{"id":3121,"date":"2024-04-09T15:25:07","date_gmt":"2024-04-09T07:25:07","guid":{"rendered":"https:\/\/www.talktop.cn\/?p=3121"},"modified":"2024-12-14T21:59:49","modified_gmt":"2024-12-14T13:59:49","slug":"mysqlsql%e4%bc%98%e5%8c%96%e6%8c%87%e5%8d%97%ef%bc%9a%e6%89%a7%e8%a1%8c%e8%bf%87%e7%a8%8b%e5%85%a8%e9%9d%a2%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/www.talktop.cn\/?p=3121","title":{"rendered":"MySQL SQL\u4f18\u5316\u6307\u5357\uff1a\u6267\u884c\u8fc7\u7a0b\u5168\u9762\u4ecb\u7ecd"},"content":{"rendered":"\n<p>MySQL\u4f5c\u4e3a\u4e00\u6b3e\u5e7f\u6cdb\u5e94\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5728Java\u5f00\u53d1\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\u3002\u7136\u800c\uff0c\u5373\u4f7f\u662f\u7ecf\u9a8c\u4e30\u5bcc\u7684\u5f00\u53d1\u4eba\u5458\u4e5f\u5e38\u5e38\u4f1a\u5728SQL\u4f18\u5316\u65b9\u9762\u9047\u5230\u6311\u6218\u3002\u672c\u6587\u5c06\u4eceMySQL\u7684\u6784\u6210\u5f00\u59cb\u4ecb\u7ecd\uff0c\u6df1\u5165\u63a2\u8ba8MySQL\u6570\u636e\u5f15\u64ce\u7684\u4f18\u7f3a\u70b9\uff0c\u4ee5\u53caMySQL\u6267\u884c\u8fc7\u7a0b\u4e2d\u7684\u7ec6\u8282\u95ee\u9898\uff0c\u5e76\u63d0\u4f9b\u9488\u5bf9100w\u6570\u636e\u8868\u7684SQL\u4f18\u5316\u5efa\u8bae\u548c\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"614\" src=\"https:\/\/www.talktop.cn\/wp-content\/uploads\/2024\/04\/image-15-1024x614.png\" alt=\"\" class=\"wp-image-3122\" style=\"width:700px\" srcset=\"https:\/\/www.talktop.cn\/wp-content\/uploads\/2024\/04\/image-15-1024x614.png 1024w, https:\/\/www.talktop.cn\/wp-content\/uploads\/2024\/04\/image-15-300x180.png 300w, https:\/\/www.talktop.cn\/wp-content\/uploads\/2024\/04\/image-15-768x461.png 768w, https:\/\/www.talktop.cn\/wp-content\/uploads\/2024\/04\/image-15.png 1074w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e00\u3001MySQL\u7684\u6784\u6210<\/h5>\n\n\n\n<p>MySQL\u7531\u591a\u4e2a\u7ec4\u4ef6\u7ec4\u6210\uff0c\u5305\u62ec\u8fde\u63a5\u5668\u3001\u67e5\u8be2\u7f13\u5b58\u3001\u5206\u6790\u5668\u3001\u4f18\u5316\u5668\u3001\u6267\u884c\u5668\u7b49\u3002\u5176\u4e2d\uff0c\u8fde\u63a5\u5668\u8d1f\u8d23\u4e0e\u5ba2\u6237\u7aef\u5efa\u7acb\u8fde\u63a5\u548c\u9a8c\u8bc1\u8eab\u4efd\uff0c\u67e5\u8be2\u7f13\u5b58\u7528\u4e8e\u5b58\u50a8\u5df2\u7ecf\u6267\u884c\u8fc7\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u5206\u6790\u5668\u7528\u4e8e\u8bcd\u6cd5\u5206\u6790\u548c\u8bed\u6cd5\u5206\u6790\uff0c\u4f18\u5316\u5668\u7528\u4e8e\u751f\u6210\u6700\u4f18\u7684\u6267\u884c\u8ba1\u5212\uff0c\u6267\u884c\u5668\u5219\u8d1f\u8d23\u6267\u884c\u67e5\u8be2\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e8c\u3001MySQL\u6570\u636e\u5f15\u64ce<\/h5>\n\n\n\n<p>MySQL\u652f\u6301\u591a\u79cd\u6570\u636e\u5f15\u64ce\uff