{"id":175289,"date":"2024-11-08T04:37:18","date_gmt":"2024-11-07T20:37:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175289\/"},"modified":"2024-11-08T04:37:19","modified_gmt":"2024-11-07T20:37:19","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8oracle%e8%aa%9e%e5%8f%a5%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e8%a1%a8-oracle-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9c%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175289\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Oracle\u8a9e\u53e5\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868 (oracle \u67e5\u8a62\u6578\u64da\u5eab\u6709\u54ea\u4e9b\u8868)"},"content":{"rendered":"

\u5982\u4f55\u4f7f\u7528Oracle\u8a9e\u53e5\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868<\/h1>\n

\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u6642\uff0c\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868\u662f\u4e00\u9805\u57fa\u672c\u800c\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u7121\u8ad6\u662f\u9032\u884c\u6578\u64da\u5206\u6790\u3001\u5831\u544a\u751f\u6210\uff0c\u9084\u662f\u65e5\u5e38\u7684\u6578\u64da\u7ba1\u7406\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868\u90fd\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Oracle\u8a9e\u53e5\u4f86\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n

Oracle\u6578\u64da\u5eab\u4e2d\u7684\u8868\u6982\u8ff0<\/h2>\n

\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u8868\u662f\u7528\u4f86\u5b58\u5132\u6578\u64da\u7684\u57fa\u672c\u7d50\u69cb\u3002\u6bcf\u500b\u8868\u7531\u884c\u548c\u5217\u7d44\u6210\uff0c\u884c\u4ee3\u8868\u6578\u64da\u8a18\u9304\uff0c\u5217\u5247\u4ee3\u8868\u6578\u64da\u7684\u5c6c\u6027\u3002\u8981\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3\u6578\u64da\u5eab\u7684\u7d50\u69cb\u548c\u8868\u7684\u57fa\u672c\u4fe1\u606f\u3002<\/p>\n

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

\u8981\u67e5\u8a62Oracle\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n

SELECT table_name \nFROM user_tables;<\/code><\/pre>\n
\u9019\u689d\u8a9e\u53e5\u5c07\u8fd4\u56de\u7576\u524d\u7528\u6236\u64c1\u6709\u7684\u6240\u6709\u8868\u7684\u540d\u7a31\u3002\u5982\u679c\u60a8\u60f3\u67e5\u8a62\u6240\u6709\u7528\u6236\u7684\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
SELECT table_name \nFROM all_tables;<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u6240\u6709\u7528\u6236\u7684\u8868\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u76f8\u61c9\u7684\u6b0a\u9650\u4f86\u67e5\u770b\u5176\u4ed6\u7528\u6236\u7684\u8868\u3002<\/p>\n
\u67e5\u8a62\u7279\u5b9a\u8868\u7684\u7d50\u69cb<\/h2>\n
\u5982\u679c\u60a8\u60f3\u67e5\u770b\u7279\u5b9a\u8868\u7684\u7d50\u69cb\uff08\u5373\u5217\u7684\u540d\u7a31\u548c\u6578\u64da\u985e\u578b\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
DESCRIBE table_name;<\/code><\/pre>\n
\u5c07 table_name<\/code> \u66ff\u63db\u70ba\u60a8\u8981\u67e5\u8a62\u7684\u8868\u540d\u3002\u9019\u689d\u8a9e\u53e5\u5c07\u986f\u793a\u8a72\u8868\u7684\u6240\u6709\u5217\u53ca\u5176\u6578\u64da\u985e\u578b\u3002<\/p>\n
\u67e5\u8a62\u8868\u4e2d\u7684\u6578\u64da<\/h2>\n
\u8981\u67e5\u8a62\u7279\u5b9a\u8868\u4e2d\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 SELECT<\/code> \u8a9e\u53e5\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u540d\u70ba employees<\/code> \u7684\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff1a<\/p>\n
SELECT * \nFROM employees;<\/code><\/pre>\n
\u5982\u679c\u60a8\u53ea\u60f3\u67e5\u8a62\u7279\u5b9a\u7684\u5217\uff0c\u53ef\u4ee5\u6307\u5b9a\u5217\u540d\uff1a<\/p>\n
SELECT first_name, last_name \nFROM employees;<\/code><\/pre>\n
\u4f7f\u7528\u689d\u4ef6\u67e5\u8a62\u6578\u64da<\/h2>\n
\u5728\u67e5\u8a62\u6578\u64da\u6642\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 WHERE<\/code> \u5b50\u53e5\u4f86\u6dfb\u52a0\u689d\u4ef6\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u6240\u6709\u59d3\u6c0f\u70ba “Smith” \u7684\u54e1\u5de5\uff1a<\/p>\n
SELECT * \nFROM employees \nWHERE last_name = 'Smith';<\/code><\/pre>\n
\u67e5\u8a62\u8868\u7684\u5143\u6578\u64da<\/h2>\n
\u9664\u4e86\u67e5\u8a62\u8868\u4e2d\u7684\u6578\u64da\u5916\uff0c\u60a8\u9084\u53ef\u4ee5\u67e5\u8a62\u8868\u7684\u5143\u6578\u64da\uff0c\u4f8b\u5982\u8868\u7684\u5275\u5efa\u6642\u9593\u3001\u6700\u5f8c\u4fee\u6539\u6642\u9593\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\u67e5\u8a62\u8868\u7684\u8a73\u7d30\u4fe1\u606f\uff1a<\/p>\n
SELECT * \nFROM user_tab_comments \nWHERE table_name = 'EMPLOYEES';<\/code><\/pre>\n
\u9019\u5c07\u8fd4\u56de\u6709\u95dc employees<\/code> \u8868\u7684\u8a3b\u91cb\u548c\u5143\u6578\u64da\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u5728Oracle\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u8868\u662f\u4e00\u9805\u57fa\u672c\u6280\u80fd\uff0c\u638c\u63e1\u9019\u4e9b\u67e5\u8a62\u8a9e\u53e5\u53ef\u4ee5\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u5206\u6790\u6578\u64da\u3002\u7121\u8ad6\u662f\u67e5\u8a62\u6240\u6709\u8868\u3001\u67e5\u770b\u7279\u5b9a\u8868\u7684\u7d50\u69cb\uff0c\u9084\u662f\u67e5\u8a62\u8868\u4e2d\u7684\u6578\u64da\uff0c\u9019\u4e9b\u64cd\u4f5c\u90fd\u662f\u65e5\u5e38\u6578\u64da\u7ba1\u7406\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u904b\u884c\u60a8\u7684\u6578\u64da\u5eab\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Oracle\u8a9e\u53e5\u67e5\u8a62\u6578\u64da\u5eab\u4e2d\u7684\u8868\uff0c\u5feb\u901f\u7372\u53d6\u6578\u64da\u5eab\u7d50\u69cb\u548c\u8868\u4fe1\u606f\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\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-175289","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175289","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=175289"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175289\/revisions"}],"predecessor-version":[{"id":175290,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175289\/revisions\/175290"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}