{"id":172637,"date":"2024-11-07T14:47:17","date_gmt":"2024-11-07T06:47:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172637\/"},"modified":"2024-11-07T14:47:18","modified_gmt":"2024-11-07T06:47:18","slug":"%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e5%af%a6%e4%be%8b%e7%9a%84%e6%95%b8%e9%87%8f%ef%bc%9f-%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9c%89%e5%b9%be%e5%80%8b%e5%af%a6%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172637\/","title":{"rendered":"\u5982\u4f55\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\uff1f (\u67e5\u6578\u64da\u5eab\u6709\u5e7e\u500b\u5be6\u4f8b)"},"content":{"rendered":"

\u5982\u4f55\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\uff1f (\u67e5\u6578\u64da\u5eab\u6709\u5e7e\u500b\u5be6\u4f8b)<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u76e3\u63a7\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u7528\u6236\uff0c\u4e86\u89e3\u81ea\u5df1\u64c1\u6709\u591a\u5c11\u6578\u64da\u5eab\u5be6\u4f8b\u90fd\u662f\u4e00\u9805\u57fa\u672c\u7684\u7ba1\u7406\u4efb\u52d9\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\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\u5be6\u4f8b\uff1f<\/h2>\n

\u6578\u64da\u5eab\u5be6\u4f8b\u662f\u6307\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u4e2d\u904b\u884c\u7684\u6578\u64da\u5eab\u7684\u5177\u9ad4\u5be6\u73fe\u3002\u6bcf\u500b\u5be6\u4f8b\u90fd\u53ef\u4ee5\u5305\u542b\u591a\u500b\u6578\u64da\u5eab\uff0c\u4e26\u4e14\u6bcf\u500b\u6578\u64da\u5eab\u90fd\u53ef\u4ee5\u5b58\u5132\u4e0d\u540c\u7684\u6578\u64da\u3002\u4e86\u89e3\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\u5c0d\u65bc\u8cc7\u6e90\u7ba1\u7406\u3001\u6027\u80fd\u512a\u5316\u548c\u6545\u969c\u6392\u9664\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf<\/h2>\n

\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\u901a\u5e38\u53d6\u6c7a\u65bc\u6240\u4f7f\u7528\u7684\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u53ca\u5176\u67e5\u770b\u5be6\u4f8b\u6578\u91cf\u7684\u65b9\u6cd5\uff1a<\/p>\n

1. MySQL<\/h3>\n

\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u67e5\u770b\u7576\u524d\u7684\u6578\u64da\u5eab\u5be6\u4f8b\uff1a<\/p>\n

SHOW DATABASES;<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u5217\u51fa\u6240\u6709\u53ef\u7528\u7684\u6578\u64da\u5eab\uff0c\u5f9e\u4e2d\u53ef\u4ee5\u8a08\u7b97\u51fa\u5be6\u4f8b\u7684\u6578\u91cf\u3002\u82e5\u8981\u7372\u53d6\u66f4\u8a73\u7d30\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n
SELECT COUNT(*) FROM information_schema.schemata;<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u7576\u524d\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u7e3d\u6578\u3002<\/p>\n
2. PostgreSQL<\/h3>\n
\u5728PostgreSQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\uff1a<\/p>\n
SELECT datname FROM pg_database;<\/code><\/pre>\n
\u9019\u5c07\u5217\u51fa\u6240\u6709\u6578\u64da\u5eab\u7684\u540d\u7a31\u3002\u82e5\u8981\u8a08\u7b97\u5be6\u4f8b\u7684\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n
SELECT COUNT(*) FROM pg_database;<\/code><\/pre>\n
3. Oracle<\/h3>\n
\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u67e5\u770b\u5be6\u4f8b\uff1a<\/p>\n
SELECT COUNT(*) FROM v$database;<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u7576\u524d\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\u3002Oracle\u9084\u63d0\u4f9b\u4e86\u8a31\u591a\u5176\u4ed6\u8996\u5716\uff0c\u53ef\u4ee5\u7528\u4f86\u7372\u53d6\u66f4\u8a73\u7d30\u7684\u6578\u64da\u5eab\u4fe1\u606f\u3002<\/p>\n
4. SQL Server<\/h3>\n
\u5728SQL Server\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u67e5\u770b\u5be6\u4f8b\uff1a<\/p>\n
SELECT COUNT(*) FROM sys.databases;<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u7576\u524dSQL Server\u5be6\u4f8b\u4e2d\u7684\u6578\u64da\u5eab\u6578\u91cf\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u4e86\u89e3\u5982\u4f55\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\u5c0d\u65bc\u6709\u6548\u7684\u6578\u64da\u5eab\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u60a8\u4f7f\u7528\u7684\u662fMySQL\u3001PostgreSQL\u3001Oracle\u9084\u662fSQL Server\uff0c\u4ee5\u4e0a\u63d0\u4f9b\u7684\u65b9\u6cd5\u90fd\u80fd\u5e6b\u52a9\u60a8\u5feb\u901f\u7372\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u96a8\u8457\u6578\u64da\u5eab\u6280\u8853\u7684\u767c\u5c55\uff0c\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u6280\u80fd\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u60a8\u7684\u6578\u64da\u7ba1\u7406\u6548\u7387\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u7528\u6236\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u5982\u4f55\u67e5\u770b\u6578\u64da\u5eab\u5be6\u4f8b\u7684\u6578\u91cf\uff0c\u638c\u63e1\u67e5\u8a62\u65b9\u6cd5\uff0c\u8f15\u9b06\u7372\u53d6\u6578\u64da\u5eab\u4e2d\u5be6\u4f8b\u7684\u8a73\u7d30\u4fe1\u606f\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-172637","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172637","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=172637"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172637\/revisions"}],"predecessor-version":[{"id":172638,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/172637\/revisions\/172638"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=172637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=172637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=172637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}