{"id":76750,"date":"2024-10-16T09:32:17","date_gmt":"2024-10-16T01:32:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76750\/"},"modified":"2024-10-16T09:32:18","modified_gmt":"2024-10-16T01:32:18","slug":"mysql%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e8%88%87%e7%9b%b8%e6%87%89%e7%9a%84%e5%bb%ba%e5%ba%ab%e7%ad%96%e7%95%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76750\/","title":{"rendered":"MySQL\u6578\u64da\u985e\u578b\u8207\u76f8\u61c9\u7684\u5efa\u5eab\u7b56\u7565"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e8%88%87%e7%9b%b8%e6%87%89%e7%9a%84%e5%bb%ba%e5%ba%ab%e7%ad%96%e7%95%a5-dpRMZEbytr\">MySQL\u6578\u64da\u985e\u578b\u8207\u76f8\u61c9\u7684\u5efa\u5eab\u7b56\u7565<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u5c0d\u65bc\u6578\u64da\u7684\u5b58\u5132\u6548\u7387\u548c\u67e5\u8a62\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u985e\u578b\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0eMySQL\u7684\u4e3b\u8981\u6578\u64da\u985e\u578b\u53ca\u5176\u76f8\u61c9\u7684\u5efa\u5eab\u7b56\u7565\u3002<\/p>\n<h2 id=\"mysql%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e6%a6%82%e8%bf%b0-dpRMZEbytr\">MySQL\u6578\u64da\u985e\u578b\u6982\u8ff0<\/h2>\n<p>MySQL\u7684\u6578\u64da\u985e\u578b\u4e3b\u8981\u5206\u70ba\u4ee5\u4e0b\u5e7e\u985e\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u503c\u985e\u578b\uff1a<\/strong>\u5305\u62ec\u6574\u6578\u985e\u578b\uff08\u5982 TINYINT\u3001SMALLINT\u3001MEDIUMINT\u3001INT\u3001BIGINT\uff09\u548c\u6d6e\u9ede\u6578\u985e\u578b\uff08\u5982 FLOAT\u3001DOUBLE\u3001DECIMAL\uff09\u3002<\/li>\n<li><strong>\u5b57\u7b26\u4e32\u985e\u578b\uff1a<\/strong>\u5305\u62ec CHAR\u3001VARCHAR\u3001TEXT\u3001BLOB \u7b49\u3002CHAR \u548c VARCHAR \u7528\u65bc\u5b58\u5132\u5b57\u7b26\u6578\u64da\uff0c\u800c TEXT \u548c BLOB \u5247\u7528\u65bc\u5b58\u5132\u9577\u6587\u672c\u548c\u4e8c\u9032\u5236\u6578\u64da\u3002<\/li>\n<li><strong>\u65e5\u671f\u548c\u6642\u9593\u985e\u578b\uff1a<\/strong>\u5305\u62ec DATE\u3001TIME\u3001DATETIME\u3001TIMESTAMP \u548c YEAR\u3002\u9019\u4e9b\u985e\u578b\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\u4fe1\u606f\u3002<\/li>\n<li><strong>\u5e03\u723e\u985e\u578b\uff1a<\/strong>\u5728MySQL\u4e2d\uff0c\u5e03\u723e\u503c\u901a\u5e38\u4f7f\u7528 TINYINT(1) \u4f86\u8868\u793a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e7%9a%84%e9%81%b8%e6%93%87%e7%ad%96%e7%95%a5-dpRMZEbytr\">\u6578\u64da\u985e\u578b\u7684\u9078\u64c7\u7b56\u7565<\/h2>\n<p>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u4e26\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9078\u64c7\u6578\u64da\u985e\u578b\u7684\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e6%a0%b9%e6%93%9a%e6%95%b8%e6%93%9a%e7%af%84%e5%9c%8d%e9%81%b8%e6%93%87%e6%95%b4%e6%95%b8%e9%a1%9e%e5%9e%8b-dpRMZEbytr\">1. \u6839\u64da\u6578\u64da\u7bc4\u570d\u9078\u64c7\u6574\u6578\u985e\u578b<\/h3>\n<p>\u5728\u9078\u64c7\u6574\u6578\u985e\u578b\u6642\uff0c\u61c9\u6839\u64da\u6578\u64da\u7684\u7bc4\u570d\u4f86\u9078\u64c7\u5408\u9069\u7684\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5982\u679c\u53ea\u9700\u5b58\u51320\u5230255\u4e4b\u9593\u7684\u6578\u5b57\uff0c\u53ef\u4ee5\u9078\u64c7 TINYINT\uff1b\u5982\u679c\u9700\u8981\u5b58\u5132\u66f4\u5927\u7684\u6578\u5b57\uff0c\u5247\u53ef\u4ee5\u9078\u64c7 INT \u6216 BIGINT\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u7bc0\u7701\u5b58\u5132\u7a7a\u9593\u3002<\/p>\n<pre><code>CREATE