{"id":143755,"date":"2024-11-01T00:58:20","date_gmt":"2024-10-31T16:58:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/143755\/"},"modified":"2024-11-01T00:58:21","modified_gmt":"2024-10-31T16:58:21","slug":"sql-%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7%ef%bc%9a%e6%97%a5%e6%9c%9f%e5%8d%80%e9%96%93%e6%9f%a5%e8%a9%a2%e6%96%b9%e6%b3%95%ef%bc%88%e5%a6%82%e4%bd%95%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/143755\/","title":{"rendered":"SQL \u67e5\u8a62\u6280\u5de7\uff1a\u65e5\u671f\u5340\u9593\u67e5\u8a62\u65b9\u6cd5\uff08\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u65e5\u671f\u5340\u9593\uff09"},"content":{"rendered":"

SQL \u67e5\u8a62\u6280\u5de7\uff1a\u65e5\u671f\u5340\u9593\u67e5\u8a62\u65b9\u6cd5\uff08\u5982\u4f55\u67e5\u8a62\u6578\u64da\u5eab\u8868\u4e2d\u7684\u65e5\u671f\u5340\u9593\uff09<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u65e5\u671f\u67e5\u8a62\u662f\u4e00\u500b\u5e38\u898b\u4e14\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u7121\u8ad6\u662f\u5206\u6790\u92b7\u552e\u6578\u64da\u3001\u7528\u6236\u6d3b\u52d5\u9084\u662f\u5176\u4ed6\u6642\u9593\u76f8\u95dc\u7684\u6578\u64da\uff0c\u638c\u63e1\u65e5\u671f\u5340\u9593\u67e5\u8a62\u7684\u6280\u5de7\u90fd\u80fd\u5e6b\u52a9\u6211\u5011\u66f4\u6709\u6548\u5730\u63d0\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 SQL \u4e2d\u9032\u884c\u65e5\u671f\u5340\u9593\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u6280\u5de7\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u65e5\u671f\u5340\u9593\u67e5\u8a62\uff1f<\/h2>\n

\u65e5\u671f\u5340\u9593\u67e5\u8a62\u662f\u6307\u5728\u7279\u5b9a\u7684\u65e5\u671f\u7bc4\u570d\u5167\u6aa2\u7d22\u6578\u64da\u7684\u904e\u7a0b\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528 SQL \u7684 WHERE<\/code> \u5b50\u53e5\u4f86\u6307\u5b9a\u4e00\u500b\u958b\u59cb\u65e5\u671f\u548c\u7d50\u675f\u65e5\u671f\u3002\u9019\u7a2e\u67e5\u8a62\u65b9\u5f0f\u5728\u8a31\u591a\u61c9\u7528\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u67e5\u8a62\u67d0\u4e00\u6642\u9593\u6bb5\u5167\u7684\u8a02\u55ae\u3001\u7528\u6236\u8a3b\u518a\u6216\u5176\u4ed6\u4e8b\u4ef6\u3002<\/p>\n

\u57fa\u672c\u7684\u65e5\u671f\u5340\u9593\u67e5\u8a62\u8a9e\u6cd5<\/h2>\n

\u5728 SQL \u4e2d\uff0c\u9032\u884c\u65e5\u671f\u5340\u9593\u67e5\u8a62\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

