u7ed3\u679c\u3002<\/li>\n<li>\u901a\u8fc7\u8de8\u591a\u4e2a\u78c1\u76d8\u6765\u5206\u6563\u6570\u636e\u67e5\u8be2\uff0c\u6765\u83b7\u5f97\u66f4\u5927\u7684\u67e5\u8be2\u541e\u5410\u91cf\u3002<\/li>\n<\/ol>\n<p><strong>\u8868\u5206\u533a\u7684\u9650\u5236\u56e0\u7d20<\/strong><\/p>\n<ol>\n<li>\u4e00\u4e2a\u8868\u6700\u591a\u53ea\u80fd\u67091024\u4e2a\u5206\u533a\u3002<\/li>\n<li>MySQL5.1\u4e2d\uff0c\u5206\u533a\u8868\u8fbe\u5f0f\u5fc5\u987b\u662f\u6574\u6570\uff0c\u6216\u8005\u8fd4\u56de\u6574\u6570\u7684\u8868\u8fbe\u5f0f\u3002\u5728MySQL5.5\u4e2d\u63d0\u4f9b\u4e86\u975e\u6574\u6570\u8868\u8fbe\u5f0f\u5206\u533a\u7684\u652f\u6301\u3002<\/li>\n<li>\u5982\u679c\u5206\u533a\u5b57\u6bb5\u4e2d\u6709\u4e3b\u952e\u6216\u8005\u552f\u4e00\u7d22\u5f15\u7684\u5217\uff0c\u90a3\u4e48\u591a\u6709\u4e3b\u952e\u5217\u548c\u552f\u4e00\u7d22\u5f15\u5217\u90fd\u5fc5\u987b\u5305\u542b\u8fdb\u6765\u3002\u5373\uff1a\u5206\u533a\u5b57\u6bb5\u8981\u4e48\u4e0d\u5305\u542b\u4e3b\u952e\u6216\u8005\u7d22\u5f15\u5217\uff0c\u8981\u4e48\u5305\u542b\u5168\u90e8\u4e3b\u952e\u548c\u7d22\u5f15\u5217\u3002<\/li>\n<li>\u5206\u533a\u8868\u4e2d\u65e0\u6cd5\u4f7f\u7528\u5916\u952e\u7ea6\u675f\u3002<\/li>\n<li>MySQL\u7684\u5206\u533a\u9002\u7528\u4e8e\u4e00\u4e2a\u8868\u7684\u6240\u6709\u6570\u636e\u548c\u7d22\u5f15\uff0c\u4e0d\u80fd\u53ea\u5bf9\u8868\u6570\u636e\u5206\u533a\u800c\u4e0d\u5bf9\u7d22\u5f15\u5206\u533a\uff0c\u4e5f\u4e0d\u80fd\u53ea\u5bf9\u7d22\u5f15\u5206\u533a\u800c\u4e0d\u5bf9\u8868\u5206\u533a\uff0c\u4e5f\u4e0d\u80fd\u53ea\u5bf9\u8868\u7684\u4e00\u90e8\u5206\u6570\u636e\u5206\u533a\u3002<\/li>\n<\/ol>\n<p>\u5728\u8fdb\u884c\u5206\u533a\u4e4b\u524d\u53ef\u4ee5\u7528\u5982\u4e0b\u65b9\u6cd5 \u770b\u4e0b\u6570\u636e\u5e93\u8868\u662f\u5426\u652f\u6301\u5206\u533a\u54c8<\/p>\n<pre><code class=\"sql\">mysql&gt; show variables like '%partition%';\n+-------------------+-------+\n| Variable_name     | Value |\n+-------------------+-------+\n| have_partitioning | YES   |\n+-------------------+-------+\n1 row in set (0.00 sec)<\/code><\/pre>\n<h3>\u65b9\u6848\u4e8c\uff1a\u6570\u636e\u5e93\u5206\u8868<\/h3>\n<p>\u4e3a\u4ec0\u4e48\u8981\u5206\u8868\uff1a\u5206\u8868\u540e\uff0c\u663e\u800c\u6613\u89c1\uff0c\u5355\u8868\u6570\u636e\u91cf\u964d\u4f4e\uff0c\u6811\u7684\u9ad8\u5ea6\u53d8\u4f4e\uff0c\u67e5\u8be2\u7ecf\u5386\u7684\u78c1\u76d8io\u53d8\u5c11\uff0c\u5219\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387<\/p>\n<p>mysql \u5206\u8868\u5206\u4e3a\u4e24\u79cd \u6c34\u5e73\u5206\u8868\u548c\u5782\u76f4\u5206\u8868<\/p>\n<p>\u5206\u5e93\u5206\u8868\u5c31\u662f\u4e3a\u4e86\u89e3\u51b3\u7531\u4e8e\u6570\u636e\u91cf\u8fc7\u5927\u800c\u5bfc\u81f4\u6570\u636e\u5e93\u6027\u80fd\u964d\u4f4e\u7684\u95ee\u9898\uff0c\u5c06\u539f\u6765\u72ec\u7acb\u7684\u6570\u636e\u5e93\u62c6\u5206\u6210\u82e5\u5e72\u6570\u636e\u5e93\u7ec4\u6210 \uff0c\u5c06\u6570\u636e\u5927\u8868\u62c6\u5206\u6210\u82e5\u5e72\u6570\u636e\u8868\u7ec4\u6210\uff0c\u4f7f\u5f97\u5355\u4e00\u6570\u636e\u5e93\u3001\u5355\u4e00\u6570\u636e\u8868\u7684\u6570\u636e\u91cf\u53d8\u5c0f\uff0c\u4ece\u800c\u8fbe\u5230\u63d0\u5347\u6570\u636e\u5e93\u6027\u80fd\u7684\u76ee\u7684\u3002<\/p>\n<h4>\u6c34\u5e73\u5206\u8868<\/h4>\n<p>\u5b9a\u4e49\uff1a\u6570\u636e\u8868\u884c\u7684\u62c6\u5206\uff0c\u901a\u4fd7\u70b9\u5c31\u662f\u628a\u6570\u636e\u6309\u7167\u67d0\u4e9b\u89c4\u5219\u62c6\u5206\u6210\u591a\u5f20\u8868\u6216\u8005\u591a\u4e2a\u5e93\u6765\u5b58\u653e\u3002\u5206\u4e3a\u5e93\u5185\u5206\u8868\u548c\u5206\u5e93\u3002 \u6bd4\u5982\u4e00\u4e2a\u8868\u67094000\u4e07\u6570\u636e\uff0c\u67e5\u8be2\u5f88\u6162\uff0c\u53ef\u4ee5\u5206\u5230\u56db\u4e2a\u8868\uff0c\u6bcf\u4e2a\u8868\u67091000\u4e07\u6570\u636e<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"358\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJs\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h4>\u5782\u76f4\u5206\u8868<\/h4>\n<p>\u5b9a\u4e49\uff1a\u5217\u7684\u62c6\u5206\uff0c\u6839\u636e\u8868\u4e4b\u95f4\u7684\u76f8\u5173\u6027\u8fdb\u884c\u62c6\u5206\u3002\u5e38\u89c1\u7684\u5c31\u662f\u4e00\u4e2a\u8868\u628a\u4e0d\u5e38\u7528\u7684\u5b57\u6bb5\u548c\u5e38\u7528\u7684\u5b57\u6bb5\u5c31\u884c\u62c6\u5206\uff0c\u7136\u540e\u5229\u7528\u4e3b\u952e\u5173\u8054\u3002\u6216\u8005\u4e00\u4e2a\u6570\u636e\u5e93\u91cc\u9762\u6709\u8ba2\u5355\u8868\u548c\u7528\u6237\u8868\uff0c\u6570\u636e\u91cf\u90fd\u5f88\u5927\uff0c\u8fdb\u884c\u5782\u76f4\u62c6\u5206\uff0c\u7528\u6237\u5e93\u5b58\u7528\u6237\u8868\u7684\u6570\u636e\uff0c\u8ba2\u5355\u5e93\u5b58\u8ba2\u5355\u8868\u7684\u6570\u636e<\/p>\n<p><img decoding=\"async\" width=\"677\" height=\"218\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJt\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u7f3a\u70b9\uff1a\u5782\u76f4\u5206\u9694\u7684\u7f3a\u70b9\u6bd4\u8f83\u660e\u663e\uff0c\u6570\u636e\u4e0d\u5728\u4e00\u5f20\u8868\u4e2d\uff0c\u4f1a\u589e\u52a0join \u6216 union\u4e4b\u7c7b\u7684\u64cd\u4f5c<\/p>\n<p>\u77e5\u9053\u4e86\u4e24\u4e2a\u77e5\u8bc6\u540e\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5206\u5e93\u5206\u8868\u7684\u65b9\u6848<\/p>\n<h4>1.