0c\u6bcf\u79cd\u5f15\u64ce\u90fd\u6709\u5176\u4f18\u7f3a\u70b9\u3002\u5e38\u7528\u7684\u6570\u636e\u5f15\u64ce\u5305\u62ecInnoDB\u3001MyISAM\u3001Memory\u7b49\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>InnoDB\uff1a\u652f\u6301\u4e8b\u52a1\u548c\u884c\u7ea7\u9501\uff0c\u9002\u5408\u4e8e\u9ad8\u5e76\u53d1\u548c\u5927\u91cf\u5199\u5165\u7684\u573a\u666f\uff0c\u4f46\u76f8\u5bf9\u5360\u7528\u66f4\u591a\u7684\u5185\u5b58\u548c\u5b58\u50a8\u7a7a\u95f4\u3002<\/li>\n\n\n\n<li>MyISAM\uff1a\u4e0d\u652f\u6301\u4e8b\u52a1\u548c\u884c\u7ea7\u9501\uff0c\u9002\u5408\u4e8e\u8bfb\u5bc6\u96c6\u578b\u5e94\u7528\uff0c\u5177\u6709\u8f83\u9ad8\u7684\u67e5\u8be2\u6027\u80fd\uff0c\u4f46\u4e0d\u9002\u5408\u9891\u7e41\u7684\u5199\u5165\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li>Memory\uff1a\u5c06\u6570\u636e\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u901f\u5ea6\u5feb\uff0c\u9002\u7528\u4e8e\u5bf9\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u4e34\u65f6\u8868\u6216\u7f13\u5b58\u6570\u636e\uff0c\u4f46\u6570\u636e\u4e0d\u6301\u4e45\u5316\u3002<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e09\u3001MySQL\u6267\u884c\u8fc7\u7a0b<\/h5>\n\n\n\n<p>MySQL\u6267\u884c\u8fc7\u7a0b\u4e2d\u6d89\u53ca\u591a\u4e2a\u9636\u6bb5\uff0c\u5305\u62ec\u8fde\u63a5\u3001\u67e5\u8be2\u89e3\u6790\u3001\u4f18\u5316\u5668\u9009\u62e9\u6267\u884c\u8ba1\u5212\u3001\u6267\u884c\u548c\u8fd4\u56de\u7ed3\u679c\u7b49\u3002<\/p>\n\n\n\n<p>\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5047\u8bbe\u6709\u4e00\u4e2a\u8868\u540d\u4e3a<code>user<\/code>\uff0c\u5305\u542b\u5b57\u6bb5<code>id<\/code>\u3001<code>name<\/code>\u548c<code>age<\/code>\u3002\u82e5\u8981\u67e5\u8be2\u5e74\u9f84\u5927\u4e8e18\u5c81\u7684\u7528\u6237\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0bSQL\u8bed\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-black-background-color has-text-color has-background has-link-color wp-elements-b15a826dae304dea397a144017ada0eb\"><code>SELECT * FROM user WHERE age &gt; 18;\n<\/code><\/pre>\n\n\n\n<p>MySQL\u5728\u6267\u884c\u8fd9\u4e2a\u67e5\u8be2\u65f6\uff0c\u9996\u5148\u4f1a\u8fdb\u884c\u8fde\u63a5\uff0c\u7136\u540e\u5bf9\u67e5\u8be2\u8fdb\u884c\u89e3\u6790\uff0c\u63a5\u7740\u4f18\u5316\u5668\u4f1a\u9009\u62e9\u6700\u4f18\u7684\u6267\u884c\u8ba1\u5212\uff0c\u53ef\u80fd\u4f1a\u5229\u7528\u5230\u7d22\u5f15\u7b49\u4f18\u5316\u624b\u6bb5\uff0c\u6700\u540e\u6267\u884c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8fde\u63a5\u9636\u6bb5<\/strong>\uff1a\u5f53\u5ba2\u6237\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42\u65f6\uff0cMySQL\u670d\u52a1\u5668\u4f1a\u5efa\u7acb\u4e0e\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u3002\u8fde\u63a5\u5668\u8d1f\u8d23\u5904