{"id":77492,"date":"2024-10-16T10:50:17","date_gmt":"2024-10-16T02:50:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/77492\/"},"modified":"2024-10-16T10:50:18","modified_gmt":"2024-10-16T02:50:18","slug":"mysql%e5%8e%9f%e7%90%86%e4%bb%8b%e7%b4%b9%ef%bc%8c%e4%bd%a0%e5%ad%b8%e6%9c%83%e4%ba%86%e5%97%8e%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/77492\/","title":{"rendered":"MySQL\u539f\u7406\u4ecb\u7d39\uff0c\u4f60\u5b78\u6703\u4e86\u55ce\uff1f"},"content":{"rendered":"<h1 id=\"mysql%e5%8e%9f%e7%90%86%e4%bb%8b%e7%b4%b9%ef%bc%8c%e4%bd%a0%e5%ad%b8%e6%9c%83%e4%ba%86%e5%97%8e%ef%bc%9f-gXWAbglEmH\">MySQL\u539f\u7406\u4ecb\u7d39\uff0c\u4f60\u5b78\u6703\u4e86\u55ce\uff1f<\/h1>\n<p>MySQL\u662f\u4e00\u7a2e\u6d41\u884c\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u7db2\u7ad9\u548c\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u5b83\u7684\u9ad8\u6548\u6027\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u958b\u767c\u8005\u548c\u4f01\u696d\u7684\u9996\u9078\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u7684\u57fa\u672c\u539f\u7406\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u5f37\u5927\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002<\/p>\n<h2 id=\"mysql%e7%9a%84%e6%9e%b6%e6%a7%8b-gXWAbglEmH\">MySQL\u7684\u67b6\u69cb<\/h2>\n<p>MySQL\u7684\u67b6\u69cb\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u5ba2\u6236\u7aef<\/strong>\uff1a\u7528\u6236\u901a\u904e\u5ba2\u6236\u7aef\u8207MySQL\u670d\u52d9\u5668\u9032\u884c\u4ea4\u4e92\uff0c\u5e38\u898b\u7684\u5ba2\u6236\u7aef\u5de5\u5177\u5305\u62ecMySQL Workbench\u548cphpMyAdmin\u3002<\/li>\n<li><strong>\u670d\u52d9\u5668<\/strong>\uff1aMySQL\u670d\u52d9\u5668\u8ca0\u8cac\u8655\u7406\u5ba2\u6236\u7aef\u7684\u8acb\u6c42\uff0c\u57f7\u884cSQL\u8a9e\u53e5\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\u3002<\/li>\n<li><strong>\u5b58\u5132\u5f15\u64ce<\/strong>\uff1aMySQL\u652f\u6301\u591a\u7a2e\u5b58\u5132\u5f15\u64ce\uff0c\u5982InnoDB\u548cMyISAM\uff0c\u6bcf\u7a2e\u5f15\u64ce\u90fd\u6709\u5176\u7279\u5b9a\u7684\u7279\u6027\u548c\u512a\u7f3a\u9ede\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-gXWAbglEmH\">\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u6578\u64da\u5eab\u662f\u7528\u4f86\u5b58\u5132\u6578\u64da\u7684\u5bb9\u5668\u3002\u6bcf\u500b\u6578\u64da\u5eab\u53ef\u4ee5\u5305\u542b\u591a\u500b\u8868\uff0c\u800c\u6bcf\u500b\u8868\u53c8\u7531\u591a\u884c\u548c\u591a\u5217\u7d44\u6210\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li><strong>\u8868\uff08Table\uff09<\/strong>\uff1a\u6578\u64da\u7684\u57fa\u672c\u5b58\u5132\u55ae\u4f4d\uff0c\u985e\u4f3c\u65bc\u96fb\u5b50\u8868\u683c\u7684\u884c\u548c\u5217\u3002<\/li>\n<li><strong>\u884c\uff08Row\uff09<\/strong>\uff1a\u8868\u4e2d\u7684\u4e00\u689d\u8a18\u9304\uff0c\u5305\u542b\u591a\u500b\u5b57\u6bb5\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u5217\uff08Column\uff09<\/strong>\uff1a\u8868\u4e2d\u7684\u4e00\u500b\u5b57\u6bb5\uff0c\u5b9a\u7fa9\u4e86\u6578\u64da\u7684\u985e\u578b\u548c\u5c6c\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"sql%e8%aa%9e%e8%a8%80-gXWAbglEmH\">SQL\u8a9e\u8a00<\/h2>\n<p>SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u7528\u65bc\u8207MySQL\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u8a9e\u8a00\u3002\u5e38\u898b\u7684SQL\u64cd\u4f5c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8a62\u6578\u64da<\/strong>\uff1a\u4f7f\u7528SELECT\u8a9e\u53e5\u5f9e\u8868\u4e2d\u6aa2\u7d22\u6578\u64da\u3002<\/li>\n<li><strong>\u63d2\u5165\u6578\u64da<\/strong>\uff1a\u4f7f\u7528INSERT\u8a9e\u53e5\u5c07\u65b0\u6578\u64da\u6dfb\u52a0\u5230\u8868\u4e2d\u3002<\/li>\n<li><strong>\u66f4\u65b0\u6578\u64da<\/strong>\uff1a\u4f7f\u7528UPDATE\u8a9e\u53e5\u4fee\u6539\u73fe\u6709\u6578\u64da\u3002<\/li>\n<li><strong>\u522a\u9664\u6578\u64da<\/strong>\uff1a\u4f7f\u7528DELETE\u8a9e\u53e5\u5f9e\u8868\u4e2d\u522a\u9664\u6578\u64da\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE age &gt; 18;<\/code><\/pre>\n<h2 id=\"%e4%ba%8b%e5%8b%99%e8%99%95%e7%90%86-gXWAbglEmH\">\u4e8b\u52d9\u8655\u7406<\/h2>\n<p>MySQL\u652f\u6301\u4e8b\u52d9\u8655\u7406\uff0c\u9019\u662f\u4e00\u7d44\u64cd\u4f5c\u7684\u96c6\u5408\uff0c\u9019\u4e9b\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\u3002\u4e8b\u52d9\u7684\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u539f\u5b50\u6027\uff08Atomicity\uff09<\/strong>\uff1a\u4e8b\u52d9\u4e2d\u7684\u6240\u6709\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u57f7\u884c\uff0c\u8981\u9ebc\u5168\u90e8\u4e0d\u57f7\u884c\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\uff08Consistency\uff09<\/strong>\uff1a\u4e8b\u52d9\u57f7\u884c\u524d\u5f8c\uff0c\u6578\u64da\u5eab\u7684\u72c0\u614b\u5fc5\u9808\u4fdd\u6301\u4e00\u81f4\u3002<\/li>\n<li><strong>\u9694\u96e2\u6027\uff08Isolation\uff09<\/strong>\uff1a\u540c\u6642\u57f7\u884c\u7684\u4e8b\u52d9\u4e0d\u6703\u76f8\u4e92\u5f71\u97ff\u3002<\/li>\n<li><strong>\u6301\u4e45\u6027\uff08Durability\uff09<\/strong>\uff1a\u4e00\u65e6\u4e8b\u52d9\u63d0\u4ea4\uff0c\u6578\u64da\u7684\u8b8a\u66f4\u5c07\u6c38\u4e45\u4fdd\u5b58\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8-gXWAbglEmH\">\u7d22\u5f15\u7684\u4f7f\u7528<\/h2>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u91cd\u8981\u5de5\u5177\u3002MySQL\u652f\u6301\u591a\u7a2e\u7d22\u5f15\u985e\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>B-Tree\u7d22\u5f15<\/strong>\uff1a\u6700\u5e38\u7528\u7684\u7d22\u5f15\u985e\u578b\uff0c\u9069\u5408\u7bc4\u570d\u67e5\u8a62\u3002<\/li>\n<li><strong>\u54c8\u5e0c\u7d22\u5f15<\/strong>\uff1a\u9069\u5408\u7cbe\u78ba\u67e5\u8a62\uff0c\u4f46\u4e0d\u652f\u6301\u7bc4\u570d\u67e5\u8a62\u3002<\/li>\n<li><strong>\u5168\u6587\u7d22\u5f15<\/strong>\uff1a\u9069\u5408\u5c0d\u6587\u672c\u9032\u884c\u641c\u7d22\u3002<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\uff0c\u4f46\u904e\u591a\u7684\u7d22\u5f15\u6703\u5f71\u97ff\u6578\u64da\u7684\u63d2\u5165\u548c\u66f4\u65b0\u6027\u80fd\uff0c\u56e0\u6b64\u9700\u8981\u6839\u64da\u5be6\u969b\u9700\u6c42\u9032\u884c\u5408\u7406\u8a2d\u8a08\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-gXWAbglEmH\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u4e86\u89e3\u5176\u57fa\u672c\u539f\u7406\u5c0d\u65bc\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u81f3\u95dc\u91cd\u8981\u3002\u638c\u63e1MySQL\u7684\u67b6\u69cb\u3001\u57fa\u672c\u6982\u5ff5\u3001SQL\u8a9e\u8a00\u3001\u4e8b\u52d9\u8655\u7406\u548c\u7d22\u5f15\u4f7f\u7528\uff0c\u53ef\u4ee5\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bcVPS\u3001<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u3001<a href=\"https:\/\/server.hk\">\u670d\u52a1\u5668<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MySQL\u7684\u57fa\u672c\u539f\u7406\uff0c\u4e86\u89e3\u6578\u64da\u5eab\u7684\u904b\u4f5c\u65b9\u5f0f\uff0c\u63d0\u5347\u4f60\u7684\u6578\u64da\u7ba1\u7406\u6280\u80fd\uff0c\u8b93\u4f60\u5728\u5b78\u7fd2\u4e2d\u66f4\u9032\u4e00\u6b65\uff01<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-77492","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=77492"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77492\/revisions"}],"predecessor-version":[{"id":77493,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77492\/revisions\/77493"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=77492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=77492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=77492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}