{"id":95956,"date":"2024-10-20T05:24:17","date_gmt":"2024-10-19T21:24:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95956\/"},"modified":"2024-10-20T05:24:17","modified_gmt":"2024-10-19T21:24:17","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%a1%a8%e8%88%87%e8%a6%96%e5%9c%96%e7%9a%84%e6%87%89%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95956\/","title":{"rendered":"Oracle\u6578\u64da\u5eab\u4e2d\u8868\u8207\u8996\u5716\u7684\u61c9\u7528"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%a1%a8%e8%88%87%e8%a6%96%e5%9c%96%e7%9a%84%e6%87%89%e7%94%a8-nHYtsQtMQj\">Oracle\u6578\u64da\u5eab\u4e2d\u8868\u8207\u8996\u5716\u7684\u61c9\u7528<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u8868\u548c\u8996\u5716\u662f\u5169\u500b\u91cd\u8981\u7684\u6982\u5ff5\u3002Oracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u8c50\u5bcc\u7684\u529f\u80fd\u4f86\u652f\u6301\u9019\u4e9b\u6982\u5ff5\u7684\u61c9\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle\u6578\u64da\u5eab\u4e2d\u8868\u8207\u8996\u5716\u7684\u5b9a\u7fa9\u3001\u7279\u6027\u53ca\u5176\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"%e8%a1%a8%e7%9a%84%e5%ae%9a%e7%be%a9%e8%88%87%e7%89%b9%e6%80%a7-nHYtsQtMQj\">\u8868\u7684\u5b9a\u7fa9\u8207\u7279\u6027<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u8868\u662f\u6578\u64da\u7684\u57fa\u672c\u5b58\u5132\u55ae\u4f4d\u3002\u6bcf\u500b\u8868\u7531\u884c\u548c\u5217\u7d44\u6210\uff0c\u884c\u4ee3\u8868\u8a18\u9304\uff0c\u5217\u5247\u4ee3\u8868\u5c6c\u6027\u3002\u8868\u7684\u7d50\u69cb\u7531\u6578\u64da\u985e\u578b\u3001\u7d04\u675f\u689d\u4ef6\u7b49\u5b9a\u7fa9\u3002\u4ee5\u4e0b\u662f\u8868\u7684\u4e00\u4e9b\u4e3b\u8981\u7279\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5b58\u5132\uff1a<\/strong>\u8868\u7528\u65bc\u6301\u4e45\u5316\u5b58\u5132\u6578\u64da\uff0c\u6578\u64da\u53ef\u4ee5\u901a\u904eSQL\u8a9e\u53e5\u9032\u884c\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u3002<\/li>\n<li><strong>\u7d04\u675f\u689d\u4ef6\uff1a<\/strong>\u53ef\u4ee5\u5728\u8868\u4e2d\u5b9a\u7fa9\u4e3b\u9375\u3001\u5916\u9375\u3001\u552f\u4e00\u6027\u7d04\u675f\u7b49\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u7d22\u5f15\u652f\u6301\uff1a<\/strong>\u8868\u53ef\u4ee5\u5efa\u7acb\u7d22\u5f15\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h3 id=\"%e8%a1%a8%e7%9a%84%e5%89%b5%e5%bb%ba%e7%a4%ba%e4%be%8b-nHYtsQtMQj\">\u8868\u7684\u5275\u5efa\u793a\u4f8b<\/h3>\n<pre><code>CREATE TABLE employees (\n    employee_id NUMBER PRIMARY KEY,\n    first_name VARCHAR2(50),\n    last_name VARCHAR2(50),\n    hire_date DATE,\n    salary NUMBER\n);<\/code><\/pre>\n<p>\u4e0a\u8ff0SQL\u8a9e\u53e5\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\uff0c\u5305\u542b\u54e1\u5de5ID\u3001\u540d\u5b57\u3001\u59d3\u6c0f\u3001\u96c7\u7528\u65e5\u671f\u548c\u85aa\u6c34\u7b49\u5b57\u6bb5\u3002<\/p>\n<h2 id=\"%e8%a6%96%e5%9c%96%e7%9a%84%e5%ae%9a%e7%be%a9%e8%88%87%e7%89%b9%e6%80%a7-nHYtsQtMQj\">\u8996\u5716\u7684\u5b9a\u7fa9\u8207\u7279\u6027<\/h2>\n<p>\u8996\u5716\u662f\u57fa\u65bc\u4e00\u500b\u6216\u591a\u500b\u8868\u7684\u865b\u64ec\u8868\u3002\u5b83\u4e0d\u5b58\u5132\u6578\u64da\uff0c\u800c\u662f\u5b58\u5132\u67e5\u8a62\u7684SQL\u8a9e\u53e5\u3002\u8996\u5716\u7684\u4e3b\u8981\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u62bd\u8c61\uff1a<\/strong>\u8996\u5716\u53ef\u4ee5\u96b1\u85cf\u8868\u7684\u8907\u96dc\u6027\uff0c\u63d0\u4f9b\u7c21\u5316\u7684\u6578\u64da\u8996\u5716\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u901a\u904e\u8996\u5716\uff0c\u53ef\u4ee5\u9650\u5236\u7528\u6236\u5c0d\u5e95\u5c64\u8868\u7684\u8a2a\u554f\u6b0a\u9650\u3002<\/li>\n<li><strong>\u6578\u64da\u6574\u5408\uff1a<\/strong>\u8996\u5716\u53ef\u4ee5\u6574\u5408\u4f86\u81ea\u591a\u500b\u8868\u7684\u6578\u64da\uff0c\u63d0\u4f9b\u66f4\u9748\u6d3b\u7684\u67e5\u8a62\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<h3 