\u7406\u8fde\u63a5\u8bf7\u6c42\uff0c\u5305\u62ec\u8eab\u4efd\u9a8c\u8bc1\u548c\u6743\u9650\u68c0\u67e5\u7b49\u3002\u5982\u679c\u8eab\u4efd\u9a8c\u8bc1\u901a\u8fc7\uff0c\u8fde\u63a5\u5668\u4f1a\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u5904\u7406\u540e\u7eed\u7684\u8bf7\u6c42\u3002<\/li>\n\n\n\n<li><strong>\u67e5\u8be2\u89e3\u6790\u9636\u6bb5<\/strong>\uff1a\u4e00\u65e6\u5efa\u7acb\u8fde\u63a5\uff0c\u5ba2\u6237\u7aef\u53d1\u9001SQL\u67e5\u8be2\u8bed\u53e5\u5230MySQL\u670d\u52a1\u5668\u3002MySQL\u7684\u67e5\u8be2\u89e3\u6790\u5668\u4f1a\u5bf9\u67e5\u8be2\u8bed\u53e5\u8fdb\u884c\u89e3\u6790\uff0c\u5305\u62ec\u8bcd\u6cd5\u5206\u6790\u548c\u8bed\u6cd5\u5206\u6790\uff0c\u4ee5\u786e\u4fdd\u8bed\u53e5\u7684\u5408\u6cd5\u6027\u548c\u6b63\u786e\u6027\u3002\u5982\u679c\u67e5\u8be2\u8bed\u53e5\u5b58\u5728\u8bed\u6cd5\u9519\u8bef\uff0c\u89e3\u6790\u9636\u6bb5\u4f1a\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u7ed9\u5ba2\u6237\u7aef\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u5316\u5668\u9009\u62e9\u6267\u884c\u8ba1\u5212<\/strong>\uff1a\u5728\u89e3\u6790\u5b8c\u67e5\u8be2\u8bed\u53e5\u540e\uff0cMySQL\u7684\u4f18\u5316\u5668\u8d1f\u8d23\u9009\u62e9\u6700\u4f18\u7684\u6267\u884c\u8ba1\u5212\u3002\u6267\u884c\u8ba1\u5212\u662f\u6307\u6267\u884c\u67e5\u8be2\u6240\u9700\u8981\u7684\u5177\u4f53\u64cd\u4f5c\u6b65\u9aa4\uff0c\u5305\u62ec\u8868\u7684\u8bfb\u53d6\u987a\u5e8f\u3001\u4f7f\u7528\u54ea\u4e9b\u7d22\u5f15\u3001\u8fde\u63a5\u65b9\u5f0f\u7b49\u3002\u4f18\u5316\u5668\u4f1a\u6839\u636e\u67e5\u8be2\u7684\u6761\u4ef6\u3001\u8868\u7684\u7ed3\u6784\u3001\u7d22\u5f15\u60c5\u51b5\u7b49\u56e0\u7d20\u6765\u751f\u6210\u6267\u884c\u8ba1\u5212\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n\n\n\n<li><strong>\u6267\u884c\u9636\u6bb5<\/strong>\uff1a\u4f18\u5316\u5668\u9009\u62e9\u5b8c\u6267\u884c\u8ba1\u5212\u540e\uff0cMySQL\u7684\u6267\u884c\u5668\u5f00\u59cb\u6267\u884c\u67e5\u8be2\u3002\u6267\u884c\u5668\u8d1f\u8d23\u6309\u7167\u6267\u884c\u8ba1\u5212\u7684\u6307\u793a\uff0c\u6267\u884c\u5177\u4f53\u7684\u64cd\u4f5c\uff0c\u5305\u62ec\u8bfb\u53d6\u6570\u636e\u3001\u6392\u5e8f\u3001\u805a\u5408\u7b49\u3002\u6267\u884c\u5668\u4f1a\u4e0e\u5b58\u50a8\u5f15\u64ce\u8fdb\u884c\u4ea4\u4e92\uff0c\u83b7\u53d6\u6570\u636e\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ol>\n\n\n\n<h5 class=\"wp-block-heading\">\u56db\u3001100w\u6570\u636e\u8868\u5efa\u8bae\u53ca\u6ce8\u610f\u4e8b\u9879<\/h5>\n\n\n\n<p>\u7ba1\u7406100w\u6570\u636e\u8868\u9700\u8981\u8003\u8651\u5230\u5b58\u50a8\u548c\u67e5\u8be2\u7684\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8bae\u548c\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n\n\n\n<ol 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