\u53d6\u6a21\u65b9\u6848\uff1a<\/h4>\n<p>\u62c6\u5206\u4e4b\u524d\uff0c\u5148\u9884\u4f30\u4e00\u4e0b\u6570\u636e\u91cf\u3002\u6bd4\u5982\u7528\u6237\u8868\u67094000w\u6570\u636e\uff0c\u73b0\u5728\u8981\u628a\u8fd9\u4e9b\u6570\u636e\u5206\u52304\u4e2a\u8868user1 user2 uesr3 user4\u3002 \u6bd4\u5982id = 17\uff0c17\u5bf94\u53d6\u6a21\u4e3a1\uff0c\u52a0\u4e0a \uff0c\u6240\u4ee5\u8fd9\u6761\u6570\u636e\u5b58\u5230user2\u8868\u3002<\/p>\n<p>\u6ce8\u610f\uff1a\u8fdb\u884c\u6c34\u5e73\u62c6\u5206\u540e\u7684\u8868\u8981\u53bb\u6389auto_increment\u81ea\u589e\u957f\u3002\u8fd9\u65f6\u5019\u7684id\u53ef\u4ee5\u7528\u4e00\u4e2aid \u81ea\u589e\u957f\u4e34\u65f6\u8868\u83b7\u5f97\uff0c\u6216\u8005\u4f7f\u7528 redis incr\u7684\u65b9\u6cd5\u3002<\/p>\n<p><img decoding=\"async\" width=\"678\" height=\"293\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJu\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4f18\u70b9\uff1a \u6570\u636e\u5747\u5300\u7684\u5206\u5230\u5404\u4e2a\u8868\u4e2d\uff0c\u51fa\u73b0\u70ed\u70b9\u95ee\u9898\u7684\u6982\u7387\u5f88\u4f4e\u3002<\/p>\n<p>\u7f3a\u70b9\uff1a\u4ee5\u540e\u7684\u6570\u636e\u6269\u5bb9\u8fc1\u79fb\u6bd4\u8f83\u56f0\u96be\u96be\uff0c\u5f53\u6570\u636e\u91cf\u53d8\u5927\u4e4b\u540e\uff0c\u4ee5\u524d\u5206\u52304\u4e2a\u8868\u73b0\u5728\u8981\u5206\u52308\u4e2a\u8868\uff0c\u53d6\u6a21\u7684\u503c\u5c31\u53d8\u4e86\uff0c\u9700\u8981\u91cd\u65b0\u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u3002<\/p>\n<h4>2.range \u8303\u56f4\u65b9\u6848<\/h4>\n<p>\u4ee5\u8303\u56f4\u8fdb\u884c\u62c6\u5206\u6570\u636e\uff0c\u5c31\u662f\u5728\u67d0\u4e2a\u8303\u56f4\u5185\u7684\u8ba2\u5355\uff0c\u5b58\u653e\u5230\u67d0\u4e2a\u8868\u4e2d\u3002\u6bd4\u5982id=12\u5b58\u653e\u5230user1\u8868\uff0cid=1300\u4e07\u7684\u5b58\u653e\u5230user2 \u8868\u3002<\/p>\n<p><img decoding=\"async\" width=\"649\" height=\"271\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJv\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4f18\u70b9\uff1a\u6709\u5229\u4e8e\u5c06\u6765\u5bf9\u6570\u636e\u7684\u6269\u5bb9<\/p>\n<p>\u7f3a\u70b9\uff1a\u5982\u679c\u70ed\u70b9\u6570\u636e\u90fd\u5b58\u5728\u4e00\u4e2a\u8868\u4e2d\uff0c\u5219\u538b\u529b\u90fd\u5728\u4e00\u4e2a\u8868\u4e2d\uff0c\u5176\u4ed6\u8868\u6ca1\u6709\u538b\u529b\u3002<\/p>\n<p>\u6211\u4eec\u770b\u5230\u4ee5\u4e0a\u4e24\u79cd\u65b9\u6848 \u90fd\u5b58\u5728\u7f3a\u70b9 \u4f46\u662f\u5374\u53c8\u662f\u4e92\u8865\u7684\uff0c\u90a3\u4e48\u6211\u4eec\u5c06\u8fd9\u4e24\u4e2a\u65b9\u6848\u7ed3\u5408\u4f1a\u600e\u6837\u5462\uff1f<\/p>\n<h4>3.hash\u53d6\u6a21\u548crange\u65b9\u6848\u7ed3\u5408<\/h4>\n<p>\u5982\u4e0b\u56fe \u6211\u4eec\u53ef\u4ee5\u770b\u5230 group \u7ec4\u5b58\u653eid \u4e3a0~4000\u4e07\u7684\u6570\u636e\uff0c\u7136\u540e\u6709\u4e09\u4e2a\u6570\u636e\u5e93 DB0 DB1 DB2\uff0cDB0\u91cc\u9762\u6709\u56db\u4e2a\u6570\u636e\u5e93\uff0cDB1 \u548cDB2 \u6709\u4e09\u4e2a\u6570\u636e\u5e93<\/p>\n<p>\u5047\u5982id\u4e3a15000 \u7136\u540e\u5bf910\u53d6\u6a21\uff08\u4e3a\u5565\u5bf910 \u53d6\u6a21 \u56e0\u4e3a\u670910\u4e2a\u8868\uff09\uff0c\u53d60 \u7136\u540e \u843d\u5728DB_0,\u7136\u540e\u5728\u6839\u636erange \u8303\u56f4\uff0c\u843d\u5728Table_0 \u91cc\u9762\u3002<\/p>\n<p><img decoding=\"async\" width=\"723\" height=\"477\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJw\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u603b\u7ed3\uff1a\u91c7\u7528hash\u53d6\u6a21\u548crange\u65b9\u6848\u7ed3\u5408 \u65e2\u53ef\u4ee5\u907f\u514d\u70ed\u70b9\u6570\u636e\u7684\u95ee\u9898\uff0c\u4e5f\u6709\u5229\u4e8e\u5c06\u6765\u5bf9\u6570\u636e\u7684\u6269\u5bb9<\/p>\n<p>\u6211\u4eec\u5df2\u7ecf\u4e86\u89e3\u4e86 mysql\u5206\u533a\u548c\u5206\u8868\u7684\u77e5\u8bc6 \u90a3\u6211\u4eec\u770b\u4e00\u4e0b\u8fd9\u4e24\u4e2a\u6280\u672f\u6709\u4f55\u4e0d\u540c\u4ee5\u53ca\u9002\u7528\u573a\u666f<\/p>\n<h3>\u5206\u533a\u5206\u8868\u7684\u533a\u522b\uff1a<\/h3>\n<h4>1\u3001\u5b9e\u73b0\u65b9\u5f0f\u4e0a<\/h4>\n<ul>\n<li>mysql\u7684\u5206\u8868\u662f\u771f\u6b63\u7684\u5206\u8868\uff0c\u4e00\u5f20\u8868\u5206\u6210\u5f88\u591a\u8868\u540e\uff0c\u6bcf\u4e00\u4e2a\u5c0f\u8868\u90fd\u662f\u5b8c\u6574\u7684\u4e00\u5f20\u8868\uff0c\u90fd\u5bf9\u5e94\u4e09\u4e2a\u6587\u4ef6\uff0c\u4e00\u4e2a.MYD\u6570\u636e\u6587\u4ef6\uff0c.MYI\u7d22\u5f15\u6587\u4ef6\uff0c.frm\u8868\u7ed3\u6784<\/li>\n<li>\u5206\u533a\u4e0d\u4e00\u6837\uff0c\u4e00\u5f20\u5927\u8868\u8fdb\u884c\u5206\u533a\u540e\uff0c\u4ed6\u8fd8\u662f\u4e00\u5f20\u8868\uff0c\u4e0d\u4f1a\u53d8\u6210\u4e8c\u5f20\u8868\uff0c\u4f46\u662f\u4ed6\u5b58\u653e\u6570\u636e\u7684\u533a\u5757\u53d8\u591a\u4e86\u3002<\/li>\n<\/ul>\n<h4>2\u3001\u63d0\u9ad8\u6027\u80fd\u4e0a<\/h4>\n<ul>\n<li>\u5206\u8868\u91cd\u70b9\u662f\u5b58\u53d6\u6570\u636e\u65f6\uff0c\u5982\u4f55\u63d0\u9ad8mysql\u5e76\u53d1\u80fd\u529b\u4