{"id":42014,"date":"2025-06-06T03:03:16","date_gmt":"2025-06-05T19:03:16","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/42014.html"},"modified":"2025-06-06T03:03:16","modified_gmt":"2025-06-05T19:03:16","slug":"mysql%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/42014.html","title":{"rendered":"MySql\uff08\u4e8c\uff09"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"-toc\" style=\"margin-left:80px\">\n<p id=\"1.mysql%E4%B8%AD%E7%9A%84%E6%B3%A8%E9%87%8A-toc\" style=\"margin-left:80px\">1.mysql\u4e2d\u7684\u6ce8\u91ca<\/p>\n<p id=\"2.mysql%E4%B8%AD%E5%A6%82%E4%BD%95%E6%9F%A5%E7%9C%8B%E6%95%B0%E6%8D%AE%E7%A9%BA%E4%B8%AD%E6%89%80%E6%9C%89%E7%9A%84%E6%95%B0%E6%8D%AE%E5%BA%93-toc\" style=\"margin-left:80px\">2.mysql\u4e2d\u5982\u4f55\u67e5\u770b\u6570\u636e\u7a7a\u4e2d\u6240\u6709\u7684\u6570\u636e\u5e93<\/p>\n<p id=\"3.%C2%A0%E5%88%9B%E5%BB%BA%E6%95%B0%E6%8D%AE%E5%BA%93-toc\" style=\"margin-left:80px\">3.\u00a0\u521b\u5efa\u6570\u636e\u5e93<\/p>\n<p id=\"%E6%A0%BC%E5%BC%8F1%C2%A0-toc\" style=\"margin-left:120px\">\u683c\u5f0f1\u00a0<\/p>\n<p id=\"%E6%A0%BC%E5%BC%8F2-toc\" style=\"margin-left:120px\">\u683c\u5f0f2<\/p>\n<p id=\"4.%E6%9F%A5%E7%9C%8B%E9%80%89%E6%8B%A9%E6%95%B0%E6%8D%AE%E5%BA%93-toc\" style=\"margin-left:80px\">4.\u67e5\u770b\u9009\u62e9\u6570\u636e\u5e93<\/p>\n<p id=\"1%EF%BC%89%E9%80%89%E6%8B%A9%E6%95%B0%E6%8D%AE%E5%BA%93-toc\" style=\"margin-left:120px\">1&#xff09;\u9009\u62e9\u6570\u636e\u5e93<\/p>\n<p id=\"2%EF%BC%89%E6%9F%A5%E7%9C%8B%E5%BD%93%E5%89%8D%E6%AD%A3%E5%9C%A8%E4%BD%BF%E7%94%A8%E7%9A%84%E6%95%B0%E6%8D%AE%E5%BA%93-toc\" style=\"margin-left:120px\">2&#xff09;\u67e5\u770b\u5f53\u524d\u6b63\u5728\u4f7f\u7528\u7684\u6570\u636e\u5e93<\/p>\n<p id=\"3%EF%BC%89%E6%9F%A5%E7%9C%8B%E4%B8%80%E4%B8%AA%E6%95%B0%E6%8D%AE%E5%BA%93%E7%9A%84%E5%AE%9A%E4%B9%89%E4%BF%A1%E6%81%AF-toc\" style=\"margin-left:120px\">3&#xff09;\u67e5\u770b\u4e00\u4e2a\u6570\u636e\u5e93\u7684\u5b9a\u4e49\u4fe1\u606f<\/p>\n<p id=\"5.%E4%BF%AE%E6%94%B9%E6%95%B0%E6%8D%AE%E5%BA%93%E7%9A%84%E5%AD%97%E7%AC%A6%E9%9B%86-toc\" style=\"margin-left:80px\">5.\u4fee\u6539\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6<\/p>\n<p id=\"6.%E5%88%A0%E9%99%A4%E6%95%B0%E6%8D%AE%E5%BA%93-toc\" style=\"margin-left:80px\">6.\u5220\u9664\u6570\u636e\u5e93<\/p>\n<hr id=\"hr-toc\" \/>\n<h4 id=\"1.mysql%E4%B8%AD%E7%9A%84%E6%B3%A8%E9%87%8A\">1.mysql\u4e2d\u7684\u6ce8\u91ca<\/h4>\n<p><span style=\"background-color:#4da8ee\">&#8212;<\/span> \u8fd9\u4e2a\u662f\u5355\u884c\u6ce8\u91ca \u00a0\u4e0d\u4f1a\u88ab\u6267\u884c<\/p>\n<p><span style=\"background-color:#4da8ee\">\/*<\/span> \u00a0\u00a0 \u00a0\u8fd9\u4e2a\u662f\u591a\u884c\u6ce8\u91ca&#xff0c;\u91cc\u9762\u7684\u5185\u5bb9\u4e0d\u4f1a\u88ab\u6267\u884c<\/p>\n<p><span style=\"background-color:#4da8ee\">*\/<\/span><\/p>\n<p><span style=\"background-color:#4da8ee\">#<\/span> \u8fd9\u4e2a\u4e5f\u662f\u5355\u884c\u6ce8\u91ca&#xff0c;\u4e5f\u662f\u4e0d\u4f1a\u88ab\u6267\u884c\u7684<\/p>\n<p>\u4e0b\u9762\u7684sql\u8bed\u53e5\u53ea\u6709\u6700\u540e\u4e00\u53e5\u4f1a\u6267\u884c<\/p>\n<p># show DATABASES; \u00a0<\/p>\n<p>\/* \u00a0\u00a0 \u00a0show databases; *\/<\/p>\n<p>&#8212; show databases; <span style=\"color:#fe2c24\">show DATABASES;<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"554\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190313-6841e9f18ec41.png\" width=\"1412\" \/><\/p>\n<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"604\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190313-6841e9f1c8352.png\" width=\"1419\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"227\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f2116d3.png\" width=\"1428\" \/><\/p>\n<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"252\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f234086.png\" width=\"675\" \/><\/p>\n<\/p>\n<h4 