SELECT * FROM \u8868\u540d\nWHERE \u65e5\u671f\u6b04\u4f4d BETWEEN '\u958b\u59cb\u65e5\u671f' AND '\u7d50\u675f\u65e5\u671f';<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0cBETWEEN<\/code> \u95dc\u9375\u5b57\u7528\u65bc\u6307\u5b9a\u65e5\u671f\u7bc4\u570d\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cBETWEEN<\/code> \u5305\u542b\u4e86\u958b\u59cb\u548c\u7d50\u675f\u65e5\u671f\u3002<\/p>\n
\u7bc4\u4f8b<\/h3>\n
\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba orders<\/code> \u7684\u8868\uff0c\u8a72\u8868\u5305\u542b\u4e86\u8a02\u55ae\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u5305\u62ec\u8a02\u55ae\u65e5\u671f\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62 2023 \u5e74 1 \u6708 1 \u65e5\u81f3 2023 \u5e74 1 \u6708 31 \u65e5\u4e4b\u9593\u6240\u6709\u8a02\u55ae\u7684 SQL \u8a9e\u53e5\uff1a<\/p>\n
SELECT * FROM orders\nWHERE order_date BETWEEN '2023-01-01' AND '2023-01-31';<\/code><\/pre>\n
\u4f7f\u7528\u65e5\u671f\u51fd\u6578\u9032\u884c\u67e5\u8a62<\/h2>\n
\u9664\u4e86\u4f7f\u7528 BETWEEN<\/code>\uff0c\u6211\u5011\u9084\u53ef\u4ee5\u5229\u7528 SQL \u7684\u65e5\u671f\u51fd\u6578\u4f86\u9032\u884c\u66f4\u9748\u6d3b\u7684\u67e5\u8a62\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 DATE()<\/code> \u51fd\u6578\u53ef\u4ee5\u63d0\u53d6\u65e5\u671f\u90e8\u5206\uff0c\u9019\u5728\u8655\u7406\u6642\u9593\u6233\u6642\u7279\u5225\u6709\u7528\u3002<\/p>\n
\u7bc4\u4f8b<\/h3>\n
\u5982\u679c\u6211\u5011\u60f3\u67e5\u8a62\u6240\u6709\u5728 2023 \u5e74 1 \u6708\u7684\u8a02\u55ae\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
SELECT * FROM orders\nWHERE DATE(order_date) >= '2023-01-01' AND DATE(order_date) < '2023-02-01';<\/code><\/pre>\n
\u8655\u7406\u6642\u9593\u6233<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u65e5\u671f\u6b04\u4f4d\u53ef\u80fd\u5305\u542b\u6642\u9593\u6233\uff08\u5373\u65e5\u671f\u548c\u6642\u9593\uff09\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u9700\u8981\u8003\u616e\u6642\u9593\u90e8\u5206\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u67e5\u8a62\u7bc4\u4f8b\uff0c\u67e5\u8a62\u5728 2023 \u5e74 1 \u6708 1 \u65e5 00:00:00 \u5230 2023 \u5e74 1 \u6708 31 \u65e5 23:59:59 \u4e4b\u9593\u7684\u6240\u6709\u8a02\u55ae\uff1a<\/p>\n
SELECT * FROM orders\nWHERE order_date >= '2023-01-01 00:00:00' AND order_date <= '2023-01-31 23:59:59';<\/code><\/pre>\n
\u4f7f\u7528\u7d22\u5f15\u63d0\u9ad8\u67e5\u8a62\u6548\u7387<\/h2>\n
\u5728\u9032\u884c\u65e5\u671f\u5340\u9593\u67e5\u8a62\u6642\uff0c\u70ba\u65e5\u671f\u6b04\u4f4d\u5275\u5efa\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u7d22\u5f15\u80fd\u5920\u52a0\u5feb\u6578\u64da\u6aa2\u7d22\u7684\u901f\u5ea6\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u70ba\u65e5\u671f\u6b04\u4f4d\u5275\u5efa\u7d22\u5f15\uff1a<\/p>\n
CREATE INDEX idx_order_date ON orders(order_date);<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u638c\u63e1 SQL \u4e2d\u7684\u65e5\u671f\u5340\u9593\u67e5\u8a62\u6280\u5de7\u5c0d\u65bc\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528 BETWEEN<\/code>\u3001\u65e5\u671f\u51fd\u6578\u4ee5\u53ca\u9069\u7576\u7684\u7d22\u5f15\uff0c\u6211\u5011\u53ef\u4ee5\u9ad8\u6548\u5730\u6aa2\u7d22\u6240\u9700\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u5728\u5546\u696d\u5206\u6790\u9084\u662f\u65e5\u5e38\u6578\u64da\u7ba1\u7406\u4e2d\uff0c\u9019\u4e9b\u6280\u5de7\u90fd\u80fd\u5e6b\u52a9\u6211\u5011\u66f4\u597d\u5730\u7406\u89e3\u548c\u5229\u7528\u6578\u64da\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u638c\u63e1SQL\u67e5\u8a62\u6280\u5de7\uff0c\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u8868\u4e2d\u6709\u6548\u67e5\u8a62\u65e5\u671f\u5340\u9593\uff0c\u63d0\u5347\u6578\u64da\u5206\u6790\u6548\u7387\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-143755","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143755","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=143755"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143755\/revisions"}],"predecessor-version":[{"id":143756,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/143755\/revisions\/143756"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=143755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=143755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=143755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}