e0a\uff1b<\/li>\n<li>\u800c\u5206\u533a\u5462\uff0c\u5982\u4f55\u7a81\u7834\u78c1\u76d8\u7684\u8bfb\u5199\u80fd\u529b\uff0c\u4ece\u800c\u8fbe\u5230\u63d0\u9ad8mysql\u6027\u80fd\u7684\u76ee\u7684\u3002<\/li>\n<\/ul>\n<h4>3\u3001\u5b9e\u73b0\u7684\u96be\u6613\u5ea6\u4e0a<\/h4>\n<p>1\u3001\u5206\u8868\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u7528merge\u6765\u5206\u8868\uff0c\u662f\u6700\u7b80\u5355\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u8fd9\u79cd\u65b9\u5f0f\u6839\u5206\u533a\u96be\u6613\u5ea6\u5dee\u4e0d\u591a\uff0c\u5e76\u4e14\u5bf9\u7a0b\u5e8f\u4ee3\u7801\u6765\u8bf4\u53ef\u4ee5\u505a\u5230\u900f\u660e\u7684\u3002\u5982\u679c\u662f\u7528\u5176\u4ed6\u5206\u8868\u65b9\u5f0f\u5c31\u6bd4\u5206\u533a\u9ebb\u70e6\u4e86\u3002 2\u3001\u5206\u533a\u5b9e\u73b0\u662f\u6bd4\u8f83\u7b80\u5355\u7684\uff0c\u5efa\u7acb\u5206\u533a\u8868\uff0c\u6839\u5efa\u5e73\u5e38\u7684\u8868\u6ca1\u4ec0\u4e48\u533a\u522b\uff0c\u5e76\u4e14\u5bf9\u5f00\u4ee3\u7801\u7aef\u6765\u8bf4\u662f\u900f\u660e\u7684<\/p>\n<h3>\u5206\u533a\u5206\u8868\u7684\u8054\u7cfb<\/h3>\n<p>1\u3001\u90fd\u80fd\u63d0\u9ad8mysql\u7684\u6027\u9ad8\uff0c\u5728\u9ad8\u5e76\u53d1\u72b6\u6001\u4e0b\u90fd\u6709\u4e00\u4e2a\u826f\u597d\u7684\u8868\u73b0\u3002<\/p>\n<p>2\u3001\u5206\u8868\u548c\u5206\u533a\u4e0d\u77db\u76fe\uff0c\u53ef\u4ee5\u76f8\u4e92\u914d\u5408\u7684\uff0c\u5bf9\u4e8e\u90a3\u4e9b\u5927\u8bbf\u95ee\u91cf\uff0c\u5e76\u4e14\u8868\u6570\u636e\u6bd4\u8f83\u591a\u7684\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u53d6\u5206\u8868\u548c\u5206\u533a\u7ed3\u5408\u7684\u65b9\u5f0f\uff0c\u8bbf\u95ee\u91cf\u4e0d\u5927\uff0c\u4f46\u662f\u8868\u6570\u636e\u5f88\u591a\u7684\u8868\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u53d6\u5206\u533a\u7684\u65b9\u5f0f\u7b49\u3002<\/p>\n<h3>\u5206\u5e93\u5206\u8868\u5b58\u5728\u7684\u95ee\u9898<\/h3>\n<h4>1\u3001\u4e8b\u52a1\u95ee\u9898<\/h4>\n<p>\u5728\u6267\u884c\u5206\u5e93\u5206\u8868\u4e4b\u540e\uff0c\u7531\u4e8e\u6570\u636e\u5b58\u50a8\u5230\u4e86\u4e0d\u540c\u7684\u5e93\u4e0a\uff0c\u6570\u636e\u5e93\u4e8b\u52a1\u7ba1\u7406\u51fa\u73b0\u4e86\u56f0\u96be\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\u6210\u7a0b\u5e8f\u903b\u8f91\u4e0a\u7684\u4e8b\u52a1\uff0c\u53c8\u4f1a\u9020\u6210\u7f16\u7a0b\u65b9\u9762\u7684\u8d1f\u62c5\u3002<\/p>\n<h4>2\u3001\u8de8\u5e93\u8de8\u8868\u7684join\u95ee\u9898<\/h4>\n<p>\u5728\u6267\u884c\u4e86\u5206\u5e93\u5206\u8868\u4e4b\u540e\uff0c\u96be\u4ee5\u907f\u514