when / case语句的问题

Question

我有一个代码，其中有此语句

when d.ID in (1,2,3,4,5,6,7,8)
            then
            case
                    when d.today < '01/01/2001'
                    then
                        122
                    else
                        124
                    end
            end,
            case
                when d.today < '10/10/2018'
                then
                    121
                ELSE
                    125
                end
            end

case语句抛出一个错误，说明语法不正确，我在这里缺少的东西似乎无法得到它

Answer 1

逗号没有意义。也许您想要else：

when d.ID in (1,2,3,4,5,6,7,8)
then (case when d.today < '2001-01-01'
           then 122
           else 124
      end)
else (case when d.today < '2018-10-10'
           then 121
           else 125
      end)

Answer 2

检查此-

    CASE
    WHEN d.ID IN(1, 2, 3, 4, 5, 6, 7, 8)
        THEN 
            CASE
                WHEN d.today < '01/01/2001' THEN 122
                ELSE 124
            END
        ELSE 
            CASE
                WHEN d.today < '10/10/2018' THEN 121
                ELSE 125
            END
    END;