{"id":185260,"date":"2024-11-10T20:04:17","date_gmt":"2024-11-10T12:04:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185260\/"},"modified":"2024-11-10T20:04:18","modified_gmt":"2024-11-10T12:04:18","slug":"%e4%bd%bf%e7%94%a8sql-truncate-table%e8%aa%9e%e5%8f%a5%e5%af%a6%e7%8f%be%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185260\/","title":{"rendered":"\u4f7f\u7528SQL TRUNCATE TABLE\u8a9e\u53e5\u5be6\u73fe\u522a\u9664\u6578\u64da"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8sql-truncate-table%e8%aa%9e%e5%8f%a5%e5%af%a6%e7%8f%be%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-IQHZTHSncF\">\u4f7f\u7528SQL TRUNCATE TABLE\u8a9e\u53e5\u5be6\u73fe\u522a\u9664\u6578\u64da<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u522a\u9664\u6578\u64da\u662f\u4e00\u9805\u5e38\u898b\u7684\u64cd\u4f5c\u3002SQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u522a\u9664\u6578\u64da\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u5169\u7a2e\u8a9e\u53e5\u662fDELETE\u548cTRUNCATE TABLE\u3002\u672c\u6587\u5c07\u91cd\u9ede\u4ecb\u7d39TRUNCATE TABLE\u8a9e\u53e5\u7684\u4f7f\u7528\u53ca\u5176\u7279\u9ede\u3002<\/p>\n<h2 id=\"truncate-table%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-IQHZTHSncF\">TRUNCATE TABLE\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>TRUNCATE TABLE\u662f\u4e00\u500bSQL\u8a9e\u53e5\uff0c\u7528\u65bc\u5feb\u901f\u522a\u9664\u8868\u4e2d\u7684\u6240\u6709\u884c\u3002\u8207DELETE\u8a9e\u53e5\u4e0d\u540c\uff0cTRUNCATE TABLE\u4e0d\u6703\u9010\u884c\u522a\u9664\u6578\u64da\uff0c\u800c\u662f\u901a\u904e\u91cd\u7f6e\u8868\u7684\u6578\u64da\u9801\u4f86\u5be6\u73fe\u522a\u9664\uff0c\u9019\u4f7f\u5f97TRUNCATE TABLE\u5728\u6027\u80fd\u4e0a\u66f4\u5177\u512a\u52e2\u3002<\/p>\n<h2 id=\"truncate-table%e7%9a%84%e8%aa%9e%e6%b3%95-IQHZTHSncF\">TRUNCATE TABLE\u7684\u8a9e\u6cd5<\/h2>\n<pre><code>TRUNCATE TABLE table_name;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>table_name<\/code>\u662f\u60a8\u5e0c\u671b\u6e05\u7a7a\u7684\u8868\u7684\u540d\u7a31\u3002\u57f7\u884c\u6b64\u8a9e\u53e5\u5f8c\uff0c\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\u5c07\u88ab\u522a\u9664\uff0c\u4e26\u4e14\u7121\u6cd5\u6062\u5fa9\u3002<\/p>\n<h2 id=\"truncate-table%e7%9a%84%e7%89%b9%e9%bb%9e-IQHZTHSncF\">TRUNCATE TABLE\u7684\u7279\u9ede<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u512a\u52e2\uff1a<\/strong>\u7531\u65bcTRUNCATE TABLE\u4e0d\u6703\u9010\u884c\u522a\u9664\u6578\u64da\uff0c\u56e0\u6b64\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u5b83\u7684\u57f7\u884c\u901f\u5ea6\u901a\u5e38\u6bd4DELETE\u5feb\u5f97\u591a\u3002<\/li>\n<li><strong>\u7121\u6cd5\u6062\u5fa9\uff1a<\/strong>\u4f7f\u7528TRUNCATE TABLE\u522a\u9664\u7684\u6578\u64da\u7121\u6cd5\u901a\u904eROLLBACK\u6062\u5fa9\uff0c\u56e0\u70ba\u5b83\u4e0d\u6703\u8a18\u9304\u6bcf\u4e00\u884c\u7684\u522a\u9664\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u91cd\u7f6e\u81ea\u589e\u5217\uff1a<\/strong>\u5982\u679c\u8868\u4e2d\u6709\u81ea\u589e\u5217\uff0c\u4f7f\u7528TRUNCATE TABLE\u6703\u5c07\u81ea\u589e\u8a08\u6578\u5668\u91cd\u7f6e\u70ba\u521d\u59cb\u503c\u3002<\/li>\n<li><strong>\u7121\u6cd5\u8207WHERE\u5b50\u53e5\u4e00\u8d77\u4f7f\u7528\uff1a<\/strong>TRUNCATE TABLE\u7121\u6cd5\u6307\u5b9a\u689d\u4ef6\uff0c\u9019\u610f\u5473\u8457\u5b83\u53ea\u80fd\u522a\u9664\u6574\u500b\u8868\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"truncate-table%e7%9a%84%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-IQHZTHSncF\">TRUNCATE