{"id":76174,"date":"2024-10-16T04:28:23","date_gmt":"2024-10-15T20:28:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76174\/"},"modified":"2024-10-16T04:28:24","modified_gmt":"2024-10-15T20:28:24","slug":"mysql%e6%97%a5%e6%9c%9f%e8%88%87%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e7%9a%84%e4%b8%8d%e5%90%8c%e8%bd%89%e6%8f%9b%e5%af%a6%e6%93%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76174\/","title":{"rendered":"MySQL\u65e5\u671f\u8207\u6642\u9593\u683c\u5f0f\u7684\u4e0d\u540c\u8f49\u63db\u5be6\u64cd"},"content":{"rendered":"<h1 id=\"mysql%e6%97%a5%e6%9c%9f%e8%88%87%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e7%9a%84%e4%b8%8d%e5%90%8c%e8%bd%89%e6%8f%9b%e5%af%a6%e6%93%8d-yaFXtMMoxx\">MySQL\u65e5\u671f\u8207\u6642\u9593\u683c\u5f0f\u7684\u4e0d\u540c\u8f49\u63db\u5be6\u64cd<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u65e5\u671f\u8207\u6642\u9593\u7684\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65e5\u671f\u8207\u6642\u9593\u683c\u5f0f\u7684\u652f\u6301\u3002\u672c\u6587\u5c07\u63a2\u8a0eMySQL\u4e2d\u65e5\u671f\u8207\u6642\u9593\u683c\u5f0f\u7684\u4e0d\u540c\u8f49\u63db\u5be6\u64cd\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u8655\u7406\u9019\u4e9b\u6578\u64da\u3002<\/p>\n<h2 id=\"mysql%e4%b8%ad%e7%9a%84%e6%97%a5%e6%9c%9f%e8%88%87%e6%99%82%e9%96%93%e9%a1%9e%e5%9e%8b-yaFXtMMoxx\">MySQL\u4e2d\u7684\u65e5\u671f\u8207\u6642\u9593\u985e\u578b<\/h2>\n<p>MySQL\u652f\u6301\u591a\u7a2e\u65e5\u671f\u8207\u6642\u9593\u985e\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>DATE<\/code>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\uff0c\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD&#8217;\u3002<\/li>\n<li><code>TIME<\/code>\uff1a\u7528\u65bc\u5b58\u5132\u6642\u9593\uff0c\u683c\u5f0f\u70ba &#8216;HH:MM:SS&#8217;\u3002<\/li>\n<li><code>DATETIME<\/code>\uff1a\u7528\u65bc\u5b58\u5132\u65e5\u671f\u548c\u6642\u9593\uff0c\u683c\u5f0f\u70ba &#8216;YYYY-MM-DD HH:MM:SS&#8217;\u3002<\/li>\n<li><code>TIMESTAMP<\/code>\uff1a\u985e\u4f3c\u65bc <code>DATETIME<\/code>\uff0c\u4f46\u6703\u6839\u64da\u6642\u5340\u81ea\u52d5\u8abf\u6574\u3002<\/li>\n<li><code>YEAR<\/code>\uff1a\u7528\u65bc\u5b58\u5132\u5e74\u4efd\uff0c\u683c\u5f0f\u70ba &#8216;YYYY&#8217;\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%97%a5%e6%9c%9f%e8%88%87%e6%99%82%e9%96%93%e6%a0%bc%e5%bc%8f%e7%9a%84%e8%bd%89%e6%8f%9b-yaFXtMMoxx\">\u65e5\u671f\u8207\u6642\u9593\u683c\u5f0f\u7684\u8f49\u63db<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u8f49\u63db\u65e5\u671f\u8207\u6642\u9593\u683c\u5f0f\u53ef\u4ee5\u4f7f\u7528\u591a\u7a2e\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u8f49\u63db\u51fd\u6578\uff1a<\/p>\n<h3 id=\"1-str_to_date-yaFXtMMoxx\">1. STR_TO_DATE()<\/h3>\n<p>\u6b64\u51fd\u6578\u7528\u65bc\u5c07\u5b57\u7b26\u4e32\u8f49\u63db\u70ba\u65e5\u671f\u683c\u5f0f\u3002\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>STR_TO_DATE(string, format)<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5c07\u5b57\u7b26\u4e32 &#8217;31-12-2023&#8242; \u8f49\u63db\u70ba\u65e5\u671f\u683c\u5f0f\uff1a<\/p>\n<pre><code>SELECT STR_TO_DATE('31-12-2023', '%d-%m-%Y');<\/code><\/pre>\n<h3 id=\"2-date_format-yaFXtMMoxx\">2. DATE_FORMAT()<\/h3>\n<p>\u6b64\u51fd\u6578\u7528\u65bc\u5c07\u65e5\u671f\u683c\u5f0f\u5316\u70ba\u5b57\u7b26\u4e32\u3002\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DATE_FORMAT(date, format)<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5c07\u65e5\u671f &#8216;2023-12-31&#8217; \u683c\u5f0f\u5316\u70ba &#8217;31\/12\/2023&#8217;\uff1a<\/p>\n<pre><code>SELECT DATE_FORMAT('2023-12-31', '%d\/%m\/%Y');<\/code><\/pre>\n<h3 id=\"3-unix_timestamp-yaFXtMMoxx\">3. UNIX_TIMESTAMP()<\/h3>\n<p>\u6b64\u51fd\u6578\u7528\u65bc\u5c07\u65e5\u671f\u8f49\u63db\u70baUNIX\u6642\u9593\u6233\u3002\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UNIX_TIMESTAMP(date)<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5c07\u65e5\u671f &#8216;2023-12-31&#8217; \u8f49\u63db\u70baUNIX\u6642\u9593\u6233\uff1a<\/p>\n<pre><code>SELECT UNIX_TIMESTAMP('2023-12-31');<\/code><\/pre>\n<h3 id=\"4-from_unixtime-yaFXtMMoxx\">4. FROM_UNIXTIME()<\/h3>\n<p>\u6b64\u51fd\u6578\u7528\u65bc\u5c07UNIX\u6642\u9593\u6233\u8f49\u63db\u70ba\u65e5\u671f\u683c\u5f0f\u3002\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>FROM_UNIXTIME(unix_timestamp)<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5c07UNIX\u6642\u9593\u6233 1672444800 \u8f49\u63db\u70ba\u65e5\u671f\uff1a<\/p>\n<pre><code>SELECT FROM_UNIXTIME(1672444800);<\/code><\/pre>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-yaFXtMMoxx\">\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>orders<\/code> \u7684\u8868\uff0c\u5305\u542b\u4e00\u500b <code>order_date<\/code> \u6b04\u4f4d\uff0c\u985e\u578b\u70ba <code>DATETIME<\/code>\u3002\u6211\u5011\u5e0c\u671b\u5c07\u6240\u6709\u8a02\u55ae\u7684\u65e5\u671f\u683c\u5f0f\u5f9e &#8216;YYYY-MM-DD HH:MM:SS&#8217; \u8f49\u63db\u70ba &#8216;DD\/MM\/YYYY&#8217; \u683c\u5f0f\u3002<\/p>\n<pre><code>SELECT DATE_FORMAT(order_date, '%d\/%m\/%Y') AS formatted_date FROM orders;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u5c31\u80fd\u5920\u4ee5\u66f4\u6613\u8b80\u7684\u683c\u5f0f\u986f\u793a\u8a02\u55ae\u65e5\u671f\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-yaFXtMMoxx\">\u7d50\u8ad6<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u65e5\u671f\u8207\u6642\u9593\u7684\u683c\u5f0f\u8f49\u63db\u662f\u6578\u64da\u8655\u7406\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u901a\u904e\u4f7f\u7528\u5404\u7a2e\u5167\u5efa\u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u8655\u7406\u548c\u986f\u793a\u65e5\u671f\u8207\u6642\u9593\u6578\u64da\u3002\u7121\u8ad6\u662f\u5c07\u5b57\u7b26\u4e32\u8f49\u63db\u70ba\u65e5\u671f\uff0c\u9084\u662f\u5c07\u65e5\u671f\u683c\u5f0f\u5316\u70ba\u5b57\u7b26\u4e32\uff0cMySQL\u90fd\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u9805\u76ee\u9084\u662f\u5927\u578b\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22MySQL\u65e5\u671f\u8207\u6642\u9593\u683c\u5f0f\u7684\u4e0d\u540c\u8f49\u63db\u5be6\u64cd\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u8655\u7406\u548c\u683c\u5f0f\u5316\u65e5\u671f\u6642\u9593\u6578\u64da\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-76174","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76174","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=76174"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76174\/revisions"}],"predecessor-version":[{"id":76175,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76174\/revisions\/76175"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}