{"id":187216,"date":"2024-11-11T12:25:18","date_gmt":"2024-11-11T04:25:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187216\/"},"modified":"2024-11-11T12:25:19","modified_gmt":"2024-11-11T04:25:19","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a6%96%e5%9c%96%e7%b0%a1%e4%bb%8b-%e7%b0%a1%e8%bf%b0%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a6%96%e5%9c%96%e7%9a%84%e6%a6%82%e5%bf%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187216\/","title":{"rendered":"\u6578\u64da\u5eab\u8996\u5716\u7c21\u4ecb (\u7c21\u8ff0\u6578\u64da\u5eab\u8996\u5716\u7684\u6982\u5ff5)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a6%96%e5%9c%96%e7%b0%a1%e4%bb%8b-YohyUyXzze\">\u6578\u64da\u5eab\u8996\u5716\u7c21\u4ecb<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u8996\u5716\uff08View\uff09\u662f\u4e00\u7a2e\u865b\u64ec\u8868\u683c\uff0c\u5b83\u4e26\u4e0d\u5132\u5b58\u6578\u64da\uff0c\u800c\u662f\u57fa\u65bc\u4e00\u500b\u6216\u591a\u500b\u57fa\u790e\u8868\u683c\u7684\u67e5\u8a62\u7d50\u679c\u3002\u8996\u5716\u7684\u4e3b\u8981\u529f\u80fd\u662f\u7c21\u5316\u6578\u64da\u7684\u8a2a\u554f\uff0c\u63d0\u4f9b\u4e00\u500b\u66f4\u70ba\u6e05\u6670\u7684\u6578\u64da\u7d50\u69cb\uff0c\u4e26\u589e\u5f37\u6578\u64da\u7684\u5b89\u5168\u6027\u3002\u672c\u6587\u5c07\u7c21\u8981\u4ecb\u7d39\u6578\u64da\u5eab\u8996\u5716\u7684\u6982\u5ff5\u3001\u7279\u6027\u53ca\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a6%96%e5%9c%96%ef%bc%9f-YohyUyXzze\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u8996\u5716\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u8996\u5716\u662f\u4e00\u7a2e\u865b\u64ec\u8868\u683c\uff0c\u901a\u904e SQL \u67e5\u8a62\u8a9e\u53e5\u751f\u6210\u3002\u7528\u6236\u53ef\u4ee5\u50cf\u64cd\u4f5c\u666e\u901a\u8868\u683c\u4e00\u6a23\u64cd\u4f5c\u8996\u5716\uff0c\u4f46\u8996\u5716\u672c\u8eab\u4e26\u4e0d\u5132\u5b58\u6578\u64da\u3002\u7576\u7528\u6236\u67e5\u8a62\u8996\u5716\u6642\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u6703\u5373\u6642\u57f7\u884c\u8996\u5716\u6240\u57fa\u65bc\u7684\u67e5\u8a62\uff0c\u4e26\u8fd4\u56de\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e8%a6%96%e5%9c%96%e7%9a%84%e7%89%b9%e6%80%a7-YohyUyXzze\">\u8996\u5716\u7684\u7279\u6027<\/h2>\n<ul>\n<li><strong>\u865b\u64ec\u6027\uff1a<\/strong>\u8996\u5716\u4e0d\u4f54\u7528\u7269\u7406\u5b58\u5132\u7a7a\u9593\uff0c\u56e0\u70ba\u5b83\u5011\u4e0d\u5132\u5b58\u6578\u64da\uff0c\u800c\u662f\u52d5\u614b\u751f\u6210\u3002<\/li>\n<li><strong>\u7c21\u5316\u67e5\u8a62\uff1a<\/strong>\u8996\u5716\u53ef\u4ee5\u5c01\u88dd\u8907\u96dc\u7684\u67e5\u8a62\uff0c\u4f7f\u7528\u6236\u80fd\u5920\u4ee5\u66f4\u7c21\u55ae\u7684\u65b9\u5f0f\u8a2a\u554f\u6578\u64da\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u901a\u904e\u8996\u5716\uff0c\u53ef\u4ee5\u9650\u5236\u7528\u6236\u5c0d\u57fa\u790e\u8868\u683c\u7684\u8a2a\u554f\u6b0a\u9650\uff0c\u53ea\u986f\u793a\u5fc5\u8981\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u53ef\u66f4\u65b0\u6027\uff1a<\/strong>\u67d0\u4e9b\u8996\u5716\u662f\u53ef\u66f4\u65b0\u7684\uff0c\u9019\u610f\u5473\u8457\u7528\u6236\u53ef\u4ee5\u901a\u904e\u8996\u5716\u5c0d\u57fa\u790e\u8868\u683c\u9032\u884c\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a6%96%e5%9c%96%e7%9a%84%e5%89%b5%e5%bb%ba%e8%88%87%e4%bd%bf%e7%94%a8-YohyUyXzze\">\u8996\u5716\u7684\u5275\u5efa\u8207\u4f7f\u7528<\/h2>\n<p>\u5275\u5efa\u8996\u5716\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE VIEW view_name AS\nSELECT column1, column2, ...