TABLE example (\n    id TINYINT UNSIGNED,\n    age INT\n);<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8varchar%e8%80%8c%e9%9d%9echar-dpRMZEbytr\">2. \u4f7f\u7528VARCHAR\u800c\u975eCHAR<\/h3>\n<p>\u5728\u5b58\u5132\u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u7b26\u4e32\u6642\uff0c\u4f7f\u7528 VARCHAR \u800c\u975e CHAR \u53ef\u4ee5\u7bc0\u7701\u7a7a\u9593\u3002CHAR \u662f\u56fa\u5b9a\u9577\u5ea6\u7684\uff0c\u7121\u8ad6\u5be6\u969b\u5b58\u5132\u7684\u5b57\u7b26\u4e32\u9577\u5ea6\u5982\u4f55\uff0c\u5747\u6703\u4f54\u7528\u56fa\u5b9a\u7684\u7a7a\u9593\u3002\u800c VARCHAR \u6703\u6839\u64da\u5be6\u969b\u9577\u5ea6\u4f54\u7528\u7a7a\u9593\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    username VARCHAR(50),\n    password CHAR(64)\n);<\/code><\/pre>\n<h3 id=\"3-%e9%81%a9%e7%95%b6%e4%bd%bf%e7%94%a8text%e5%92%8cblob-dpRMZEbytr\">3. \u9069\u7576\u4f7f\u7528TEXT\u548cBLOB<\/h3>\n<p>\u7576\u9700\u8981\u5b58\u5132\u5927\u91cf\u6587\u672c\u6216\u4e8c\u9032\u5236\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528 TEXT \u6216 BLOB \u985e\u578b\u3002\u9019\u4e9b\u985e\u578b\u9069\u5408\u5b58\u5132\u9577\u6587\u672c\u6216\u5716\u7247\u7b49\u4e8c\u9032\u5236\u6578\u64da\uff0c\u4f46\u5728\u67e5\u8a62\u6642\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u56e0\u6b64\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/p>\n<pre><code>CREATE TABLE articles (\n    title VARCHAR(100),\n    content TEXT\n);<\/code><\/pre>\n<h3 id=\"4-%e6%97%a5%e6%9c%9f%e5%92%8c%e6%99%82%e9%96%93%e7%9a%84%e9%81%b8%e6%93%87-dpRMZEbytr\">4. \u65e5\u671f\u548c\u6642\u9593\u7684\u9078\u64c7<\/h3>\n<p>\u5728\u8655\u7406\u65e5\u671f\u548c\u6642\u9593\u6642\uff0c\u61c9\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5982\u679c\u53ea\u9700\u5b58\u5132\u65e5\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528 DATE\uff1b\u5982\u679c\u9700\u8981\u540c\u6642\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u5247\u61c9\u9078\u64c7 DATETIME\u3002<\/p>\n<pre><code>CREATE TABLE events (\n    event_name VARCHAR(100),\n    event_date DATETIME\n);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-dpRMZEbytr\">\u7e3d\u7d50<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684MySQL\u6578\u64da\u985e\u578b\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u5b58\u5132\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u6839\u64da\u6578\u64da\u7684\u7279\u6027\u548c\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u5efa\u8b70\u4ed4\u7d30\u8003\u616e\u6bcf\u500b\u5b57\u6bb5\u7684\u6578\u64da\u985e\u578b\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6709\u6548\u5b58\u5132\u548c\u5feb\u901f\u67e5\u8a62\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4e0a\u90e8\u7f72MySQL\u6578\u64da\u5eab\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MySQL\u6578\u64da\u985e\u578b\u53ca\u5176\u5efa\u5eab\u7b56\u7565\uff0c\u4e86\u89e3\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u4ee5\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\u548c\u5b58\u5132\u6548\u7387\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-76750","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76750","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=76750"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76750\/revisions"}],"predecessor-version":[{"id":76751,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76750\/revisions\/76751"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}