sql - Progress DB：根据当前日期设置 Where 值

Question

编辑更多信息：这是基本想法：

Select 
    ID,
    Site,
    Pay,
    Code
FROM STAFF
    WHERE CASE
    When 1/1/2013 < CURDATE() < 3/1/2013 then Staff."Code" in (1,2,3)
    When 3/1/2013 < CURDATE() < 5/1/2012 then Staff."Code" in (2,3,4)
    END

我几乎从不使用 Progress DB，因此我们将不胜感激。谢谢你，

Answer 1

你的意思是这样的吗？

WHERE
    (CURDATE() BETWEEN 1/1/2013 AND 3/1/2013 AND Staff."Code" IN (1,2,3)) OR
    (CURDATE() BETWEEN 3/1/2013 AND 5/1/2013 AND Staff."Code" IN (2,3,4))