d\u4f1a\u5c06\u539f\u672c\u903b\u8f91\u5173\u8054\u6027\u5f88\u5f3a\u7684\u6570\u636e\u5212\u5206\u5230\u4e0d\u540c\u7684\u8868\u3001\u4e0d\u540c\u7684\u5e93\u4e0a\uff0c\u8fd9\u65f6\uff0c\u8868\u7684\u5173\u8054\u64cd\u4f5c\u5c06\u53d7\u5230\u9650\u5236\uff0c\u6211\u4eec\u65e0\u6cd5join\u4f4d\u4e8e\u4e0d\u540c\u5206\u5e93\u7684\u8868\uff0c\u4e5f\u65e0\u6cd5join\u5206\u8868\u7c92\u5ea6\u4e0d\u540c\u7684\u8868\uff0c\u7ed3\u679c\u539f\u672c\u4e00\u6b21\u67e5\u8be2\u80fd\u591f\u5b8c\u6210\u7684\u4e1a\u52a1\uff0c\u53ef\u80fd\u9700\u8981\u591a\u6b21\u67e5\u8be2\u624d\u80fd\u5b8c\u6210\u3002<\/p>\n<h4>3\u3001\u989d\u5916\u7684\u6570\u636e\u7ba1\u7406\u8d1f\u62c5\u548c\u6570\u636e\u8fd0\u7b97\u538b\u529b<\/h4>\n<p>\u989d\u5916\u7684\u6570\u636e\u7ba1\u7406\u8d1f\u62c5\uff0c\u6700\u663e\u800c\u6613\u89c1\u7684\u5c31\u662f\u6570\u636e\u7684\u5b9a\u4f4d\u95ee\u9898\u548c\u6570\u636e\u7684\u589e\u5220\u6539\u67e5\u7684\u91cd\u590d\u6267\u884c\u95ee\u9898\uff0c\u8fd9\u4e9b\u90fd\u53ef\u4ee5\u901a\u8fc7\u5e94\u7528\u7a0b\u5e8f\u89e3\u51b3\uff0c\u4f46\u5fc5\u7136\u5f15\u8d77\u989d\u5916\u7684\u903b\u8f91\u8fd0\u7b97\uff0c\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u8bb0\u5f55\u7528\u6237\u6210\u7ee9\u7684\u7528\u6237\u6570\u636e\u8868userTable\uff0c\u4e1a\u52a1\u8981\u6c42\u67e5\u51fa\u6210\u7ee9\u6700\u597d\u7684100\u4f4d\uff0c\u5728\u8fdb\u884c\u5206\u8868\u4e4b\u524d\uff0c\u53ea\u9700\u4e00\u4e2aorder 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referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJx\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ol>\n<li>\u4e1a\u52a1\u589e\u91cf\u6570\u636e\u5904\u7406\u8fc7\u7a0b<\/li>\n<\/ol>\n<p><img decoding=\"async\" width=\"720\" height=\"258\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJy\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ol>\n<li>\u6570\u636e\u7684\u83b7\u53d6\u8fc7\u7a0b<\/li>\n<\/ol>\n<p><img decoding=\"async\" width=\"405\" height=\"230\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc9mJz\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>\u4ee5\u4e0a\u4e09\u79cd\u65b9\u6848\u6211\u4eec\u5982\u4f55\u9009\u578b<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u65b9\u6848<\/th>\n<th>\u8bd5\u7528\u573a\u666f<\/th>\n<th>\u4f18\u70b9<\/th>\n<th>\u7f3a\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6570\u636e\u8868\u5206\u533a<\/td>\n<td>1.\u6570\u636e\u91cf\u8f83\u5927 2.\u67e5\u8be2\u573a\u666f\u53ea\u5728\u67d0\u4e2a\u533a 3.