\nFROM table_name\nWHERE condition;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>employees<\/code> \u7684\u8868\u683c\uff0c\u5305\u542b\u54e1\u5de5\u7684\u8a73\u7d30\u4fe1\u606f\u3002\u5982\u679c\u6211\u5011\u60f3\u5275\u5efa\u4e00\u500b\u53ea\u986f\u793a\u54e1\u5de5\u59d3\u540d\u548c\u90e8\u9580\u7684\u8996\u5716\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>CREATE VIEW employee_department AS\nSELECT name, department\nFROM employees;<\/code><\/pre>\n<p>\u5275\u5efa\u8996\u5716\u5f8c\uff0c\u7528\u6236\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u8996\u5716\u4f86\u7372\u53d6\u6578\u64da\uff1a<\/p>\n<pre><code>SELECT * FROM employee_department;<\/code><\/pre>\n<h2 id=\"%e8%a6%96%e5%9c%96%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-YohyUyXzze\">\u8996\u5716\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u6578\u64da\u5eab\u8996\u5716\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u6574\u5408\uff1a<\/strong>\u5728\u591a\u500b\u8868\u683c\u4e2d\u6574\u5408\u6578\u64da\uff0c\u63d0\u4f9b\u7d71\u4e00\u7684\u6578\u64da\u8996\u5716\u3002<\/li>\n<li><strong>\u5831\u544a\u751f\u6210\uff1a<\/strong>\u7c21\u5316\u5831\u544a\u751f\u6210\u904e\u7a0b\uff0c\u901a\u904e\u8996\u5716\u5feb\u901f\u7372\u53d6\u6240\u9700\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u5b89\u5168\uff1a<\/strong>\u9650\u5236\u7528\u6236\u5c0d\u654f\u611f\u6578\u64da\u7684\u8a2a\u554f\uff0c\u50c5\u986f\u793a\u5fc5\u8981\u7684\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-YohyUyXzze\">\u7e3d\u7d50<\/h2>\n<p>\u6578\u64da\u5eab\u8996\u5716\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u7c21\u5316\u6578\u64da\u8a2a\u554f\u3001\u589e\u5f37\u5b89\u5168\u6027\u4e26\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u901a\u904e\u4f7f\u7528\u8996\u5716\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u66f4\u9748\u6d3b\u5730\u7ba1\u7406\u6578\u64da\uff0c\u4e26\u70ba\u7528\u6236\u63d0\u4f9b\u66f4\u53cb\u597d\u7684\u6578\u64da\u8a2a\u554f\u65b9\u5f0f\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u5982 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u696d\u52d9\u904b\u71df\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u6578\u64da\u5eab\u8996\u5716\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u63a2\u7d22\u5176\u5728\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u4f5c\u7528\u53ca\u512a\u52e2\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\u8207\u5b89\u5168\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-187216","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187216","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=187216"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187216\/revisions"}],"predecessor-version":[{"id":187217,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187216\/revisions\/187217"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}