{"id":2017,"date":"2020-11-17T15:01:15","date_gmt":"2020-11-17T07:01:15","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=2017"},"modified":"2020-12-29T09:15:26","modified_gmt":"2020-12-29T01:15:26","slug":"gbase-8a%e5%af%b9date%e7%b1%bb%e5%9e%8b%e5%81%9a%e5%87%bd%e6%95%b0%e8%bf%90%e7%ae%97%e6%97%b6%e8%bf%94%e5%9b%9e%e7%b1%bb%e5%9e%8b%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/2017","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u5bf9date\u7c7b\u578b\u505a\u51fd\u6570\u8fd0\u7b97\u65f6\u8fd4\u56de\u7c7b\u578b\u63a7\u5236"},"content":{"rendered":"<p>\u8be5\u53c2\u6570\u7528\u4e8e\u8bbe\u7f6e\u5bf9date\u7c7b\u578b\u505a\u51fd\u6570\u8fd0\u7b97\u65f6\uff0c\u662f\u5426\u8fd4\u56de\u5305\u542b\u65f6\u5206\u79d2\u7684datetime\u7c7b\u578b\uff0c\u8fd8\u662fString \u5b57\u7b26\u4e32\u7c7b\u578b\u3002\u9ed8\u8ba4datetime\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\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2aa79278efb\" 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-6a2aa79278efb\"  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\/2017\/#%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-2\" href=\"https:\/\/www.gbase8.cn\/en\/2017\/#%E9%BB%98%E8%AE%A4%E5%80%BC\" >\u9ed8\u8ba4\u503c<\/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\/2017\/#Session\" >Session<\/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\/2017\/#%E6%A0%B7%E4%BE%8B\" >\u6837\u4f8b<\/a><\/li><\/ul><\/nav><\/div>\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>_gbase_date_func_type<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%BB%98%E8%AE%A4%E5%80%BC\"><\/span>\u9ed8\u8ba4\u503c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Session\"><\/span>Session<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Y<\/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<pre class=\"wp-block-code\"><code>gbase> select adddate('2020-01-01',interval 1 year);\n+---------------------------------------+\n| adddate('2020-01-01',interval 1 year) |\n+---------------------------------------+\n| 2021-01-01 00:00:00                   |\n+---------------------------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\ngbase> set _gbase_date_func_type = 0;\nQuery OK, 0 rows affected (Elapsed: 00:00:00.00)\n\ngbase> select adddate('2020-01-01',interval 1 year);\n+---------------------------------------+\n| adddate('2020-01-01',interval 1 year) |\n+---------------------------------------+\n| 2021-01-01                            |\n+---------------------------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>","protected":false},"excerpt":{"rendered":"<p>\u8be5\u53c2\u6570\u7528\u4e8e\u8bbe\u7f6e\u5bf9date\u7c7b\u578b\u505a\u51fd\u6570\u8fd0\u7b97\u65f6\uff0c\u662f\u5426\u8fd4\u56de\u5305\u542b\u65f6\u5206\u79d2\u7684datetime\u7c7b\u578b\uff0c\u8fd8\u662fString 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