{"id":93862,"date":"2024-10-19T17:32:15","date_gmt":"2024-10-19T09:32:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/93862\/"},"modified":"2024-10-19T17:32:16","modified_gmt":"2024-10-19T09:32:16","slug":"oracle-case%e7%9a%842%e7%a8%ae%e5%b8%b8%e7%94%a8%e8%a1%a8%e9%81%94%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/93862\/","title":{"rendered":"Oracle case\u76842\u7a2e\u5e38\u7528\u8868\u9054\u5f0f"},"content":{"rendered":"<h1 id=\"oracle-case%e7%9a%842%e7%a8%ae%e5%b8%b8%e7%94%a8%e8%a1%a8%e9%81%94%e5%bc%8f-IzSQaJaAme\">Oracle Case\u76842\u7a2e\u5e38\u7528\u8868\u9054\u5f0f<\/h1>\n<p>\u5728Oracle\u8cc7\u6599\u5eab\u4e2d\uff0c\u8868\u9054\u5f0f\u662f\u7528\u4f86\u8a08\u7b97\u503c\u7684\u7d44\u5408\uff0c\u9019\u4e9b\u503c\u53ef\u4ee5\u662f\u5e38\u6578\u3001\u8b8a\u6578\u6216\u5176\u4ed6\u8868\u9054\u5f0f\u7684\u7d50\u679c\u3002\u8868\u9054\u5f0f\u7684\u4f7f\u7528\u5728SQL\u67e5\u8a62\u4e2d\u975e\u5e38\u666e\u904d\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u9032\u884c\u6578\u64da\u7684\u7be9\u9078\u3001\u8a08\u7b97\u548c\u8f49\u63db\u3002\u672c\u6587\u5c07\u4ecb\u7d39Oracle\u4e2d\u5169\u7a2e\u5e38\u7528\u7684\u8868\u9054\u5f0f\uff1a\u7b97\u8853\u8868\u9054\u5f0f\u548c\u908f\u8f2f\u8868\u9054\u5f0f\u3002<\/p>\n<h2 id=\"1-%e7%ae%97%e8%a1%93%e8%a1%a8%e9%81%94%e5%bc%8f-IzSQaJaAme\">1. \u7b97\u8853\u8868\u9054\u5f0f<\/h2>\n<p>\u7b97\u8853\u8868\u9054\u5f0f\u662f\u7528\u4f86\u9032\u884c\u6578\u5b78\u8a08\u7b97\u7684\u8868\u9054\u5f0f\uff0c\u901a\u5e38\u6d89\u53ca\u52a0\u6cd5\u3001\u6e1b\u6cd5\u3001\u4e58\u6cd5\u548c\u9664\u6cd5\u7b49\u904b\u7b97\u3002\u9019\u4e9b\u8868\u9054\u5f0f\u53ef\u4ee5\u7528\u65bc\u8a08\u7b97\u6578\u503c\u578b\u8cc7\u6599\u7684\u7e3d\u548c\u3001\u5e73\u5747\u503c\u7b49\u3002<\/p>\n<h3 id=\"1-1-%e5%9f%ba%e6%9c%ac%e9%81%8b%e7%ae%97%e7%ac%a6-IzSQaJaAme\">1.1 \u57fa\u672c\u904b\u7b97\u7b26<\/h3>\n<ul>\n<li><code>+<\/code>\uff1a\u52a0\u6cd5<\/li>\n<li><code>-<\/code>\uff1a\u6e1b\u6cd5<\/li>\n<li><code>*<\/code>\uff1a\u4e58\u6cd5<\/li>\n<li><code>\/<\/code>\uff1a\u9664\u6cd5<\/li>\n<li><code>MOD<\/code>\uff1a\u53d6\u9918\u6578<\/li>\n<\/ul>\n<h3 id=\"1-2-%e7%a4%ba%e4%be%8b-IzSQaJaAme\">1.2 \u793a\u4f8b<\/h3>\n<p>\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba<code>employees<\/code>\u7684\u8868\u683c\uff0c\u5305\u542b<code>salary<\/code>\u548c<code>bonus<\/code>\u5169\u500b\u6b04\u4f4d\uff0c\u82e5\u8981\u8a08\u7b97\u6bcf\u4f4d\u54e1\u5de5\u7684\u7e3d\u6536\u5165\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT employee_id, salary + bonus AS total_income\nFROM employees;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c<code>salary + bonus<\/code>\u5c31\u662f\u4e00\u500b\u7b97\u8853\u8868\u9054\u5f0f\uff0c\u8a08\u7b97\u6bcf\u4f4d\u54e1\u5de5\u7684\u7e3d\u6536\u5165\u4e26\u5c07\u7d50\u679c\u547d\u540d\u70ba<code>total_income<\/code>\u3002<\/p>\n<h2 