{"id":171657,"date":"2024-11-07T04:34:17","date_gmt":"2024-11-06T20:34:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171657\/"},"modified":"2024-11-07T04:34:17","modified_gmt":"2024-11-06T20:34:17","slug":"%e8%bc%95%e9%ac%86%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e4%b8%ad%e7%9a%84%e4%bf%a1%e6%81%af%ef%bc%8c%e8%ae%93%e6%82%a8%e8%bc%95%e9%ac%86%e7%86%9f%e7%b7%b4%e6%8e%8c%e6%8f%a1%ef%bc%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171657\/","title":{"rendered":"\u8f15\u9b06\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\uff0c\u8b93\u60a8\u8f15\u9b06\u719f\u7df4\u638c\u63e1\uff01 (\u5982\u4f55\u67e5\u770b\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\u55ce)"},"content":{"rendered":"

\u8f15\u9b06\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\uff0c\u8b93\u60a8\u8f15\u9b06\u719f\u7df4\u638c\u63e1\uff01<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u6210\u70ba\u4e86\u4f01\u696d\u548c\u958b\u767c\u8005\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002\u7121\u8ad6\u662f\u7528\u65bc\u5b58\u5132\u7528\u6236\u4fe1\u606f\u3001\u4ea4\u6613\u8a18\u9304\u9084\u662f\u7522\u54c1\u6578\u64da\uff0c\u6578\u64da\u5eab\u7684\u6709\u6548\u7ba1\u7406\u548c\u67e5\u8a62\u80fd\u529b\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u8f15\u9b06\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\uff0c\u5e6b\u52a9\u60a8\u719f\u7df4\u638c\u63e1\u9019\u4e00\u6280\u80fd\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u8868\uff1f<\/h2>\n

\u6578\u64da\u5eab\u8868\u662f\u6578\u64da\u5eab\u4e2d\u7528\u4f86\u5b58\u5132\u6578\u64da\u7684\u57fa\u672c\u7d50\u69cb\u3002\u6bcf\u500b\u8868\u7531\u884c\u548c\u5217\u7d44\u6210\uff0c\u5176\u4e2d\u884c\u4ee3\u8868\u8a18\u9304\uff0c\u5217\u5247\u4ee3\u8868\u5b57\u6bb5\u3002\u8209\u4f8b\u4f86\u8aaa\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba\u201c\u7528\u6236\u201d\u7684\u8868\uff0c\u53ef\u80fd\u5305\u542b\u4ee5\u4e0b\u5217\uff1a\u7528\u6236ID\u3001\u7528\u6236\u540d\u3001\u96fb\u5b50\u90f5\u4ef6\u548c\u8a3b\u518a\u65e5\u671f\u3002<\/p>\n

\u5982\u4f55\u67e5\u770b\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f<\/h2>\n

\u8981\u67e5\u770b\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\uff0c\u60a8\u9700\u8981\u4f7f\u7528\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff08SQL\uff09\u3002SQL\u662f\u4e00\u7a2e\u5c08\u9580\u7528\u65bc\u7ba1\u7406\u548c\u64cd\u4f5c\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u8a9e\u8a00\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684SQL\u67e5\u8a62\u8a9e\u53e5\uff0c\u5e6b\u52a9\u60a8\u958b\u59cb\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\u3002<\/p>\n

1. \u9023\u63a5\u5230\u6578\u64da\u5eab<\/h3>\n

\u5728\u57f7\u884c\u4efb\u4f55\u67e5\u8a62\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u5148\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u9019\u901a\u5e38\u901a\u904e\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u4f86\u5b8c\u6210\uff0c\u4f8b\u5982MySQL\u3001PostgreSQL\u6216SQLite\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528MySQL\u7684\u9023\u63a5\u793a\u4f8b\uff1a<\/p>\n

