Oracle Frequently Encountered Questions
发布时间:2020-12-12 15:38:38 所属栏目:百科 来源:网络整理
导读:How do I get Year or Month etc From Date? Use the Extract Function SELECT EXTRACT( MONTH FROM ORDER_DATE) ORDER_MONTH FROM ORDERS; Can I use aliases in where clause? The answer is No SELECT EXTRACT( MONTH FROM ORDER_DATE) ORDER_MONTH FROM
SELECT EXTRACT(MONTH FROM ORDER_DATE) ORDER_MONTH FROM ORDERS;
SELECT EXTRACT(MONTH FROM ORDER_DATE) ORDER_MONTH FROM ORDERS WHERE ORDER_MONTH = 10;--don't do this
SELECT EXTRACT(MONTH FROM ORDER_DATE) ORDER_MONTH FROM ORDERS WHERE EXTRACT(MONTH FROM ORDER_DATE) = 10;--do like this (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |