{"id":179874,"date":"2024-11-09T05:31:17","date_gmt":"2024-11-08T21:31:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179874\/"},"modified":"2024-11-09T05:31:17","modified_gmt":"2024-11-08T21:31:17","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%85%ac%e5%bc%8f%e8%a8%88%e7%ae%97%e5%b9%b4%e9%bd%a1-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%a8%88%e7%ae%97%e5%b9%b4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179874\/","title":{"rendered":"\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u516c\u5f0f\u8a08\u7b97\u5e74\u9f61 (\u6578\u64da\u5eab\u4e2d\u8a08\u7b97\u5e74\u9f61\u7684\u516c\u5f0f)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%85%ac%e5%bc%8f%e8%a8%88%e7%ae%97%e5%b9%b4%e9%bd%a1-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%a8%88%e7%ae%97%e5%b9%b4-cCJgYfBuHg\">\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u516c\u5f0f\u8a08\u7b97\u5e74\u9f61 (\u6578\u64da\u5eab\u4e2d\u8a08\u7b97\u5e74\u9f61\u7684\u516c\u5f0f)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u8a08\u7b97\u5e74\u9f61\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\uff0c\u5c24\u5176\u662f\u5728\u8655\u7406\u7528\u6236\u8cc7\u6599\u3001\u6703\u54e1\u7cfb\u7d71\u6216\u4efb\u4f55\u9700\u8981\u6839\u64da\u51fa\u751f\u65e5\u671f\u4f86\u8a08\u7b97\u5e74\u9f61\u7684\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u4f7f\u7528\u516c\u5f0f\u4f86\u8a08\u7b97\u5e74\u9f61\uff0c\u4e26\u63d0\u4f9b\u76f8\u61c9\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e8%a8%88%e7%ae%97%e5%b9%b4%e9%bd%a1%ef%bc%9f-cCJgYfBuHg\">\u70ba\u4ec0\u9ebc\u9700\u8981\u8a08\u7b97\u5e74\u9f61\uff1f<\/h2>\n<p>\u8a08\u7b97\u5e74\u9f61\u7684\u9700\u6c42\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u5834\u666f\u4e2d\uff1a<\/p>\n<ul>\n<li>\u7528\u6236\u8a3b\u518a\u6642\u9700\u8981\u9a57\u8b49\u5e74\u9f61\u9650\u5236\u3002<\/li>\n<li>\u751f\u6210\u5831\u544a\u6642\u9700\u8981\u6839\u64da\u5e74\u9f61\u5206\u7d44\u6578\u64da\u3002<\/li>\n<li>\u5728\u91ab\u7642\u6216\u6559\u80b2\u7cfb\u7d71\u4e2d\uff0c\u5e74\u9f61\u53ef\u80fd\u5f71\u97ff\u670d\u52d9\u7684\u63d0\u4f9b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9c%a8%e4%b8%8d%e5%90%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%a8%88%e7%ae%97%e5%b9%b4%e9%bd%a1%e7%9a%84%e5%85%ac%e5%bc%8f-cCJgYfBuHg\">\u5728\u4e0d\u540c\u6578\u64da\u5eab\u4e2d\u8a08\u7b97\u5e74\u9f61\u7684\u516c\u5f0f<\/h2>\n<h3 id=\"1-mysql-cCJgYfBuHg\">1. MySQL<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5167\u5efa\u7684\u65e5\u671f\u51fd\u6578\u4f86\u8a08\u7b97\u5e74\u9f61\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u67e5\u8a62\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\uff0c\u4e26\u4e14\u6709\u4e00\u500b <code>birthdate<\/code> \u6b04\u4f4d\uff1a<\/p>\n<pre><code>SELECT \n    name, \n    FLOOR(DATEDIFF(CURDATE(), birthdate) \/ 365.25) AS age \nFROM \n    users;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u4f7f\u7528 <code>DATEDIFF<\/code> \u51fd\u6578\u8a08\u7b97\u7576\u524d\u65e5\u671f\u8207\u51fa\u751f\u65e5\u671f\u4e4b\u9593\u7684\u5929\u6578\uff0c\u7136\u5f8c\u5c07\u5176\u9664\u4ee5 365.25 \u4f86\u7372\u5f97\u5e74\u9f61\u3002\u9019\u88e1\u4f7f\u7528 365.25 \u662f\u70ba\u4e86\u8003\u616e\u958f\u5e74\u3002<\/p>\n<h3 id=\"2-postgresql-cCJgYfBuHg\">2. PostgreSQL<\/h3>\n<p>\u5728PostgreSQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>AGE<\/code> \u51fd\u6578\u4f86\u8a08\u7b97\u5e74\u9f61\u3002\u4ee5\u4e0b\u662f\u76f8\u61c9\u7684\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT \n    