{"id":77630,"date":"2024-10-16T10:59:19","date_gmt":"2024-10-16T02:59:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/77630\/"},"modified":"2024-10-16T10:59:19","modified_gmt":"2024-10-16T02:59:19","slug":"mysql%e6%94%af%e6%92%90%e7%99%be%e8%90%ac%e7%b4%9a%e6%b5%81%e9%87%8f%e9%ab%98%e4%b8%a6%e7%99%bc%e7%9a%84%e7%b6%b2%e7%ab%99%e9%83%a8%e7%bd%b2%e8%a9%b3%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/77630\/","title":{"rendered":"MySQL\u652f\u6490\u767e\u842c\u7d1a\u6d41\u91cf\u9ad8\u4e26\u767c\u7684\u7db2\u7ad9\u90e8\u7f72\u8a73\u89e3"},"content":{"rendered":"<h1 id=\"mysql%e6%94%af%e6%92%90%e7%99%be%e8%90%ac%e7%b4%9a%e6%b5%81%e9%87%8f%e9%ab%98%e4%b8%a6%e7%99%bc%e7%9a%84%e7%b6%b2%e7%ab%99%e9%83%a8%e7%bd%b2%e8%a9%b3%e8%a7%a3-UKNDWdbfYL\">MySQL\u652f\u6490\u767e\u842c\u7d1a\u6d41\u91cf\u9ad8\u4e26\u767c\u7684\u7db2\u7ad9\u90e8\u7f72\u8a73\u89e3<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u4f4d\u6642\u4ee3\uff0c\u7db2\u7ad9\u7684\u6d41\u91cf\u548c\u4e26\u767c\u91cf\u4e0d\u65b7\u6500\u5347\uff0c\u5c24\u5176\u662f\u5c0d\u65bc\u90a3\u4e9b\u5e0c\u671b\u5728\u7af6\u722d\u6fc0\u70c8\u7684\u5e02\u5834\u4e2d\u812b\u7a4e\u800c\u51fa\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u81f3\u95dc\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u958b\u6e90\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u56e0\u5176\u9ad8\u6548\u6027\u548c\u7a69\u5b9a\u6027\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5229\u7528MySQL\u652f\u6490\u767e\u842c\u7d1a\u6d41\u91cf\u7684\u9ad8\u4e26\u767c\u7db2\u7ad9\u90e8\u7f72\u3002<\/p>\n<h2 id=\"1-mysql%e7%9a%84%e6%9e%b6%e6%a7%8b%e8%88%87%e7%89%b9%e6%80%a7-UKNDWdbfYL\">1. MySQL\u7684\u67b6\u69cb\u8207\u7279\u6027<\/h2>\n<p>MySQL\u7684\u67b6\u69cb\u57fa\u65bc\u5ba2\u6236\u7aef-\u4f3a\u670d\u5668\u6a21\u578b\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u6709\u6548\u5730\u8655\u7406\u5927\u91cf\u7684\u8acb\u6c42\u3002\u5176\u4e3b\u8981\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u7684\u67e5\u8a62\u8655\u7406\uff1a<\/strong>MySQL\u4f7f\u7528\u67e5\u8a62\u7de9\u5b58\u548c\u7d22\u5f15\u4f86\u52a0\u901f\u6578\u64da\u6aa2\u7d22\u3002<\/li>\n<li><strong>\u4e8b\u52d9\u652f\u6301\uff1a<\/strong>\u652f\u6301ACID\uff08\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u96e2\u6027\u3001\u6301\u4e45\u6027\uff09\u7279\u6027\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>\u53ef\u4ee5\u901a\u904e\u5206\u7247\u548c\u8907\u88fd\u4f86\u64f4\u5c55\u6578\u64da\u5eab\u7684\u5bb9\u91cf\u548c\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e9%ab%98%e4%b8%a6%e7%99%bc%e7%9a%84%e6%8c%91%e6%88%b0-UKNDWdbfYL\">2. \u9ad8\u4e26\u767c\u7684\u6311\u6230<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0cMySQL\u9762\u81e8\u7684\u4e3b\u8981\u6311\u6230\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9396\u7af6\u722d\uff1a<\/strong>\u7576\u591a\u500b\u8acb\u6c42\u540c\u6642\u8a2a\u554f\u76f8\u540c\u7684\u6578\u64da\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u9396\u7af6\u722d\uff0c\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li><strong>\u67e5\u8a62\u6027\u80fd\uff1a<\/strong>\u8907\u96dc\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u9650\u5236\uff1a<\/strong>\u4f3a\u670d\u5668\u7684CPU\u3001\u5167\u5b58\u548cI\/O\u6027\u80fd\u53ef\u80fd\u6210\u70ba\u74f6\u9838\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e9%83%a8%e7%bd%b2%e7%ad%96%e7%95%a5-UKNDWdbfYL\">3. \u90e8\u7f72\u7b56\u7565<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u652f\u6490\u9ad8\u4e26\u767c\u7684\u7db2\u7ad9\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u90e8\u7f72\u7b56\u7565\uff1a<\/p>\n<h3 id=\"3-1-%e4%bd%bf%e7%94%a8%e8%ae%80%e5%af%ab%e5%88%86%e9%9b%a2-UKNDWdbfYL\">3.1 \u4f7f\u7528\u8b80\u5beb\u5206\u96e2<\/h3>\n<p>\u901a\u904e\u5c07\u8b80\u8acb\u6c42\u548c\u5beb\u8acb\u6c42\u5206\u958b\uff0c\u53ef\u4ee5\u6e1b\u5c11\u4e3b\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002\u901a\u5e38\uff0c\u4e3b\u6578\u64da\u5eab\u8655\u7406\u5beb\u8acb\u6c42\uff0c\u800c\u591a\u500b\u5f9e\u6578\u64da\u5eab\u8655\u7406\u8b80\u8acb\u6c42\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<pre><code>-- \u4e3b\u6578\u64da\u5eab\nCREATE DATABASE main_db;\n\n-- \u5f9e\u6578\u64da\u5eab\nCREATE DATABASE replica_db;<\/code><\/pre>\n<h3 id=\"3-2-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2-UKNDWdbfYL\">3.2 \u512a\u5316\u67e5\u8a62<\/h3>\n<p>\u4f7f\u7528EXPLAIN\u8a9e\u53e5\u4f86\u5206\u6790\u67e5\u8a62\u6027\u80fd\uff0c\u4e26\u6839\u64da\u7d50\u679c\u9032\u884c\u512a\u5316\u3002\u4f8b\u5982\uff0c\u78ba\u4fdd\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u3002<\/p>\n<pre><code>EXPLAIN SELECT * FROM users WHERE email = 'example@example.com';<\/code><\/pre>\n<h3 id=\"3-3-%e4%bd%bf%e7%94%a8%e7%b7%a9%e5%ad%98%e6%8a%80%e8%a1%93-UKNDWdbfYL\">3.3 \u4f7f\u7528\u7de9\u5b58\u6280\u8853<\/h3>\n<p>\u5229\u7528\u7de9\u5b58\u6280\u8853\uff08\u5982Redis\u6216Memcached\uff09\u4f86\u5b58\u5132\u983b\u7e41\u8a2a\u554f\u7684\u6578\u64da\uff0c\u6e1b\u5c11\u5c0dMySQL\u7684\u76f4\u63a5\u67e5\u8a62\u3002<\/p>\n<pre><code>SET cache_key = 'user_data';\nSET cache_value = (SELECT * FROM users WHERE id = 1);<\/code><\/pre>\n<h3 id=\"3-4-%e5%9e%82%e7%9b%b4%e8%88%87%e6%b0%b4%e5%b9%b3%e6%93%b4%e5%b1%95-UKNDWdbfYL\">3.4 \u5782\u76f4\u8207\u6c34\u5e73\u64f4\u5c55<\/h3>\n<p>\u6839\u64da\u9700\u6c42\u9032\u884c\u5782\u76f4\u64f4\u5c55\uff08\u589e\u52a0\u4f3a\u670d\u5668\u8cc7\u6e90\uff09\u6216\u6c34\u5e73\u64f4\u5c55\uff08\u589e\u52a0\u4f3a\u670d\u5668\u6578\u91cf\uff09\uff0c\u4ee5\u61c9\u5c0d\u6d41\u91cf\u7684\u589e\u9577\u3002<\/p>\n<h2 id=\"4-%e7%9b%a3%e6%8e%a7%e8%88%87%e7%b6%ad%e8%ad%b7-UKNDWdbfYL\">4. \u76e3\u63a7\u8207\u7dad\u8b77<\/h2>\n<p>\u5b9a\u671f\u76e3\u63a7MySQL\u7684\u6027\u80fd\u6307\u6a19\uff0c\u5982\u67e5\u8a62\u57f7\u884c\u6642\u9593\u3001\u9396\u7b49\u5f85\u6642\u9593\u7b49\uff0c\u4e26\u6839\u64da\u6578\u64da\u9032\u884c\u8abf\u6574\u3002\u6b64\u5916\uff0c\u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7684\u5099\u4efd\u548c\u7dad\u8b77\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-UKNDWdbfYL\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u80fd\u5920\u6709\u6548\u652f\u6490\u767e\u842c\u7d1a\u6d41\u91cf\u7684\u9ad8\u4e26\u767c\u7db2\u7ad9\u3002\u901a\u904e\u5408\u7406\u7684\u90e8\u7f72\u7b56\u7565\uff0c\u5982\u8b80\u5beb\u5206\u96e2\u3001\u67e5\u8a62\u512a\u5316\u3001\u7de9\u5b58\u6280\u8853\u53ca\u64f4\u5c55\u65b9\u6848\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7db2\u7ad9\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u90e8\u7f72\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eMySQL\u5728\u9ad8\u4e26\u767c\u3001\u767e\u842c\u7d1a\u6d41\u91cf\u7db2\u7ad9\u90e8\u7f72\u4e2d\u7684\u61c9\u7528\u8207\u6700\u4f73\u5be6\u8e10\uff0c\u52a9\u60a8\u63d0\u5347\u6027\u80fd\u8207\u7a69\u5b9a\u6027\u3002<\/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-77630","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77630","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=77630"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77630\/revisions"}],"predecessor-version":[{"id":77631,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77630\/revisions\/77631"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=77630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=77630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=77630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}