TABLE\u7684\u4f7f\u7528\u5834\u666f<\/h2>\n<p>TRUNCATE TABLE\u901a\u5e38\u7528\u65bc\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u7576\u9700\u8981\u6e05\u7a7a\u4e00\u500b\u8868\u4ee5\u4fbf\u91cd\u65b0\u586b\u5145\u6578\u64da\u6642\u3002<\/li>\n<li>\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\uff0c\u5feb\u901f\u6e05\u9664\u6e2c\u8a66\u6578\u64da\u4ee5\u4fbf\u9032\u884c\u65b0\u7684\u6e2c\u8a66\u3002<\/li>\n<li>\u5728\u6578\u64da\u5eab\u7dad\u8b77\u904e\u7a0b\u4e2d\uff0c\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"truncate-table%e7%9a%84%e7%a4%ba%e4%be%8b-IQHZTHSncF\">TRUNCATE TABLE\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528TRUNCATE TABLE\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>-- \u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba employees \u7684\u8868\nTRUNCATE TABLE employees;<\/code><\/pre>\n<p>\u57f7\u884c\u4e0a\u8ff0\u8a9e\u53e5\u5f8c\uff0c<code>employees<\/code>\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\u5c07\u88ab\u522a\u9664\uff0c\u4e26\u4e14\u81ea\u589e\u5217\u7684\u8a08\u6578\u5668\u5c07\u91cd\u7f6e\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-IQHZTHSncF\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528TRUNCATE TABLE\u6642\uff0c\u9700\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u5728\u57f7\u884c\u6b64\u64cd\u4f5c\u4e4b\u524d\u5099\u4efd\u91cd\u8981\u6578\u64da\uff0c\u56e0\u70ba\u522a\u9664\u5f8c\u7121\u6cd5\u6062\u5fa9\u3002<\/li>\n<li>TRUNCATE TABLE\u7121\u6cd5\u5728\u6709\u5916\u9375\u7d04\u675f\u7684\u8868\u4e0a\u4f7f\u7528\uff0c\u9664\u975e\u5148\u522a\u9664\u7d04\u675f\u3002<\/li>\n<li>\u5728\u67d0\u4e9b\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\uff0cTRUNCATE TABLE\u53ef\u80fd\u9700\u8981\u7279\u5b9a\u7684\u6b0a\u9650\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-IQHZTHSncF\">\u7e3d\u7d50<\/h2>\n<p>TRUNCATE TABLE\u662f\u4e00\u500b\u9ad8\u6548\u7684SQL\u8a9e\u53e5\uff0c\u7528\u65bc\u5feb\u901f\u522a\u9664\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\u3002\u5b83\u7684\u6027\u80fd\u512a\u52e2\u4f7f\u5176\u6210\u70ba\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u7684\u7406\u60f3\u9078\u64c7\u3002\u7136\u800c\uff0c\u7531\u65bc\u5176\u4e0d\u53ef\u6062\u5fa9\u6027\u548c\u5c0d\u5916\u9375\u7d04\u675f\u7684\u9650\u5236\uff0c\u4f7f\u7528\u6642\u9700\u8b39\u614e\u8003\u616e\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u5c0d\u65bc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u6216\u5176\u4ed6<code>\u4e91\u670d\u52a1\u5668<\/code>\u7684\u9700\u6c42\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a> \u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528SQL TRUNCATE TABLE\u8a9e\u53e5\u5feb\u901f\u522a\u9664\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u4e26\u4fdd\u6301\u7d50\u69cb\u5b8c\u6574\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-185260","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185260","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=185260"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185260\/revisions"}],"predecessor-version":[{"id":185261,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185260\/revisions\/185261"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185260"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185260"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}