{"id":142157,"date":"2024-10-31T22:29:21","date_gmt":"2024-10-31T14:29:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/142157\/"},"modified":"2024-10-31T22:29:22","modified_gmt":"2024-10-31T14:29:22","slug":"sql2023-%e8%bf%b7%e4%bd%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a7%a3%e9%8e%96%e6%8a%80%e5%b7%a7%e5%88%86%e4%ba%ab%ef%bc%88%e8%bf%b7%e4%bd%a0-sql2023-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a7%a3%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/142157\/","title":{"rendered":"SQL2023 \u8ff7\u4f60\u6578\u64da\u5eab\u89e3\u9396\u6280\u5de7\u5206\u4eab\uff08\u8ff7\u4f60 sql2023 \u6578\u64da\u5eab\u89e3\u9396\uff09"},"content":{"rendered":"<h1 id=\"sql2023-%e8%bf%b7%e4%bd%a0%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a7%a3%e9%8e%96%e6%8a%80%e5%b7%a7%e5%88%86%e4%ba%ab%ef%bc%88%e8%bf%b7%e4%bd%a0-sql2023-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a7%a3%e9%8e%96%ef%bc%89-skawTHUvXG\">SQL2023 \u8ff7\u4f60\u6578\u64da\u5eab\u89e3\u9396\u6280\u5de7\u5206\u4eab\uff08\u8ff7\u4f60 SQL2023 \u6578\u64da\u5eab\u89e3\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u4f5c\u70ba\u6700\u6d41\u884c\u7684\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u8a00\u4e4b\u4e00\uff0c\u7121\u7591\u662f\u6578\u64da\u5eab\u7ba1\u7406\u7684\u6838\u5fc3\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0cSQL2023\u7248\u672c\u5f15\u5165\u4e86\u8a31\u591a\u65b0\u7279\u6027\u548c\u512a\u5316\uff0c\u9019\u4e9b\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u5eab\u3002\u672c\u6587\u5c07\u5206\u4eab\u4e00\u4e9b\u8ff7\u4f60\u6578\u64da\u5eab\u89e3\u9396\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u5229\u7528SQL2023\u7684\u529f\u80fd\u3002<\/p>\n<h2 id=\"1-%e7%90%86%e8%a7%a3%e6%96%b0%e7%89%b9%e6%80%a7-skawTHUvXG\">1. \u7406\u89e3\u65b0\u7279\u6027<\/h2>\n<p>SQL2023\u7248\u672c\u5f15\u5165\u4e86\u591a\u9805\u65b0\u7279\u6027\uff0c\u5305\u62ec\u589e\u5f37\u7684\u67e5\u8a62\u6027\u80fd\u3001\u6539\u9032\u7684\u6578\u64da\u985e\u578b\u652f\u6301\u4ee5\u53ca\u66f4\u9748\u6d3b\u7684\u6578\u64da\u8655\u7406\u529f\u80fd\u3002\u4e86\u89e3\u9019\u4e9b\u65b0\u7279\u6027\u662f\u89e3\u9396\u6578\u64da\u5eab\u6f5b\u529b\u7684\u7b2c\u4e00\u6b65\u3002\u4f8b\u5982\uff0cSQL2023\u73fe\u5728\u652f\u6301\u66f4\u8907\u96dc\u7684JSON\u6578\u64da\u985e\u578b\uff0c\u9019\u4f7f\u5f97\u8655\u7406\u975e\u7d50\u69cb\u5316\u6578\u64da\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8json%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-skawTHUvXG\">\u793a\u4f8b\uff1a\u4f7f\u7528JSON\u6578\u64da\u985e\u578b<\/h3>\n<pre><code>CREATE TABLE users (\n    id INT PRIMARY KEY,\n    name VARCHAR(100),\n    preferences JSON\n);\n\nINSERT INTO users (id, name, preferences) VALUES\n(1, 'Alice', '{\"theme\": \"dark\", \"notifications\": true}'),\n(2, 'Bob', '{\"theme\": \"light\", \"notifications\": false}');\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u5305\u542bJSON\u6578\u64da\u985e\u578b\u7684\u8868\uff0c\u9019\u6a23\u53ef\u4ee5\u9748\u6d3b\u5730\u5b58\u5132\u7528\u6236\u7684\u504f\u597d\u8a2d\u7f6e\u3002<\/p>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8-skawTHUvXG\">2. \u4f7f\u7528\u7a97\u53e3\u51fd\u6578<\/h2>\n<p>\u7a97\u53e3\u51fd\u6578\u662fSQL2023\u4e2d\u7684\u4e00\u500b\u5f37\u5927\u5de5\u5177\uff0c\u80fd\u5920\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u66f4\u8907\u96dc\u7684\u8a08\u7b97\uff0c\u800c\u4e0d\u9700\u8981\u4f7f\u7528\u5b50\u67e5\u8a62\u3002\u9019\u5c0d\u65bc\u5206\u6790\u6578\u64da\u7279\u5225\u6709\u7528\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e8%a8%88%e7%ae%97%e6%af%8f%e5%80%8b%e7%94%a8%e6%88%b6%e7%9a%84%e8%a8%82%e5%96%ae%e7%b8%bd%e9%a1%8d-skawTHUvXG\">\u793a\u4f8b\uff1a\u8a08\u7b97\u6bcf\u500b\u7528\u6236\u7684\u8a02\u55ae\u7e3d\u984d<\/h3>\n<pre><code>SELECT