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2021-02-25 12:23:23

(单选题)如何显示今天是星期几(周一到周日,分别用1~7表示

题目描述

Aselect to_char(sysdate,'D') from dual;

Bselect to_char(sysdate,'W') from dual;

Cselect to_char(sysdate,'D')-1 from dual;

Dselect to_char(sysdate-1,'D') from dual;

Eselect to_char(sysdate-1,'W') from dual;

答案解析

[db:答案解析]

D

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