\u6ca1\u6709\u8054\u5408\u67e5\u8be2\u7684\u573a\u666f<\/td>\n<td>\u5206\u533a\u5206\u8868\u662f\u5728\u7269\u7406\u4e0a\u5bf9\u6570\u636e\u8868\u6240\u5bf9\u5e94\u7684\u6587\u4ef6\u8fdb\u884c\u62c6\u5206\uff0c\u5bf9\u5e94\u7684\u8868\u540d\u662f\u4e0d\u53d8\u7684\uff0c\u6240\u4ee5\u4e0d\u4f1a\u5f71\u54cd\u5230\u4e4b\u524d\u4e1a\u52a1\u903b\u8f91\u7684sql<\/td>\n<td>\u5206\u8868\u540e\u7684\u67e5\u8be2\u7b49\u4e1a\u52a1\u4f1a\u521b\u5efa\u5bf9\u5e94\u7684\u5bf9\u8c61\uff0c\u4e5f\u4f1a\u9020\u6210\u4e00\u5b9a\u7684\u5f00\u9500\u5206\u533a\u6570\u636e\u82e5\u8981\u805a\u5408\u7684\u8bdd \u8017\u8d39\u65f6\u95f4\u4e5f\u8f83\u957f\uff1b\u4f7f\u7528\u8303\u56f4\u4e0d\u9002\u5408\u6570\u636e\u91cf\u5343\u4e07\u7ea7\u4ee5\u4e0a\u7684<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u8868\u5206\u8868<\/td>\n<td>\u6570\u636e\u91cf\u8f83\u5927,\u65e0\u6cd5\u533a\u5206\u660e\u663e\u51b7\u70ed\u533a 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noreferrer\">https:\/\/blog.csdn.net\/qq_36770474\/article\/details\/119537186<\/a><\/p>\n<p><strong>\u8fd1\u671f\u70ed\u6587\u63a8\u8350\uff1a<\/strong><\/p>\n<p>1.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=hY8HNMKJ5C8VlVm9zGOZEQ%3D%3D.A5kr9uRGXB0R10Nz4nYPV0VntnMexz7nNtJkz90KvEs%3D\" rel=\"noopener noreferrer\">1,000+ \u9053 Java\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u6574\u7406(2022\u6700\u65b0\u7248)<\/a><\/p>\n<p>2.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=ruTiTz9%2FJdLDxBhDNq6%2FuQ%3D%3D.jojIUl%2BIyyUtmJ3QQW%2FJC3%2Fsbv9dtGsjW8zxYj8%2FL1vFb%2F4rJx5KvVGd1p3j5m0XzUH%2FZ5fjLrMJV8nvYrIQIw%3D%3D\" rel=\"noopener noreferrer\">\u52b2\u7206\uff01Java \u534f\u7a0b\u8981\u6765\u4e86\u3002\u3002\u3002<\/a><\/p>\n<p>3.<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=cvc%2F0WKPBd8d4nuZsKwWrA%3D%3D.gPfc1LR0yiDfM8uhAOp6gDjSeTXV%2Bz8Aq%2Fz1ZtZprkIOyu6JSPdY8d9TTuv7LIoC\" rel=\"noopener noreferrer\">Spring Boot 2.x 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href=\"https:\/\/segmentfault.com\/a\/1190000044139004\">https:\/\/segmentfault.com\/a\/1190000044139004<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005\uff1a\u9a6c\u4f69 \/\u94fe\u63a5\uff1ahttps:\/\/juejin.cn\/post\/7146016771936354312 \u573a\u666f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10008138","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008138"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008138\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}