{"id":186130,"date":"2024-11-11T03:21:25","date_gmt":"2024-11-10T19:21:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186130\/"},"modified":"2024-11-11T03:21:26","modified_gmt":"2024-11-10T19:21:26","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7%ef%bc%9a%e5%bf%ab%e9%80%9f%e6%9f%a5%e7%9c%8b%e8%a1%a8%e4%bf%a1%e6%81%af%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186130\/","title":{"rendered":"\u6578\u64da\u5eab\u8868\u67e5\u8a62\u6280\u5de7\uff1a\u5feb\u901f\u67e5\u770b\u8868\u4fe1\u606f\uff08\u6578\u64da\u5eab\u4e2d\u7684\u8868\u5982\u4f55\u67e5\u770b\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7%ef%bc%9a%e5%bf%ab%e9%80%9f%e6%9f%a5%e7%9c%8b%e8%a1%a8%e4%bf%a1%e6%81%af%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84-NBDnyLjwRu\">\u6578\u64da\u5eab\u8868\u67e5\u8a62\u6280\u5de7\uff1a\u5feb\u901f\u67e5\u770b\u8868\u4fe1\u606f\uff08\u6578\u64da\u5eab\u4e2d\u7684\u8868\u5982\u4f55\u67e5\u770b\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u4e86\u89e3\u5982\u4f55\u5feb\u901f\u67e5\u770b\u8868\u7684\u4fe1\u606f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u9032\u884c\u6578\u64da\u5206\u6790\u3001\u7dad\u8b77\u6578\u64da\u5b8c\u6574\u6027\uff0c\u9084\u662f\u9032\u884c\u6027\u80fd\u512a\u5316\uff0c\u638c\u63e1\u6578\u64da\u5eab\u8868\u7684\u67e5\u8a62\u6280\u5de7\u90fd\u80fd\u5927\u5927\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b\u5e38\u7528\u7684\u6578\u64da\u5eab\u67e5\u8a62\u6280\u5de7\uff0c\u5e6b\u52a9\u60a8\u5feb\u901f\u67e5\u770b\u8868\u4fe1\u606f\u3002<\/p>\n<h2 id=\"1-%e4%bd%bf%e7%94%a8describe%e5%91%bd%e4%bb%a4-NBDnyLjwRu\">1. \u4f7f\u7528DESCRIBE\u547d\u4ee4<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>DESCRIBE<\/code>\u547d\u4ee4\u4f86\u67e5\u770b\u8868\u7684\u7d50\u69cb\u3002\u9019\u500b\u547d\u4ee4\u6703\u986f\u793a\u8868\u4e2d\u6bcf\u4e00\u5217\u7684\u540d\u7a31\u3001\u6578\u64da\u985e\u578b\u3001\u662f\u5426\u53ef\u4ee5\u70baNULL\u3001\u9375\u985e\u578b\u3001\u9ed8\u8a8d\u503c\u7b49\u4fe1\u606f\u3002<\/p>\n<pre><code>DESCRIBE \u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u60f3\u67e5\u770b\u540d\u70ba<code>users<\/code>\u7684\u8868\u7684\u7d50\u69cb\uff0c\u53ef\u4ee5\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>DESCRIBE users;<\/code><\/pre>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8show-columns%e5%91%bd%e4%bb%a4-NBDnyLjwRu\">2. \u4f7f\u7528SHOW COLUMNS\u547d\u4ee4<\/h2>\n<p>\u53e6\u4e00\u500b\u5728MySQL\u4e2d\u67e5\u770b\u8868\u7d50\u69cb\u7684\u547d\u4ee4\u662f<code>SHOW COLUMNS<\/code>\u3002\u9019\u500b\u547d\u4ee4\u7684\u529f\u80fd\u8207<code>DESCRIBE<\/code>\u985e\u4f3c\uff0c\u4f46\u5b83\u7684\u8a9e\u6cd5\u66f4\u70ba\u76f4\u89c0\u3002<\/p>\n<pre><code>SHOW COLUMNS FROM \u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>SHOW COLUMNS FROM users;<\/code><\/pre>\n<h2 id=\"3-%e6%9f%a5%e8%a9%a2information_schema-NBDnyLjwRu\">3. \u67e5\u8a62INFORMATION_SCHEMA<\/h2>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u8a73\u7d30\u7684\u8868\u4fe1\u606f\uff0c\u53ef\u4ee5\u67e5\u8a62<code>INFORMATION_SCHEMA<\/code>\u6578\u64da\u5eab\u3002\u9019\u662f\u4e00\u500b\u865b\u64ec\u6578\u64da\u5eab\uff0c\u5305\u542b\u4e86\u6240\u6709\u6578\u64da\u5eab\u7684\u5143\u6578\u64da\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u7372\u53d6\u7279\u5b9a\u8868\u7684\u8a73\u7d30\u4fe1\u606f\uff1a<\/p>\n<pre><code>SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '\u8868\u540d';<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'users';<\/code><\/pre>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8sql-server%e7%9a%84sp_help%e5%91%bd%e4%bb%a4-NBDnyLjwRu\">4. \u4f7f\u7528SQL