{"id":2758,"date":"2021-01-04T18:36:13","date_gmt":"2021-01-04T10:36:13","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=2758"},"modified":"2021-01-04T18:45:06","modified_gmt":"2021-01-04T10:45:06","slug":"gbase-8a%e4%bb%8e%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%97%a5%e6%9c%9f%e5%87%bd%e6%95%b0to_date%e7%9a%84%e4%bb%8b%e7%bb%8d%e5%92%8c%e4%be%8b%e5%ad%90","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/2758","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u4ece\u5b57\u7b26\u4e32\u8f6c\u65e5\u671f\u51fd\u6570to_date\u7684\u4ecb\u7ecd\u548c\u4f8b\u5b50"},"content":{"rendered":"\n<p>\u672c\u6587\u4ecb\u7ecdGBaase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u5185\u7f6e\u7684\u4ece\u5b57\u7b26\u4e32\u8f6c\u65e5\u671f\u7684\u51fd\u6570to_date\u8bed\u6cd5\u548c\u4f7f\u7528\u4f8b\u5b50\uff0c\u5927\u90e8\u5206\u517c\u5bb9Oracle\u8bed\u6cd5\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u5f55\u5bfc\u822a<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2ac0441d176\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2ac0441d176\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E8%AF%AD%E6%B3%95\" >\u8bed\u6cd5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E8%AF%B4%E6%98%8E\" >\u8bf4\u660e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E5%8F%82%E6%95%B0\" >\u53c2\u6570<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E6%A0%B7%E4%BE%8B\" >\u6837\u4f8b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E5%B8%B8%E7%94%A8%E7%9A%84%E4%B8%AD%E6%96%87%E6%A0%BC%E5%BC%8F_YYYY-MM-DD_HH24_MI_SS\" >\u5e38\u7528\u7684\u4e2d\u6587\u683c\u5f0f:YYYY-MM-DD HH24:MI:SS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E5%B8%A6%E6%AF%AB%E7%A7%92_YYYY-MM-DD_HH24_MI_SSFF\" >\u5e26\u6beb\u79d2:YYYY-MM-DD HH24:MI:SS.FF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E6%96%9C%E6%9D%A0%E5%88%86%E9%9A%94%E7%AC%A6\" >\u659c\u6760\u5206\u9694\u7b26<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E5%B8%A6AMPM\" >\u5e26AM\/PM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#2%E4%BD%8D%E7%9A%84%E5%B9%B4%E4%BB%BD_YY\" >2\u4f4d\u7684\u5e74\u4efd:YY<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E4%B8%80%E5%B9%B4%E5%86%85%E7%9A%84%E5%A4%A9%E6%95%B0%EF%BC%9ADDD\" >\u4e00\u5e74\u5185\u7684\u5929\u6570\uff1aDDD<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E5%8F%82%E8%80%83\" >\u53c2\u8003<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E7%9B%B8%E4%BC%BC%E5%8A%9F%E8%83%BD\" >\u76f8\u4f3c\u529f\u80fd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.gbase8.cn\/en\/2758\/#%E5%8F%8D%E5%90%91%E5%8A%9F%E8%83%BD\" >\u53cd\u5411\u529f\u80fd<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AF%AD%E6%B3%95\"><\/span>\u8bed\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>TO_DATE(string,format)\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%AF%B4%E6%98%8E\"><\/span>\u8bf4\u660e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5c06\u5b57\u7b26\u4e32 string \u683c\u5f0f\u5316\u6210 format \u7c7b\u578b\u7684\u65e5\u671f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E6%95%B0\"><\/span>\u53c2\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5982\u4e0b\u662f\u652f\u6301\u7684\u53c2\u6570\u5217\u8868\uff0c\u53ea\u517c\u5bb9\u90e8\u5206Oracle\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><th>\u6a21\u677f<\/th><th>\u63cf\u8ff0<\/th><\/tr><tr><td>\/-:.<\/td><td>\u5206\u9694\u7b26\uff0c\u8f93\u51fa\u7684\u5e74\u6708\u65e5\u90fd\u662f-<\/td><\/tr><tr><td>HH<\/td><td>\u4e00\u5929\u7684\u5c0f\u65f6\u6570 (01-12)<\/td><\/tr><tr><td>HH12<\/td><td>\u4e00\u5929\u7684\u5c0f\u65f6\u6570 (01-12)<\/td><\/tr><tr><td>HH24<\/td><td>\u4e00\u5929\u7684\u5c0f\u65f6\u6570 (00-23)<\/td><\/tr><tr><td>MI<\/td><td>\u5206\u949f (00-59)<\/td><\/tr><tr><td>SS<\/td><td>\u79d2 (00-59)<\/td><\/tr><tr><td>AM or A.M. or PM or P.M.<\/td><td>\u6b63\u5348\u6807\u8bc6\uff0c\u90fd\u662f\u5927\u5199<\/td><\/tr><tr><td>YYYY<\/td><td>\u5e74\uff084\u548c\u66f4\u591a\u4f4d\uff09<\/td><\/tr><tr><td>YY<\/td><td>\u5e74\u7684\u540e\u4e24\u4f4d<\/td><\/tr><tr><td>MM<\/td><td>\u6708\u4efd (01-12)<\/td><\/tr><tr><td>DDD<\/td><td>\u4e00\u5e74\u91cc\u7684\u65e5\u5b50(001-366)<\/td><\/tr><tr><td>DD<\/td><td>\u4e00\u4e2a\u6708\u91cc\u7684\u65e5\u5b50(01-31)<\/td><\/tr><tr><td>FF[n]<\/td><td>\u6beb\u79d2\uff0c\u9ed8\u8ba4\u662f6\u4f4d\u7cbe\u5ea6\uff0c1&lt;=n&lt;=9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%A0%B7%E4%BE%8B\"><\/span>\u6837\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%B8%B8%E7%94%A8%E7%9A%84%E4%B8%AD%E6%96%87%E6%A0%BC%E5%BC%8F_YYYY-MM-DD_HH24_MI_SS\"><\/span>\u5e38\u7528\u7684\u4e2d\u6587\u683c\u5f0f:YYYY-MM-DD HH24:MI:SS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select to_date('2021-02-04 11:15:16','YYYY-MM-DD HH24:MI:SS') d;\n+---------------------+\n| d                   |\n+---------------------+\n| 2021-02-04 11:15:16 |\n+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%B8%A6%E6%AF%AB%E7%A7%92_YYYY-MM-DD_HH24_MI_SSFF\"><\/span>\u5e26\u6beb\u79d2:YYYY-MM-DD HH24:MI:SS.FF<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select to_date('2021-02-04 11:15:16.987654321','YYYY-MM-DD HH24:MI:SS.FF') d;\n+----------------------------+\n| d                          |\n+----------------------------+\n| 2021-02-04 11:15:16.987654 |\n+----------------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\n\ngbase&gt; select to_date('2021\/02\/04 11:15:16.987654321','YYYY\/MM\/DD HH24:MI:SS.FF') d;\n+----------------------------+\n| d                          |\n+----------------------------+\n| 2021-02-04 11:15:16.987654 |\n+----------------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%96%9C%E6%9D%A0%E5%88%86%E9%9A%94%E7%AC%A6\"><\/span>\u659c\u6760\u5206\u9694\u7b26<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase> select to_date('2021\/02\/04 11:15:16.987654321','YYYY\/MM\/DD HH24:MI:SS.FF') d;\r\n+----------------------------+\r\n| d                          |\r\n+----------------------------+\r\n| 2021-02-04 11:15:16.987654 |\r\n+----------------------------+\r\n1 row in set (Elapsed: 00:00:00.00)\r\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%B8%A6AMPM\"><\/span>\u5e26AM\/PM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p> \u5c0f\u65f6\u5fc5\u987b\u7528HH\u683c\u5f0f\uff0c\u4e14\u539f\u59cb\u5b57\u7b26\u4e32\u5fc5\u987b\u5e26AM\/PM\u5b57\u6837\u3002\u5426\u5219\u7ed3\u679c\u53ef\u80fd\u9519\u8bef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select to_date('2021-02-04 11:15:16 PM','YYYY-MM-DD HH:MI:SS PM') d;\n+---------------------+\n| d                   |\n+---------------------+\n| 2021-02-04 23:15:16 |\n+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\ngbase&gt; select to_date('2021-02-04 11:15:16 PM','YYYY-MM-DD HH:MI:SS AM') d;\n+---------------------+\n| d                   |\n+---------------------+\n| 2021-02-04 23:15:16 |\n+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2%E4%BD%8D%E7%9A%84%E5%B9%B4%E4%BB%BD_YY\"><\/span>2\u4f4d\u7684\u5e74\u4efd:YY<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u9ed8\u8ba4\u662f\u5f53\u524d\u768420XX\u5e74\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select to_date('21-02-04 11:15:16 PM','YY-MM-DD HH:MI:SS AM') d;\n+---------------------+\n| d                   |\n+---------------------+\n| 2021-02-04 23:15:16 |\n+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%B8%80%E5%B9%B4%E5%86%85%E7%9A%84%E5%A4%A9%E6%95%B0%EF%BC%9ADDD\"><\/span> \u4e00\u5e74\u5185\u7684\u5929\u6570\uff1aDDD<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>gbase&gt; select to_date(123,'DDD');\n+--------------------+\n| to_date(123,'DDD') |\n+--------------------+\n| 2021-05-03         |\n+--------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83\"><\/span>\u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%9B%B8%E4%BC%BC%E5%8A%9F%E8%83%BD\"><\/span>\u76f8\u4f3c\u529f\u80fd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><a href=\"https:\/\/www.gbase8.cn\/923\">GBase 8a\u6570\u636e\u5e93\u51fd\u6570str_to_date\u5c06\u6587\u672c\u6309\u6307\u5b9a\u683c\u5f0f\u8f6c\u5316\u4e3a\u65e5\u671f<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%8D%E5%90%91%E5%8A%9F%E8%83%BD\"><\/span>\u53cd\u5411\u529f\u80fd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><a href=\"https:\/\/www.gbase8.cn\/2756\">GBase 8a\u5c06\u65e5\u671f\u8f6c\u5b57\u7b26\u4e32to_char\u51fd\u6570\u529f\u80fd\u4ecb\u7ecd\u548c\u6837\u4f8b<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.gbase8.cn\/917\">GBase 8a\u6570\u636e\u5e93\u51fd\u6570date_format\u5c06\u65e5\u671f\u683c\u5f0f\u5316\u6210\u6307\u5b9a\u683c\u5f0f\u7684\u6587\u672c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4ecb\u7ecdGBaase 8a\u6570\u636e\u5e93\u96c6\u7fa4\u5185\u7f6e\u7684\u4ece\u5b57\u7b26\u4e32\u8f6c\u65e5\u671f\u7684\u51fd\u6570to_date\u8bed\u6cd5\u548c\u4f7f\u7528\u4f8b\u5b50\uff0c\u5927\u90e8\u5206\u517c\u5bb9Oracle\u8bed\u6cd5\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[36],"class_list":["post-2758","post","type-post","status-publish","format-standard","hentry","category-gbase8a","tag-36"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=2758"}],"version-history":[{"count":18,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2758\/revisions"}],"predecessor-version":[{"id":2846,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2758\/revisions\/2846"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=2758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=2758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=2758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}