SQL从出生日期值创建年龄范围

Question

我想创建一个年龄范围为 AGEGROUP 的列：'under 30' '30 - 40' '40 - 50'
'50 - 60' '60 - 70' 'over 70' 具有表 XSALES.CUSTOMERS 中当前日期 -BIRTH_DATE 的值

我试过了，但输出显示：“在预期的地方找不到 FROM 关键字”

select *,
  case
    when datediff(now(), BIRTH_DATE) / 365.25 < 30 then 'under 30'
    when datediff(now(), BIRTH_DATE) / 365.25 < 41 then '30 - 40'
    when datediff(now(), BIRTH_DATE) / 365.25 < 51 then '40 - 50'
    when datediff(now(), BIRTH_DATE) / 365.25 < 61 then '50 - 60'
    when datediff(now(), BIRTH_DATE) / 365.25 < 71 then '60 - 70'
    else 'over 70'
  end as AGEGROUP
from XSALES.CUSTOMERS;

Answer 1

尝试：

select *, AGEGROUP =
  case
    when datediff(Day, BIRTH_DATE, GetDate()) / 365.25 < 30 then 'under 30'
    when datediff(Day, BIRTH_DATE, GetDate()) / 365.25 < 41 then '30 - 40'
    when datediff(Day, BIRTH_DATE, GetDate()) / 365.25 < 51 then '40 - 50'
    when datediff(Day, BIRTH_DATE, GetDate()) / 365.25 < 61 then '50 - 60'
    when datediff(Day, BIRTH_DATE, GetDate()) / 365.25 < 71 then '60 - 70'
    else 'over 70'
  end 
from XSALES.CUSTOMERS;