mysql -u username -p\n<\/code><\/pre>\n
\u8f38\u5165\u60a8\u7684\u7528\u6236\u540d\u548c\u5bc6\u78bc\u5f8c\uff0c\u60a8\u5c07\u9032\u5165MySQL\u547d\u4ee4\u884c\u754c\u9762\u3002<\/p>\n
2. \u67e5\u770b\u6240\u6709\u6578\u64da\u5eab<\/h3>\n
\u9023\u63a5\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u6240\u6709\u53ef\u7528\u7684\u6578\u64da\u5eab\uff1a<\/p>\n
SHOW DATABASES;\n<\/code><\/pre>\n
3. \u9078\u64c7\u6578\u64da\u5eab<\/h3>\n
\u9078\u64c7\u60a8\u8981\u67e5\u8a62\u7684\u6578\u64da\u5eab\uff0c\u4f8b\u5982\uff1a<\/p>\n
USE database_name;\n<\/code><\/pre>\n
4. \u67e5\u770b\u6240\u6709\u8868<\/h3>\n
\u5728\u9078\u64c7\u6578\u64da\u5eab\u5f8c\uff0c\u60a8\u53ef\u4ee5\u67e5\u770b\u8a72\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\uff1a<\/p>\n
SHOW TABLES;\n<\/code><\/pre>\n
5. \u67e5\u8a62\u8868\u4e2d\u7684\u6578\u64da<\/h3>\n
\u8981\u67e5\u8a62\u7279\u5b9a\u8868\u4e2d\u7684\u6578\u64da\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528SELECT\u8a9e\u53e5\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u201c\u7528\u6236\u201d\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff1a<\/p>\n
SELECT * FROM users;\n<\/code><\/pre>\n
\u9019\u689d\u8a9e\u53e5\u5c07\u8fd4\u56de\u201c\u7528\u6236\u201d\u8868\u4e2d\u7684\u6240\u6709\u884c\u548c\u5217\u3002<\/p>\n
6. \u67e5\u8a62\u7279\u5b9a\u5b57\u6bb5<\/h3>\n
\u5982\u679c\u60a8\u53ea\u60f3\u67e5\u770b\u7279\u5b9a\u7684\u5b57\u6bb5\uff0c\u53ef\u4ee5\u6307\u5b9a\u5b57\u6bb5\u540d\u7a31\u3002\u4f8b\u5982\uff0c\u50c5\u67e5\u8a62\u7528\u6236\u540d\u548c\u96fb\u5b50\u90f5\u4ef6\uff1a<\/p>\n
SELECT username, email FROM users;\n<\/code><\/pre>\n
7. \u4f7f\u7528\u689d\u4ef6\u67e5\u8a62<\/h3>\n
\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528WHERE\u5b50\u53e5\u4f86\u904e\u6ffe\u7d50\u679c\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u8a3b\u518a\u65e5\u671f\u57282023\u5e74\u4ee5\u5f8c\u7684\u7528\u6236\uff1a<\/p>\n
SELECT * FROM users WHERE registration_date > '2023-01-01';\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u638c\u63e1\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\u662f\u6bcf\u4f4d\u958b\u767c\u8005\u548c\u6578\u64da\u5206\u6790\u5e2b\u5fc5\u5099\u7684\u6280\u80fd\u3002\u901a\u904e\u4f7f\u7528SQL\u8a9e\u8a00\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6240\u9700\u7684\u4fe1\u606f\uff0c\u9032\u884c\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u3002\u7121\u8ad6\u60a8\u662f\u4f7f\u7528MySQL\u3001PostgreSQL\u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u9019\u4e9b\u57fa\u672c\u7684\u67e5\u8a62\u6280\u5de7\u90fd\u5c07\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u6258\u7ba1\u60a8\u7684\u6578\u64da\u5eab\u3002\u900f\u904e\u7a69\u5b9a\u7684\u4f3a\u670d\u5668\u548c\u9748\u6d3b\u7684\u914d\u7f6e\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u7ba1\u7406\u548c\u67e5\u8a62\u60a8\u7684\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8f15\u9b06\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u4fe1\u606f\uff0c\u638c\u63e1\u6280\u5de7\uff0c\u8b93\u60a8\u5feb\u901f\u7372\u53d6\u6240\u9700\u6578\u64da\uff0c\u63d0\u5347\u5de5\u4f5c\u6548\u7387\uff01<\/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-171657","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171657","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=171657"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171657\/revisions"}],"predecessor-version":[{"id":171658,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171657\/revisions\/171658"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=171657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=171657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=171657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}