id=\"2.mysql%E4%B8%AD%E5%A6%82%E4%BD%95%E6%9F%A5%E7%9C%8B%E6%95%B0%E6%8D%AE%E7%A9%BA%E4%B8%AD%E6%89%80%E6%9C%89%E7%9A%84%E6%95%B0%E6%8D%AE%E5%BA%93\">2.mysql\u4e2d\u5982\u4f55\u67e5\u770b\u6570\u636e\u7a7a\u4e2d\u6240\u6709\u7684\u6570\u636e\u5e93<\/h4>\n<p>show databases;<\/p>\n<p>\u00a0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"250\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f2410ef.png\" width=\"443\" \/><\/p>\n<\/p>\n<h4 id=\"3.%C2%A0%E5%88%9B%E5%BB%BA%E6%95%B0%E6%8D%AE%E5%BA%93\">3.\u00a0\u521b\u5efa\u6570\u636e\u5e93<\/h4>\n<h5 id=\"%E6%A0%BC%E5%BC%8F1%C2%A0\" style=\"background-color:transparent\">\u683c\u5f0f1\u00a0<\/h5>\n<p>\u521b\u5efa\u6307\u5b9a\u540d\u5b57\u7684\u6570\u636e\u5e93<\/p>\n<p>create database\u00a0\u6570\u636e\u5e93\u540d\u5b57&#xff1b;<\/p>\n<p>create DATABASE <span style=\"color:#fe2c24\">studyDb<\/span>; <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"207\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f24de3c.png\" width=\"1408\" \/><\/p>\n<p>\u9f20\u6807\u53f3\u952e&#061;&#061;&#061;\u300b\u5355\u673a\u8fde\u63a5\u6570\u636e\u5e93\u540d\u5b57 &#061;&#061;&#061;&#061;\u300b\u70b9\u51fbrefresh &#061;&#061;&gt;\u53ef\u4ee5\u770b\u5230\u521a\u521a\u521b\u5efa\u7684\u6570\u636e\u5e93\u5237\u65b0\u51fa\u6765\u4e86\u3002<\/p>\n<h5 id=\"%E2%80%8B%E7%BC%96%E8%BE%91\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"419\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f26ab21.png\" width=\"252\" \/><\/h5>\n<h5 id=\"\"><\/h5>\n<h5 id=\"%E6%A0%BC%E5%BC%8F2\">\u683c\u5f0f2<\/h5>\n<p>\u521b\u5efa\u6307\u5b9a<span style=\"color:#fe2c24\">\u540d\u5b57<\/span>\u5e76\u4e14\u6307\u5b9a<span style=\"color:#fe2c24\">\u5b57\u7b26\u96c6\u7684\u6570\u636e\u5e93<\/span><\/p>\n<p>\u4e00\u822c\u6307\u5b9autf8<\/p>\n<p>create database\u00a0 \u6570\u636e\u5e93\u540d\u00a0character set\u00a0\u5b57\u7b26\u96c6&#xff1b;<\/p>\n<p>create DATABASE <span style=\"color:#fe2c24\">divdb <\/span>CHARACTER SET <span style=\"color:#fe2c24\">utf8<\/span>; <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"180\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f2773f8.png\" width=\"1411\" \/><\/p>\n<p>\u00a0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"431\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f28f493.png\" width=\"440\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"425\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f29f9f5.png\" width=\"246\" \/><\/p>\n<\/p>\n<h4 id=\"4.%E6%9F%A5%E7%9C%8B%E9%80%89%E6%8B%A9%E6%95%B0%E6%8D%AE%E5%BA%93\">4.\u67e5\u770b\u9009\u62e9\u6570\u636e\u5e93<\/h4>\n<h5 id=\"1%EF%BC%89%E9%80%89%E6%8B%A9%E6%95%B0%E6%8D%AE%E5%BA%93\">1&#xff09;\u9009\u62e9\u6570\u636e\u5e93<\/h5>\n<p>use\u00a0\u6570\u636e\u5e93<\/p>\n<p>use divdb<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"176\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f2ac430.png\" width=\"1419\" \/><\/p>\n<h5 id=\"2%EF%BC%89%E6%9F%A5%E7%9C%8B%E5%BD%93%E5%89%8D%E6%AD%A3%E5%9C%A8%E4%BD%BF%E7%94%A8%E7%9A%84%E6%95%B0%E6%8D%AE%E5%BA%93\">2&#xff09;\u67e5\u770b\u5f53\u524d\u6b63\u5728\u4f7f\u7528\u7684\u6570\u636e\u5e93<\/h5>\n<p>select database(); <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"173\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f2c40f6.png\" width=\"442\" \/><\/p>\n<h5 id=\"3%EF%BC%89%E6%9F%A5%E7%9C%8B%E4%B8%80%E4%B8%AA%E6%95%B0%E6%8D%AE%E5%BA%93%E7%9A%84%E5%AE%9A%E4%B9%89%E4%BF%A1%E6%81%AF\" style=\"background-color:transparent\">3&#xff09;\u67e5\u770b\u4e00\u4e2a\u6570\u636e\u5e93\u7684\u5b9a\u4e49\u4fe1\u606f<\/h5>\n<p>show create database\u00a0\u6570\u636e\u5e93\u540d\u79f0; \u00a0<\/p>\n<p>show create database divdb; <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"142\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f2cf637.png\" width=\"1011\" \/><\/p>\n<p>CREATE DATABASE &#096;divdb&#096; \/*!40100 DEFAULT CHARACTER SET <span style=\"color:#fe2c24\">utf8 <\/span>*\/<\/p>\n<p>\u4e0a\u9762\u6807\u7ea2\u7684\u662f\u6211\u4eec\u521a\u521a\u81ea\u5b9a\u4e49\u5b57\u7b26\u96c6\u7684\u6570\u636e\u5e93utf8;<\/p>\n<\/p>\n<h4 id=\"5.