{"id":187564,"date":"2024-11-11T15:19:18","date_gmt":"2024-11-11T07:19:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187564\/"},"modified":"2024-11-11T15:19:19","modified_gmt":"2024-11-11T07:19:19","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e5%84%aa%e5%8c%96%ef%bc%9a%e7%b8%ae%e5%b0%8f%e5%ad%98%e5%84%b2%e7%a9%ba%e9%96%93-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b8%ae%e5%b0%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187564\/","title":{"rendered":"\u6578\u64da\u5eab\u512a\u5316\uff1a\u7e2e\u5c0f\u5b58\u5132\u7a7a\u9593 (\u6578\u64da\u5eab\u7e2e\u5c0f)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e5%84%aa%e5%8c%96%ef%bc%9a%e7%b8%ae%e5%b0%8f%e5%ad%98%e5%84%b2%e7%a9%ba%e9%96%93-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b8%ae%e5%b0%8f-mNqIuhZRkj\">\u6578\u64da\u5eab\u512a\u5316\uff1a\u7e2e\u5c0f\u5b58\u5132\u7a7a\u9593 (\u6578\u64da\u5eab\u7e2e\u5c0f)<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u512a\u5316\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5982\u4f55\u6709\u6548\u5730\u7e2e\u5c0f\u6578\u64da\u5eab\u7684\u5b58\u5132\u7a7a\u9593\u6210\u70ba\u4e86\u8a31\u591a\u4f01\u696d\u9762\u81e8\u7684\u4e00\u500b\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u512a\u5316\u7684\u5e7e\u7a2e\u65b9\u6cd5\uff0c\u7279\u5225\u662f\u5982\u4f55\u7e2e\u5c0f\u5b58\u5132\u7a7a\u9593\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u964d\u4f4e\u6210\u672c\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e7%b8%ae%e5%b0%8f%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%98%e5%84%b2%e7%a9%ba%e9%96%93%ef%bc%9f-mNqIuhZRkj\">\u70ba\u4ec0\u9ebc\u9700\u8981\u7e2e\u5c0f\u6578\u64da\u5eab\u5b58\u5132\u7a7a\u9593\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u5b58\u5132\u7a7a\u9593\u4e0d\u50c5\u5f71\u97ff\u5230\u6578\u64da\u7684\u5b58\u53d6\u901f\u5ea6\uff0c\u9084\u76f4\u63a5\u95dc\u4fc2\u5230\u904b\u71df\u6210\u672c\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u5b58\u5132\u6210\u672c\u4e5f\u96a8\u4e4b\u4e0a\u5347\u3002\u7e2e\u5c0f\u6578\u64da\u5eab\u7684\u5b58\u5132\u7a7a\u9593\u53ef\u4ee5\u5e36\u4f86\u4ee5\u4e0b\u5e7e\u500b\u597d\u8655\uff1a<\/p>\n<ul>\n<li>\u964d\u4f4e\u5b58\u5132\u6210\u672c\uff1a\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u53ef\u4ee5\u986f\u8457\u964d\u4f4e\u5b58\u5132\u8cbb\u7528\u3002<\/li>\n<li>\u63d0\u9ad8\u6027\u80fd\uff1a\u8f03\u5c0f\u7684\u6578\u64da\u5eab\u53ef\u4ee5\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\uff0c\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li>\u7c21\u5316\u7dad\u8b77\uff1a\u6578\u64da\u91cf\u6e1b\u5c11\u5f8c\uff0c\u6578\u64da\u5eab\u7684\u5099\u4efd\u548c\u6062\u5fa9\u904e\u7a0b\u4e5f\u6703\u8b8a\u5f97\u66f4\u52a0\u9ad8\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b8%ae%e5%b0%8f%e7%9a%84%e7%ad%96%e7%95%a5-mNqIuhZRkj\">\u6578\u64da\u5eab\u7e2e\u5c0f\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e5%88%aa%e9%99%a4%e5%86%97%e9%a4%98%e6%95%b8%e6%93%9a-mNqIuhZRkj\">1. \u522a\u9664\u5197\u9918\u6578\u64da<\/h3>\n<p>\u5197\u9918\u6578\u64da\u662f\u6307\u91cd\u8907\u6216\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\uff0c\u522a\u9664\u9019\u4e9b\u5197\u9918\u6578\u64da\u53ef\u4ee5\u6709\u6548\u5730\u7e2e\u5c0f\u5b58\u5132\u7a7a\u9593\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u7528\u6236\u8cc7\u6599\u8868\uff0c\u53ef\u4ee5\u522a\u9664\u4e0d\u6d3b\u8e8d\u7528\u6236\u7684\u8a18\u9304\uff0c\u6216\u662f\u5408\u4f75\u91cd\u8907\u7684\u8a18\u9304\u3002<\/p>\n<pre><code>DELETE FROM users WHERE last_login &lt; &#039;2022-01-01&#039;;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%a3%93%e7%b8%ae-mNqIuhZRkj\">2. \u4f7f\u7528\u6578\u64da\u58d3\u7e2e<\/h3>\n<p>\u8a31\u591a\u73fe\u4ee3\u6578\u64da\u5eab\u7cfb\u7d71\u90fd\u652f\u6301\u6578\u64da\u58d3\u7e2e\u529f\u80fd\u3002\u901a\u904e\u58d3\u7e2e\u6578\u64da\uff0c\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u5b58\u5132\u7a7a\u9593\u7684\u4f7f\u7528\u3002\u4f8b\u5982\uff0cMySQL\u63d0\u4f9b\u4e86InnoDB\u8868\u7684\u58d3\u7e2e\u9078\u9805\uff0c\u9019\u53ef\u4ee5\u5728\u4e0d\u5f71\u97ff\u6027\u80fd\u7684\u60c5\u6cc1\u4e0b\u6e1b\u5c11\u6578\u64da\u7684\u5b58\u5132\u9700\u6c42\u3002<\/p>\n<pre><code>ALTER