id=\"2-%e9%82%8f%e8%bc%af%e8%a1%a8%e9%81%94%e5%bc%8f-IzSQaJaAme\">2. \u908f\u8f2f\u8868\u9054\u5f0f<\/h2>\n<p>\u908f\u8f2f\u8868\u9054\u5f0f\u7528\u65bc\u8a55\u4f30\u689d\u4ef6\uff0c\u8fd4\u56de\u5e03\u6797\u503c\uff08\u771f\u6216\u5047\uff09\u3002\u9019\u4e9b\u8868\u9054\u5f0f\u901a\u5e38\u7528\u65bc<code>WHERE<\/code>\u5b50\u53e5\u4e2d\uff0c\u4ee5\u7be9\u9078\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u8a18\u9304\u3002<\/p>\n<h3 id=\"2-1-%e5%9f%ba%e6%9c%ac%e9%82%8f%e8%bc%af%e9%81%8b%e7%ae%97%e7%ac%a6-IzSQaJaAme\">2.1 \u57fa\u672c\u908f\u8f2f\u904b\u7b97\u7b26<\/h3>\n<ul>\n<li><code>AND<\/code>\uff1a\u908f\u8f2f\u8207<\/li>\n<li><code>OR<\/code>\uff1a\u908f\u8f2f\u6216<\/li>\n<li><code>NOT<\/code>\uff1a\u908f\u8f2f\u975e<\/li>\n<\/ul>\n<h3 id=\"2-2-%e7%a4%ba%e4%be%8b-IzSQaJaAme\">2.2 \u793a\u4f8b<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u5e0c\u671b\u67e5\u8a62\u6240\u6709\u85aa\u6c34\u9ad8\u65bc50000\u4e14\u7372\u5f97\u734e\u91d1\u7684\u54e1\u5de5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT employee_id, salary, bonus\nFROM employees\nWHERE salary &gt; 50000 AND bonus &gt; 0;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c<code>salary &gt; 50000 AND bonus &gt; 0<\/code>\u662f\u4e00\u500b\u908f\u8f2f\u8868\u9054\u5f0f\uff0c\u53ea\u6709\u7576\u5169\u500b\u689d\u4ef6\u90fd\u70ba\u771f\u6642\uff0c\u8a72\u8a18\u9304\u624d\u6703\u88ab\u9078\u4e2d\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-IzSQaJaAme\">\u7d50\u8ad6<\/h2>\n<p>\u5728Oracle\u8cc7\u6599\u5eab\u4e2d\uff0c\u7b97\u8853\u8868\u9054\u5f0f\u548c\u908f\u8f2f\u8868\u9054\u5f0f\u662f\u9032\u884c\u6578\u64da\u64cd\u4f5c\u548c\u67e5\u8a62\u7684\u57fa\u672c\u5de5\u5177\u3002\u900f\u904e\u9019\u4e9b\u8868\u9054\u5f0f\uff0c\u7528\u6236\u53ef\u4ee5\u9748\u6d3b\u5730\u8a08\u7b97\u548c\u7be9\u9078\u6578\u64da\uff0c\u5f9e\u800c\u7372\u5f97\u6240\u9700\u7684\u4fe1\u606f\u3002\u7121\u8ad6\u662f\u5728\u65e5\u5e38\u7684\u6578\u64da\u5206\u6790\u9084\u662f\u8907\u96dc\u7684\u5831\u544a\u751f\u6210\u4e2d\uff0c\u638c\u63e1\u9019\u4e9b\u8868\u9054\u5f0f\u7684\u4f7f\u7528\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u548c<code>\u9999\u6e2f\u4f3a\u670d\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u6848\u4f8b\u4e2d\u7684\u4e24\u79cd\u5e38\u7528\u8868\u8fbe\u5f0f\uff0c\u4e86\u89e3\u5b83\u4eec\u7684\u5e94\u7528\u548c\u4f18\u52bf\uff0c\u63d0\u5347\u6570\u636e\u5e93\u67e5\u8be2\u6548\u7387\u4e0e\u7075\u6d3b\u6027\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-93862","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93862","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=93862"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93862\/revisions"}],"predecessor-version":[{"id":93863,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93862\/revisions\/93863"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=93862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=93862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=93862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}