%E4%BF%AE%E6%94%B9%E6%95%B0%E6%8D%AE%E5%BA%93%E7%9A%84%E5%AD%97%E7%AC%A6%E9%9B%86\">5.\u4fee\u6539\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6<\/h4>\n<p>alter database\u00a0\u6570\u636e\u5e93\u540d\u5b57\u00a0character set\u00a0\u5b57\u7b26\u96c6;<\/p>\n<\/p>\n<p>\u67e5\u770bstudydb\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6<\/p>\n<p>show create DATABASE studydb; <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"207\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190314-6841e9f2de151.png\" width=\"1093\" \/>CREATE DATABASE &#096;studydb&#096; \/*!40100 DEFAULT CHARACTER SET u<span style=\"background-color:#ff9900\">tf8 COLLATE utf8_unicode_ci<\/span> *\/<\/p>\n<p>\u4fee\u6539studydb\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6<\/p>\n<p>ALTER DATABASE <span style=\"color:#fe2c24\">studydb <\/span>CHARACTER set <span style=\"color:#fe2c24\">utf8<\/span>; <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"194\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190315-6841e9f30546b.png\" width=\"1413\" \/><\/p>\n<p>\u518d\u6b21\u67e5\u770b\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6<\/p>\n<p>show create DATABASE studydb; <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"176\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190315-6841e9f31ed92.png\" width=\"771\" \/><\/p>\n<p>CREATE DATABASE &#096;studydb&#096; \/*!40100 DEFAULT CHARACTER SET <span style=\"color:#0d0016\"><span style=\"background-color:#ff9900\">utf8 <\/span><\/span>*\/<\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u6a59\u8272\u90e8\u5206\u7684\u4e1c\u897f\u5df2\u7ecf\u88ab\u4fee\u6539\u4e86\u3002<\/p>\n<h4 id=\"6.%E5%88%A0%E9%99%A4%E6%95%B0%E6%8D%AE%E5%BA%93\">6.\u5220\u9664\u6570\u636e\u5e93<\/h4>\n<p>drop database\u00a0\u6570\u636e\u540d<\/p>\n<p>\u4ecemysql\u4e2d\u6c38\u4e45\u5220\u9664\u67d0\u4e2a\u6570\u636e\u5e93<\/p>\n<p>drop database studydb<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"383\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250605190315-6841e9f330f27.png\" width=\"942\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u00a0\u5de6\u8fb9\u7684\u6570\u636e\u5e93\u5217\u8868\u4e2d\u00a0studydb\u6570\u636e\u5e93\u5df2\u7ecf\u88ab\u5220\u9664\u4e86.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.3k\u6b21\uff0c\u70b9\u8d5e32\u6b21\uff0c\u6536\u85cf19\u6b21\u3002mysql\u4e2d\u7684\u6ce8\u91ca\uff1b\u67e5\u770b\u6240\u6709\u7684\u6570\u636e\u5e93\uff1b\u521b\u5efa\u6570\u636e\u5e93\uff1b\u67e5\u770b\u6570\u636e\u5e93\uff1b\u4fee\u5676\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\uff1b\u5220\u9664\u6570\u636e\u5e93;<\/p>\n","protected":false},"author":2,"featured_media":41997,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[114,100],"topic":[],"class_list":["post-42014","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-mysql","tag-100"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>MySql\uff08\u4e8c\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/42014.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MySql\uff08\u4e8c\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" 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