TABLE my_table ROW_FORMAT=COMPRESSED;<\/code><\/pre>\n<h3 id=\"3-%e5%84%aa%e5%8c%96%e7%b4%a2%e5%bc%95-mNqIuhZRkj\">3. \u512a\u5316\u7d22\u5f15<\/h3>\n<p>\u7d22\u5f15\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u91cd\u8981\u5de5\u5177\uff0c\u4f46\u904e\u591a\u6216\u4e0d\u5fc5\u8981\u7684\u7d22\u5f15\u6703\u4f54\u7528\u5927\u91cf\u5b58\u5132\u7a7a\u9593\u3002\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316\u7d22\u5f15\uff0c\u522a\u9664\u4e0d\u518d\u4f7f\u7528\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7e2e\u5c0f\u6578\u64da\u5eab\u7684\u5927\u5c0f\u3002<\/p>\n<pre><code>DROP INDEX index_name ON my_table;<\/code><\/pre>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e9%81%b8%e6%93%87-mNqIuhZRkj\">4. \u6578\u64da\u985e\u578b\u7684\u9078\u64c7<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u4ee5\u986f\u8457\u5f71\u97ff\u6578\u64da\u5eab\u7684\u5927\u5c0f\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u5b58\u5132\u5c0f\u7bc4\u570d\u6574\u6578\u7684\u5b57\u6bb5\uff0c\u4f7f\u7528TINYINT\u800c\u4e0d\u662fINT\u53ef\u4ee5\u7bc0\u7701\u7a7a\u9593\u3002\u540c\u6a23\uff0c\u5c0d\u65bc\u5b57\u7b26\u578b\u6578\u64da\uff0c\u4f7f\u7528VARCHAR\u800c\u4e0d\u662fCHAR\u53ef\u4ee5\u6e1b\u5c11\u5b58\u5132\u9700\u6c42\u3002<\/p>\n<pre><code>CREATE TABLE my_table (\n    id TINYINT,\n    name VARCHAR(100)\n);<\/code><\/pre>\n<h3 id=\"5-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e5%92%8c%e7%b6%ad%e8%ad%b7-mNqIuhZRkj\">5. \u5b9a\u671f\u6e05\u7406\u548c\u7dad\u8b77<\/h3>\n<p>\u5b9a\u671f\u9032\u884c\u6578\u64da\u5eab\u7684\u6e05\u7406\u548c\u7dad\u8b77\u662f\u4fdd\u6301\u6578\u64da\u5eab\u5065\u5eb7\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u9019\u5305\u62ec\u522a\u9664\u904e\u671f\u7684\u6578\u64da\u3001\u91cd\u5efa\u7d22\u5f15\u4ee5\u53ca\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\u7b49\u3002\u9019\u4e9b\u64cd\u4f5c\u4e0d\u50c5\u53ef\u4ee5\u7e2e\u5c0f\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u80fd\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-mNqIuhZRkj\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u512a\u5316\u548c\u7e2e\u5c0f\u5b58\u5132\u7a7a\u9593\u662f\u63d0\u5347\u6027\u80fd\u548c\u964d\u4f4e\u6210\u672c\u7684\u91cd\u8981\u63aa\u65bd\u3002\u901a\u904e\u522a\u9664\u5197\u9918\u6578\u64da\u3001\u4f7f\u7528\u6578\u64da\u58d3\u7e2e\u3001\u512a\u5316\u7d22\u5f15\u3001\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u4ee5\u53ca\u5b9a\u671f\u9032\u884c\u7dad\u8b77\uff0c\u4f01\u696d\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5176\u6578\u64da\u5eab\uff0c\u78ba\u4fdd\u5176\u5728\u4e0d\u65b7\u589e\u9577\u7684\u6578\u64da\u74b0\u5883\u4e2d\u4fdd\u6301\u9ad8\u6548\u904b\u884c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u670d\u52d9\u5c07\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u548c\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6578\u64da\u5eab\u512a\u5316\u6280\u8853\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7e2e\u5c0f\u5b58\u5132\u7a7a\u9593\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u5be6\u73fe\u6578\u64da\u7ba1\u7406\u7684\u6700\u4f73\u5be6\u8e10\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-187564","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187564","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=187564"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187564\/revisions"}],"predecessor-version":[{"id":187565,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187564\/revisions\/187565"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}