{"id":163879,"date":"2024-11-05T03:11:26","date_gmt":"2024-11-04T19:11:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163879\/"},"modified":"2024-11-05T03:11:27","modified_gmt":"2024-11-04T19:11:27","slug":"%e8%a7%a3%e6%b1%ba%e5%95%8f%e9%a1%8c%ef%bc%81%e6%95%b8%e6%93%9a%e5%ba%ab%e5%b9%b4%e4%bb%bd%e4%bf%a1%e6%81%af%e4%b8%8d%e5%85%a8%ef%bc%9f%e5%8f%aa%e9%a1%af%e7%a4%ba%e5%b9%b4%e6%80%8e%e9%ba%bc%e8%be%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163879\/","title":{"rendered":"\u89e3\u6c7a\u554f\u984c\uff01\u6578\u64da\u5eab\u5e74\u4efd\u4fe1\u606f\u4e0d\u5168\uff1f\u53ea\u986f\u793a\u5e74\u600e\u9ebc\u8fa6\uff1f (\u6578\u64da\u5eab\u53ea\u986f\u793a\u5e74)"},"content":{"rendered":"<h1 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id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-npXEgoEmlz\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u91dd\u5c0d\u4e0a\u8ff0\u554f\u984c\uff0c\u6211\u5011\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-npXEgoEmlz\">1. \u6aa2\u67e5\u6578\u64da\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u6578\u64da\u8868\u4e2d\u65e5\u671f\u5b57\u6bb5\u7684\u6578\u64da\u985e\u578b\u3002\u78ba\u4fdd\u4f7f\u7528\u4e86\u9069\u5408\u7684\u65e5\u671f\u985e\u578b\uff0c\u4f8b\u5982 <code>DATE<\/code> \u6216 <code>DATETIME<\/code>\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u8868\u6642\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE events (\n    id INT PRIMARY KEY,\n    event_name VARCHAR(100),\n    event_date DATE\n);<\/code><\/pre>\n<h3 id=\"2-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a%e6%8f%92%e5%85%a5%e6%a0%bc%e5%bc%8f-npXEgoEmlz\">2. \u66f4\u65b0\u6578\u64da\u63d2\u5165\u683c\u5f0f<\/h3>\n<p>\u5728\u63d2\u5165\u6578\u64da\u6642\uff0c\u78ba\u4fdd\u63d0\u4f9b\u5b8c\u6574\u7684\u65e5\u671f\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u6b63\u78ba\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>INSERT INTO events (id, event_name, event_date) VALUES (1, '\u65b0\u5e74\u6d3e\u5c0d', '2023-01-01');<\/code><\/pre>\n<h3 id=\"3-%e8%aa%bf%e6%95%b4%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-npXEgoEmlz\">3. \u8abf\u6574\u67e5\u8a62\u8a9e\u53e5<\/h3>\n<p>\u5982\u679c\u67e5\u8a62\u8a9e\u53e5\u4e0d\u6b63\u78ba\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u53ea\u8fd4\u56de\u5e74\u4efd\u3002\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684SQL\u8a9e\u53e5\u4f86\u7372\u53d6\u5b8c\u6574\u7684\u65e5\u671f\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT event_name, event_date FROM events WHERE YEAR(event_date) = 2023;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u57282023\u5e74\u8209\u884c\u7684\u4e8b\u4ef6\u53ca\u5176\u5b8c\u6574\u7684\u65e5\u671f\u4fe1\u606f\u3002<\/p>\n<h2 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id=\"%e7%b5%90%e8%ab%96-npXEgoEmlz\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u53ea\u986f\u793a\u5e74\u4efd\u7684\u554f\u984c\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u53ef\u7528\u6027\u3002\u901a\u904e\u6aa2\u67e5\u6578\u64da\u985e\u578b\u3001\u66f4\u65b0\u6578\u64da\u63d2\u5165\u683c\u5f0f\u4ee5\u53ca\u8abf\u6574\u67e5\u8a62\u8a9e\u53e5\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u6b64\u5916\uff0c\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u5c07\u6709\u52a9\u65bc\u907f\u514d\u672a\u4f86\u51fa\u73fe\u985e\u4f3c\u554f\u984c\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a 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