Server\u7684sp_help\u547d\u4ee4<\/h2>\n<p>\u5728SQL Server\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>sp_help<\/code>\u5b58\u5132\u904e\u7a0b\u4f86\u67e5\u770b\u8868\u7684\u7d50\u69cb\u548c\u5176\u4ed6\u4fe1\u606f\u3002\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u8868\u7684\u6240\u6709\u5217\u3001\u6578\u64da\u985e\u578b\u3001\u7d22\u5f15\u7b49\u4fe1\u606f\u3002<\/p>\n<pre><code>EXEC sp_help '\u8868\u540d';<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>EXEC sp_help 'users';<\/code><\/pre>\n<h2 id=\"5-%e4%bd%bf%e7%94%a8sqlite%e7%9a%84pragma%e5%91%bd%e4%bb%a4-NBDnyLjwRu\">5. \u4f7f\u7528SQLite\u7684PRAGMA\u547d\u4ee4<\/h2>\n<p>\u5728SQLite\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>PRAGMA table_info(\u8868\u540d);<\/code>\u4f86\u67e5\u770b\u8868\u7684\u7d50\u69cb\u3002\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u8868\u4e2d\u6bcf\u4e00\u5217\u7684\u540d\u7a31\u3001\u6578\u64da\u985e\u578b\u3001\u662f\u5426\u53ef\u4ee5\u70baNULL\u7b49\u4fe1\u606f\u3002<\/p>\n<pre><code>PRAGMA table_info(users);<\/code><\/pre>\n<h2 id=\"6-%e4%bd%bf%e7%94%a8%e5%9c%96%e5%bd%a2%e5%8c%96%e5%b7%a5%e5%85%b7-NBDnyLjwRu\">6. \u4f7f\u7528\u5716\u5f62\u5316\u5de5\u5177<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u8a31\u591a\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u9084\u63d0\u4f9b\u4e86\u5716\u5f62\u5316\u754c\u9762\uff0c\u8b93\u7528\u6236\u53ef\u4ee5\u66f4\u76f4\u89c0\u5730\u67e5\u770b\u8868\u7684\u4fe1\u606f\u3002\u4f8b\u5982\uff0cMySQL Workbench\u3001phpMyAdmin\u548cSQL Server Management Studio\u7b49\u5de5\u5177\u90fd\u63d0\u4f9b\u4e86\u67e5\u770b\u8868\u7d50\u69cb\u7684\u529f\u80fd\u3002\u7528\u6236\u53ea\u9700\u9078\u64c7\u76f8\u61c9\u7684\u8868\uff0c\u5373\u53ef\u67e5\u770b\u5176\u8a73\u7d30\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NBDnyLjwRu\">\u7e3d\u7d50<\/h2>\n<p>\u638c\u63e1\u6578\u64da\u5eab\u8868\u67e5\u8a62\u6280\u5de7\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u548c\u7dad\u8b77\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u9084\u662f\u5716\u5f62\u5316\u754c\u9762\uff0c\u4e86\u89e3\u5982\u4f55\u5feb\u901f\u67e5\u770b\u8868\u7684\u4fe1\u606f\u90fd\u80fd\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002\u5982\u679c\u60a8\u9700\u8981\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u6578\u64da\u5eab\u8868\u67e5\u8a62\u6280\u5de7\uff0c\u5feb\u901f\u67e5\u770b\u8868\u4fe1\u606f\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u8f15\u9b06\u7372\u53d6\u6240\u9700\u6578\u64da\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-186130","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186130","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=186130"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186130\/revisions"}],"predecessor-version":[{"id":186131,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186130\/revisions\/186131"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=186130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=186130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=186130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}