{"id":160811,"date":"2024-11-04T01:12:20","date_gmt":"2024-11-03T17:12:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160811\/"},"modified":"2024-11-04T01:12:21","modified_gmt":"2024-11-03T17:12:21","slug":"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9amysql-%e4%bf%ae%e6%94%b9%e8%a6%96%e5%9c%96%ef%bc%88alter-view%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160811\/","title":{"rendered":"\u8cc7\u6599\u5eab\u6559\u7a0b\uff1aMySQL \u4fee\u6539\u8996\u5716\uff08ALTER VIEW\uff09"},"content":{"rendered":"<h1 id=\"%e8%b3%87%e6%96%99%e5%ba%ab%e6%95%99%e7%a8%8b%ef%bc%9amysql-%e4%bf%ae%e6%94%b9%e8%a6%96%e5%9c%96%ef%bc%88alter-view%ef%bc%89-FWvDcIqVXU\">\u8cc7\u6599\u5eab\u6559\u7a0b\uff1aMySQL \u4fee\u6539\u8996\u5716\uff08ALTER VIEW\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0c\u8996\u5716\uff08View\uff09\u662f\u4e00\u7a2e\u865b\u64ec\u8868\u683c\uff0c\u5b83\u662f\u57fa\u65bc\u4e00\u500b\u6216\u591a\u500b\u8868\u683c\u7684\u67e5\u8a62\u7d50\u679c\u3002\u8996\u5716\u53ef\u4ee5\u7c21\u5316\u8907\u96dc\u7684\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u500b\u5b89\u5168\u7684\u65b9\u5f0f\u4f86\u9650\u5236\u7528\u6236\u5c0d\u5e95\u5c64\u6578\u64da\u7684\u8a2a\u554f\u3002\u5728MySQL\u4e2d\uff0c\u7576\u9700\u8981\u4fee\u6539\u5df2\u5b58\u5728\u7684\u8996\u5716\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528ALTER VIEW\u8a9e\u53e5\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528ALTER VIEW\u4f86\u4fee\u6539\u8996\u5716\u7684\u7d50\u69cb\u548c\u5167\u5bb9\u3002<\/p>\n<h2 id=\"alter-view-%e8%aa%9e%e6%b3%95-FWvDcIqVXU\">ALTER VIEW \u8a9e\u6cd5<\/h2>\n<p>ALTER VIEW\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>ALTER VIEW view_name AS select_statement;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>view_name<\/code>\u662f\u8981\u4fee\u6539\u7684\u8996\u5716\u540d\u7a31\uff0c\u800c<code>select_statement<\/code>\u662f\u65b0\u7684\u67e5\u8a62\u8a9e\u53e5\u3002\u9019\u500b\u8a9e\u53e5\u5c07\u6703\u66ff\u63db\u6389\u539f\u6709\u7684\u8996\u5716\u5b9a\u7fa9\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-alter-view-%e7%9a%84%e6%83%85%e5%a2%83-FWvDcIqVXU\">\u4f7f\u7528 ALTER VIEW \u7684\u60c5\u5883<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u53ef\u80fd\u6703\u6709\u591a\u7a2e\u60c5\u6cc1\u9700\u8981\u4f7f\u7528ALTER VIEW\u4f86\u4fee\u6539\u8996\u5716\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u7576\u5e95\u5c64\u8868\u683c\u7684\u7d50\u69cb\u767c\u751f\u8b8a\u5316\u6642\uff0c\u4f8b\u5982\u65b0\u589e\u6216\u522a\u9664\u5217\u3002<\/li>\n<li>\u7576\u9700\u8981\u6539\u8b8a\u8996\u5716\u7684\u67e5\u8a62\u908f\u8f2f\uff0c\u4ee5\u6eff\u8db3\u65b0\u7684\u696d\u52d9\u9700\u6c42\u3002<\/li>\n<li>\u7576\u9700\u8981\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u901a\u904e\u4fee\u6539\u8996\u5716\u4f86\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%af%84%e4%be%8b%ef%bc%9a%e4%bf%ae%e6%94%b9%e8%a6%96%e5%9c%96-FWvDcIqVXU\">\u7bc4\u4f8b\uff1a\u4fee\u6539\u8996\u5716<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>employee_view<\/code>\u7684\u8996\u5716\uff0c\u5b83\u986f\u793a\u4e86\u6240\u6709\u54e1\u5de5\u7684\u59d3\u540d\u548c\u90e8\u9580\uff1a<\/p>\n<pre><code>CREATE VIEW employee_view AS\nSELECT name, department\nFROM employees;<\/code><\/pre>\n<p>\u73fe\u5728\uff0c\u5982\u679c\u6211\u5011\u60f3\u8981\u5728\u8996\u5716\u4e2d\u6dfb\u52a0\u54e1\u5de5\u7684\u85aa\u6c34\u4fe1\u606f\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528ALTER VIEW\u4f86\u4fee\u6539\u5b83\uff1a<\/p>\n<pre><code>ALTER VIEW employee_view AS\nSELECT name, department, salary\nFROM employees;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c<code>employee_view<\/code>\u8996\u5716\u5c31\u6703\u66f4\u65b0\uff0c\u73fe\u5728\u5b83\u5c07\u986f\u793a\u54e1\u5de5\u7684\u59d3\u540d\u3001\u90e8\u9580\u548c\u85aa\u6c34\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-FWvDcIqVXU\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528ALTER VIEW\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u4fee\u6539\u8996\u5716\u4e0d\u6703\u5f71\u97ff\u5e95\u5c64\u8868\u683c\u7684\u6578\u64da\u3002<\/li>\n<li>\u5982\u679c\u8996\u5716\u4f9d\u8cf4\u65bc\u5176\u4ed6\u8996\u5716\u6216\u8868\u683c\uff0c\u78ba\u4fdd\u9019\u4e9b\u4f9d\u8cf4\u95dc\u4fc2\u5728\u4fee\u6539\u5f8c\u4ecd\u7136\u6709\u6548\u3002<\/li>\n<li>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u6388\u6b0a\u7528\u6236\u5c0d\u4fee\u6539\u5f8c\u7684\u8996\u5716\u7684\u8a2a\u554f\u6b0a\u9650\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-FWvDcIqVXU\">\u7d50\u8ad6<\/h2>\n<p>ALTER VIEW\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u9748\u6d3b\u5730\u4fee\u6539\u8996\u5716\u4ee5\u9069\u61c9\u4e0d\u65b7\u8b8a\u5316\u7684\u9700\u6c42\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528\u9019\u500b\u8a9e\u53e5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u512a\u5316\u8cc7\u6599\u5eab\u67e5\u8a62\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u8cc7\u6599\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\u3002\u6211\u5011\u63d0\u4f9b\u5404\u7a2e<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u5728\u9999\u6e2f\u5efa\u7acb\u7a69\u5b9a\u7684\u4f3a\u670d\u5668\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 MySQL \u7684 ALTER VIEW \u6307\u4ee4\u4f86\u4fee\u6539\u8cc7\u6599\u5eab\u8996\u5716\uff0c\u63d0\u5347\u8cc7\u6599\u7ba1\u7406\u6548\u7387\u8207\u9748\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-160811","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160811","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=160811"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160811\/revisions"}],"predecessor-version":[{"id":160812,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160811\/revisions\/160812"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}