{"id":194923,"date":"2024-11-13T10:42:20","date_gmt":"2024-11-13T02:42:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194923\/"},"modified":"2024-11-13T10:42:21","modified_gmt":"2024-11-13T02:42:21","slug":"%e7%94%a8sql%e6%9f%a5%e8%a9%a2%e6%97%a5-%e6%9c%88-%e5%91%a8-%e5%ad%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194923\/","title":{"rendered":"\u7528SQL\u67e5\u8a62\u65e5 \u6708 \u5468 \u5b63"},"content":{"rendered":"

\u7528SQL\u67e5\u8a62\u65e5\u3001\u6708\u3001\u5468\u3001\u5b63<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u548c\u5206\u6790\u6578\u64da\u3002\u7576\u6d89\u53ca\u5230\u6642\u9593\u548c\u65e5\u671f\u7684\u67e5\u8a62\u6642\uff0cSQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u51fd\u6578\u548c\u65b9\u6cd5\u4f86\u9032\u884c\u65e5\u3001\u6708\u3001\u5468\u548c\u5b63\u7684\u67e5\u8a62\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528SQL\u9032\u884c\u9019\u4e9b\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n

1. \u67e5\u8a62\u65e5<\/h2>\n

\u5728SQL\u4e2d\uff0c\u67e5\u8a62\u7279\u5b9a\u65e5\u671f\u7684\u6578\u64da\u901a\u5e38\u4f7f\u7528WHERE\u5b50\u53e5\u4f86\u904e\u6ffe\u7d50\u679c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u201corders\u201d\u7684\u8868\uff0c\u4e26\u5e0c\u671b\u67e5\u8a622023\u5e7410\u67081\u65e5\u7684\u6240\u6709\u8a02\u55ae\uff1a<\/p>\n

SELECT * FROM orders\nWHERE order_date = '2023-10-01';<\/code><\/pre>\n
\u5982\u679c\u9700\u8981\u67e5\u8a62\u67d0\u500b\u65e5\u671f\u7bc4\u570d\u5167\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528BETWEEN\u95dc\u9375\u5b57\uff1a<\/p>\n
SELECT * FROM orders\nWHERE order_date BETWEEN '2023-10-01' AND '2023-10-31';<\/code><\/pre>\n
2. \u67e5\u8a62\u6708<\/h2>\n
\u8981\u67e5\u8a62\u7279\u5b9a\u6708\u4efd\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528MONTH\u51fd\u6578\u3002\u4ee5\u4e0b\u793a\u4f8b\u67e5\u8a622023\u5e7410\u6708\u7684\u6240\u6709\u8a02\u55ae\uff1a<\/p>\n
SELECT * FROM orders\nWHERE MONTH(order_date) = 10 AND YEAR(order_date) = 2023;<\/code><\/pre>\n
\u5982\u679c\u60f3\u8981\u67e5\u8a62\u6bcf\u500b\u6708\u7684\u8a02\u55ae\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528GROUP BY\u8a9e\u53e5\uff1a<\/p>\n
SELECT MONTH(order_date) AS order_month, COUNT(*) AS total_orders\nFROM orders\nGROUP BY MONTH(order_date);<\/code><\/pre>\n
3. \u67e5\u8a62\u5468<\/h2>\n
\u5728SQL\u4e2d\uff0c\u67e5\u8a62\u7279\u5b9a\u5468\u7684\u6578\u64da\u53ef\u4ee5\u4f7f\u7528WEEK\u51fd\u6578\u3002\u4ee5\u4e0b\u793a\u4f8b\u67e5\u8a622023\u5e74\u7b2c40\u5468\u7684\u6240\u6709\u8a02\u55ae\uff1a<\/p>\n
SELECT * FROM orders\nWHERE WEEK(order_date, 1) = 40 AND YEAR(order_date) = 2023;<\/code><\/pre>\n
\u540c\u6a23\u5730\uff0c\u5982\u679c\u9700\u8981\u67e5\u8a62\u6bcf\u5468\u7684\u8a02\u55ae\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528GROUP BY\u8a9e\u53e5\uff1a<\/p>\n
SELECT WEEK(order_date, 1) AS order_week, COUNT(*) AS total_orders\nFROM orders\nGROUP BY WEEK(order_date, 1);<\/code><\/pre>\n
4. \u67e5\u8a62\u5b63<\/h2>\n
\u67e5\u8a62\u7279\u5b9a\u5b63\u5ea6\u7684\u6578\u64da\u53ef\u4ee5\u901a\u904e\u8a08\u7b97\u6708\u4efd\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u793a\u4f8b\u67e5\u8a622023\u5e74\u7b2c\u4e00\u5b63\u5ea6\u7684\u6240\u6709\u8a02\u55ae\uff1a<\/p>\n
SELECT * FROM orders\nWHERE QUARTER(order_date) = 1 AND YEAR(order_date) = 2023;<\/code><\/pre>\n
\u5982\u679c\u60f3\u8981\u67e5\u8a62\u6bcf\u500b\u5b63\u5ea6\u7684\u8a02\u55ae\u6578\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528GROUP BY\u8a9e\u53e5\uff1a<\/p>\n
SELECT QUARTER(order_date) AS order_quarter, COUNT(*) AS total_orders\nFROM orders\nGROUP BY QUARTER(order_date);<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
\u4f7f\u7528SQL\u67e5\u8a62\u65e5\u3001\u6708\u3001\u5468\u548c\u5b63\u7684\u6578\u64da\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u6280\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u5206\u6790\u92b7\u552e\u8da8\u52e2\u548c\u5ba2\u6236\u884c\u70ba\u3002\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684\u51fd\u6578\u548c\u8a9e\u53e5\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u7121\u8ad6\u662f\u67e5\u8a62\u7279\u5b9a\u65e5\u671f\u7684\u6578\u64da\uff0c\u9084\u662f\u7d71\u8a08\u6bcf\u500b\u6708\u3001\u6bcf\u5468\u6216\u6bcf\u5b63\u5ea6\u7684\u8a02\u55ae\u6578\u91cf\uff0cSQL\u90fd\u80fd\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u6578\u64da\u5eab\u7ba1\u7406\u63d0\u4f9b\u7a69\u5b9a\u7684\u57fa\u790e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f7f\u7528SQL\u67e5\u8a62\u65e5\u3001\u6708\u3001\u5468\u548c\u5b63\u7684\u6578\u64da\uff0c\u8f15\u9b06\u5206\u6790\u6642\u9593\u7bc4\u570d\u5167\u7684\u8da8\u52e2\u548c\u6a21\u5f0f\uff0c\u63d0\u5347\u6578\u64da\u6d1e\u5bdf\u529b\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-194923","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194923","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=194923"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194923\/revisions"}],"predecessor-version":[{"id":194924,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194923\/revisions\/194924"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}