{"id":172819,"date":"2024-11-07T15:19:22","date_gmt":"2024-11-07T07:19:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172819\/"},"modified":"2024-11-07T15:19:23","modified_gmt":"2024-11-07T07:19:23","slug":"%e5%a6%82%e4%bd%95%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e6%89%80%e6%9c%89%e8%a1%a8%e7%b4%a2%e5%bc%95%ef%bc%9f-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e6%89%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172819\/","title":{"rendered":"\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\u7d22\u5f15\uff1f (\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u6240\u6709\u8868\u7d22\u5f15)"},"content":{"rendered":"

\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\u7d22\u5f15\uff1f<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7d22\u5f15\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u6982\u5ff5\u3002\u5b83\u5011\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u6240\u6709\u8868\u7684\u7d22\u5f15\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u904e\u7a0b\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u7d22\u5f15\uff1f<\/h2>\n

\u6578\u64da\u5eab\u7d22\u5f15\u662f\u4e00\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u65e8\u5728\u63d0\u9ad8\u67e5\u8a62\u64cd\u4f5c\u7684\u901f\u5ea6\u3002\u7d22\u5f15\u985e\u4f3c\u65bc\u66f8\u7c4d\u7684\u76ee\u9304\uff0c\u80fd\u5920\u5e6b\u52a9\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u5feb\u901f\u5b9a\u4f4d\u5230\u6240\u9700\u7684\u6578\u64da\u3002\u901a\u904e\u5728\u8868\u7684\u67d0\u4e9b\u5217\u4e0a\u5275\u5efa\u7d22\u5f15\uff0c\u67e5\u8a62\u6027\u80fd\u53ef\u4ee5\u5f97\u5230\u986f\u8457\u63d0\u5347\uff0c\u5c24\u5176\u662f\u5728\u9032\u884c\u7be9\u9078\u3001\u6392\u5e8f\u6216\u806f\u63a5\u64cd\u4f5c\u6642\u3002<\/p>\n

\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u6240\u6709\u8868\u7684\u7d22\u5f15<\/h2>\n

\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08\u5982 MySQL\u3001PostgreSQL\u3001SQL Server \u7b49\uff09\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u65b9\u6cd5\u4f86\u67e5\u8a62\u7d22\u5f15\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u67e5\u8a62\u6240\u6709\u8868\u7d22\u5f15\u7684\u65b9\u5f0f\uff1a<\/p>\n

MySQL<\/h3>\n

\u5728 MySQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u7372\u53d6\u6240\u6709\u8868\u7684\u7d22\u5f15\u4fe1\u606f\uff1a<\/p>\n

SELECT \n    TABLE_NAME, \n    INDEX_NAME, \n    COLUMN_NAME, \n    SEQ_IN_INDEX, \n    NON_UNIQUE \nFROM \n    INFORMATION_SCHEMA.STATISTICS \nWHERE \n    TABLE_SCHEMA = 'your_database_name';<\/code><\/pre>\n
\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u60a8\u9700\u8981\u5c07 ‘your_database_name’ \u66ff\u63db\u70ba\u60a8\u8981\u67e5\u8a62\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002\u67e5\u8a62\u7d50\u679c\u5c07\u986f\u793a\u6240\u6709\u8868\u7684\u7d22\u5f15\u540d\u7a31\u3001\u7d22\u5f15\u4e2d\u7684\u5217\u540d\u3001\u7d22\u5f15\u7684\u9806\u5e8f\u4ee5\u53ca\u8a72\u7d22\u5f15\u662f\u5426\u5141\u8a31\u91cd\u8907\u503c\u3002<\/p>\n
PostgreSQL<\/h3>\n
\u5728 PostgreSQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u7372\u53d6\u7d22\u5f15\u4fe1\u606f\uff1a<\/p>\n
SELECT \n    t.relname AS table_name, \n    i.relname AS index_name, \n    a.attname AS column_name \nFROM \n    pg_index x \nJOIN \n    pg_class t ON t.oid = x.indrelid \nJOIN \n    pg_class i ON i.oid = x.indexrelid \nJOIN \n    pg_attribute a ON a.attnum = ANY(x.indkey) AND a.attrelid = t.oid \nWHERE \n    t.relkind = 'r' AND \n    t.relname = 'your_table_name';<\/code><\/pre>\n
\u9019\u88e1\uff0c\u60a8\u53ef\u4ee5\u5c07 ‘your_table_name’ \u66ff\u63db\u70ba\u7279\u5b9a\u7684\u8868\u540d\uff0c\u4ee5\u7372\u53d6\u8a72\u8868\u7684\u7d22\u5f15\u4fe1\u606f\u3002<\/p>\n
SQL Server<\/h3>\n
\u5728 SQL Server \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u7372\u53d6\u6240\u6709\u8868\u7684\u7d22\u5f15\uff1a<\/p>\n
SELECT \n    t.name AS table_name, \n    i.name AS index_name, \n    c.name AS column_name \nFROM \n    sys.indexes i \nJOIN \n    sys.index_columns ic ON i.object_id = ic.object_id AND i.index_id = ic.index_id \nJOIN \n    sys.columns c ON ic.object_id = c.object_id AND ic.column_id = c.column_id \nJOIN \n    sys.tables t ON i.object_id = t.object_id \nWHERE \n    t.is_ms_shipped = 0;<\/code><\/pre>\n
\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u7528\u6236\u5b9a\u7fa9\u8868\u7684\u7d22\u5f15\u4fe1\u606f\uff0c\u5305\u62ec\u8868\u540d\u3001\u7d22\u5f15\u540d\u548c\u5217\u540d\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u6240\u6709\u8868\u7684\u7d22\u5f15\u662f\u4e00\u500b\u91cd\u8981\u7684\u7ba1\u7406\u4efb\u52d9\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002\u7121\u8ad6\u60a8\u4f7f\u7528\u7684\u662f MySQL\u3001PostgreSQL \u9084\u662f SQL Server\uff0c\u4e86\u89e3\u5982\u4f55\u7372\u53d6\u7d22\u5f15\u4fe1\u606f\u90fd\u662f\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u7684\u95dc\u9375\u6b65\u9a5f\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u6258\u7ba1\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\u7d22\u5f15\uff0c\u638c\u63e1\u6709\u6548\u7ba1\u7406\u548c\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\u7684\u6280\u5de7\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-172819","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172819","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=172819"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172819\/revisions"}],"predecessor-version":[{"id":172820,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172819\/revisions\/172820"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}