user_id, \n       SUM(order_amount) OVER (PARTITION BY user_id) AS total_spent\nFROM orders;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u8a08\u7b97\u6bcf\u500b\u7528\u6236\u7684\u8a02\u55ae\u7e3d\u984d\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u591a\u6b21\u67e5\u8a62\u6578\u64da\u5eab\uff0c\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<h2 id=\"3-%e5%84%aa%e5%8c%96%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-skawTHUvXG\">3. \u512a\u5316\u67e5\u8a62\u6027\u80fd<\/h2>\n<p>\u5728SQL2023\u4e2d\uff0c\u67e5\u8a62\u6027\u80fd\u7684\u512a\u5316\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u4f7f\u7528\u7d22\u5f15\u662f\u6bcf\u500b\u958b\u767c\u8005\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e7%b4%a2%e5%bc%95-skawTHUvXG\">\u793a\u4f8b\uff1a\u5275\u5efa\u7d22\u5f15<\/h3>\n<pre><code>CREATE INDEX idx_user_name ON users (name);\n<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u70ba\u7528\u6236\u8868\u7684\u540d\u5b57\u5b57\u6bb5\u5275\u5efa\u4e86\u4e00\u500b\u7d22\u5f15\uff0c\u9019\u6a23\u5728\u67e5\u8a62\u7528\u6236\u6642\u53ef\u4ee5\u66f4\u5feb\u5730\u627e\u5230\u76f8\u95dc\u6578\u64da\u3002<\/p>\n<h2 id=\"4-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ae%89%e5%85%a8%e6%80%a7-skawTHUvXG\">4. \u6578\u64da\u5eab\u5b89\u5168\u6027<\/h2>\n<p>\u96a8\u8457\u6578\u64da\u6cc4\u9732\u4e8b\u4ef6\u7684\u983b\u7e41\u767c\u751f\uff0c\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002SQL2023\u63d0\u4f9b\u4e86\u591a\u7a2e\u5b89\u5168\u529f\u80fd\uff0c\u5305\u62ec\u52a0\u5bc6\u548c\u6b0a\u9650\u7ba1\u7406\u3002\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\u662f\u6bcf\u500b\u958b\u767c\u8005\u7684\u8cac\u4efb\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e8%a8%ad%e7%bd%ae%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-skawTHUvXG\">\u793a\u4f8b\uff1a\u8a2d\u7f6e\u7528\u6236\u6b0a\u9650<\/h3>\n<pre><code>GRANT SELECT, INSERT ON users TO 'readonly_user';\n<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u70ba\u4e00\u500b\u53ea\u8b80\u7528\u6236\u8a2d\u7f6e\u4e86\u67e5\u8a62\u548c\u63d2\u5165\u7684\u6b0a\u9650\uff0c\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u6578\u64da\u7684\u8a2a\u554f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-skawTHUvXG\">\u7e3d\u7d50<\/h2>\n<p>\u638c\u63e1SQL2023\u7684\u8ff7\u4f60\u6578\u64da\u5eab\u89e3\u9396\u6280\u5de7\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002\u5f9e\u7406\u89e3\u65b0\u7279\u6027\u5230\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u9019\u4e9b\u6280\u5de7\u4e0d\u50c5\u80fd\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\uff0c\u9084\u80fd\u589e\u5f37\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\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\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u6578\u64da\u5eab\u7684\u904b\u884c\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 SQL2023 \u8ff7\u4f60\u6578\u64da\u5eab\u89e3\u9396\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u80fd\u529b\uff0c\u8f15\u9b06\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u8207\u512a\u5316\u65b9\u6cd5\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-142157","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142157","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=142157"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142157\/revisions"}],"predecessor-version":[{"id":142158,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/142157\/revisions\/142158"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=142157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=142157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=142157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}