name, \n    EXTRACT(YEAR FROM AGE(birthdate)) AS age \nFROM \n    users;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u76f4\u63a5\u4f7f\u7528 <code>AGE<\/code> \u51fd\u6578\uff0c\u4e26\u901a\u904e <code>EXTRACT<\/code> \u51fd\u6578\u63d0\u53d6\u5e74\u4efd\u90e8\u5206\uff0c\u5f9e\u800c\u7372\u5f97\u5e74\u9f61\u3002<\/p>\n<h3 id=\"3-sql-server-cCJgYfBuHg\">3. SQL Server<\/h3>\n<p>\u5728SQL Server\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>DATEDIFF<\/code> \u51fd\u6578\u4f86\u8a08\u7b97\u5e74\u9f61\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT \n    name, \n    DATEDIFF(YEAR, birthdate, GETDATE()) AS age \nFROM \n    users;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u8a08\u7b97\u5f9e\u51fa\u751f\u65e5\u671f\u5230\u7576\u524d\u65e5\u671f\u7684\u5e74\u4efd\u5dee\uff0c\u5f9e\u800c\u5f97\u5230\u5e74\u9f61\u3002<\/p>\n<h3 id=\"4-oracle-cCJgYfBuHg\">4. Oracle<\/h3>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>TRUNC<\/code> \u548c <code>MONTHS_BETWEEN<\/code> \u51fd\u6578\u4f86\u8a08\u7b97\u5e74\u9f61\uff1a<\/p>\n<pre><code>SELECT \n    name, \n    TRUNC(MONTHS_BETWEEN(SYSDATE, birthdate) \/ 12) AS age \nFROM \n    users;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u8a08\u7b97\u7576\u524d\u65e5\u671f\u8207\u51fa\u751f\u65e5\u671f\u4e4b\u9593\u7684\u6708\u4efd\u5dee\uff0c\u7136\u5f8c\u5c07\u5176\u9664\u4ee5 12 \u4f86\u7372\u5f97\u5e74\u9f61\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-cCJgYfBuHg\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u8a08\u7b97\u5e74\u9f61\u6642\uff0c\u61c9\u8003\u616e\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u51fa\u751f\u65e5\u671f\u7684\u683c\u5f0f\u6b63\u78ba\uff0c\u4e26\u4e14\u5728\u6578\u64da\u5eab\u4e2d\u4ee5\u65e5\u671f\u985e\u578b\u5b58\u5132\u3002<\/li>\n<li>\u8003\u616e\u958f\u5e74\u5c0d\u5e74\u9f61\u8a08\u7b97\u7684\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528\u5929\u6578\u8a08\u7b97\u6642\u3002<\/li>\n<li>\u6839\u64da\u696d\u52d9\u9700\u6c42\uff0c\u53ef\u80fd\u9700\u8981\u9032\u4e00\u6b65\u8655\u7406\u5e74\u9f61\u7684\u986f\u793a\u683c\u5f0f\uff0c\u4f8b\u5982\u986f\u793a\u70ba\u201cX\u6b72\u201d\u6216\u201cX\u6b72Y\u500b\u6708\u201d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cCJgYfBuHg\">\u7e3d\u7d50<\/h2>\n<p>\u8a08\u7b97\u5e74\u9f61\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u7121\u8ad6\u662f\u7528\u65bc\u7528\u6236\u9a57\u8b49\u9084\u662f\u6578\u64da\u5206\u6790\u3002\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u5404\u81ea\u7684\u51fd\u6578\u548c\u65b9\u6cd5\u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002\u901a\u904e\u672c\u6587\u63d0\u4f9b\u7684\u793a\u4f8b\uff0c\u60a8\u53ef\u4ee5\u6839\u64da\u81ea\u5df1\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u8a08\u7b97\u65b9\u5f0f\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\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":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u516c\u5f0f\u8a08\u7b97\u5e74\u9f61\uff0c\u638c\u63e1\u6709\u6548\u7684\u5e74\u9f61\u8a08\u7b97\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\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-179874","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179874","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=179874"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179874\/revisions"}],"predecessor-version":[{"id":179875,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179874\/revisions\/179875"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}