id=\"%e8%a6%96%e5%9c%96%e7%9a%84%e5%89%b5%e5%bb%ba%e7%a4%ba%e4%be%8b-nHYtsQtMQj\">\u8996\u5716\u7684\u5275\u5efa\u793a\u4f8b<\/h3>\n<pre><code>CREATE VIEW employee_salaries AS\nSELECT first_name, last_name, salary\nFROM employees\nWHERE salary &gt; 50000;<\/code><\/pre>\n<p>\u4e0a\u8ff0SQL\u8a9e\u53e5\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba\u201cemployee_salaries\u201d\u7684\u8996\u5716\uff0c\u8a72\u8996\u5716\u53ea\u986f\u793a\u85aa\u6c34\u9ad8\u65bc50,000\u7684\u54e1\u5de5\u7684\u540d\u5b57\u548c\u85aa\u6c34\u3002<\/p>\n<h2 id=\"%e8%a1%a8%e8%88%87%e8%a6%96%e5%9c%96%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-nHYtsQtMQj\">\u8868\u8207\u8996\u5716\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u8868\u548c\u8996\u5716\u5404\u81ea\u626e\u6f14\u8457\u91cd\u8981\u7684\u89d2\u8272\uff1a<\/p>\n<h3 id=\"%e8%a1%a8%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-nHYtsQtMQj\">\u8868\u7684\u61c9\u7528\u5834\u666f<\/h3>\n<ul>\n<li><strong>\u6578\u64da\u5b58\u5132\uff1a<\/strong>\u8868\u662f\u6240\u6709\u6578\u64da\u7684\u57fa\u790e\uff0c\u9069\u5408\u7528\u65bc\u5b58\u5132\u7d50\u69cb\u5316\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u901a\u904e\u5c0d\u8868\u7684\u67e5\u8a62\uff0c\u53ef\u4ee5\u9032\u884c\u5404\u7a2e\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u751f\u6210\u3002<\/li>\n<\/ul>\n<h3 id=\"%e8%a6%96%e5%9c%96%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-nHYtsQtMQj\">\u8996\u5716\u7684\u61c9\u7528\u5834\u666f<\/h3>\n<ul>\n<li><strong>\u6578\u64da\u5b89\u5168\uff1a<\/strong>\u8996\u5716\u53ef\u4ee5\u9650\u5236\u7528\u6236\u5c0d\u654f\u611f\u6578\u64da\u7684\u8a2a\u554f\uff0c\u589e\u5f37\u6578\u64da\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u7c21\u5316\u67e5\u8a62\uff1a<\/strong>\u8996\u5716\u53ef\u4ee5\u7c21\u5316\u8907\u96dc\u67e5\u8a62\uff0c\u8b93\u7528\u6236\u66f4\u5bb9\u6613\u7372\u53d6\u6240\u9700\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-nHYtsQtMQj\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u8868\u548c\u8996\u5716\u662f\u6578\u64da\u7ba1\u7406\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u8868\u7528\u65bc\u6301\u4e45\u5316\u5b58\u5132\u6578\u64da\uff0c\u800c\u8996\u5716\u5247\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u67e5\u8a62\u548c\u7ba1\u7406\u6578\u64da\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u8868\u548c\u8996\u5716\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u548c\u958b\u767c\u8005\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u696d\u52d9\u4e2d\u6709\u6548\u5229\u7528\u9019\u4e9b\u6280\u8853\u6709\u8208\u8da3\uff0c\u6216\u662f\u9700\u8981\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u6578\u64da\u5eab\u4e2d\u8868\u8207\u8996\u5716\u7684\u61c9\u7528\uff0c\u4e86\u89e3\u5176\u5728\u6578\u64da\u7ba1\u7406\u548c\u67e5\u8a62\u512a\u5316\u4e2d\u7684\u91cd\u8981\u6027\u8207\u5be6\u7528\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-95956","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95956","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=95956"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95956\/revisions"}],"predecessor-version":[{"id":95957,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95956\/revisions\/95957"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95956"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95956"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95956"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}