Sql 黑斑羚中长度小于8位的

我有客户号码，其中一些超过8位。我如何标记它们，使它们不被计算

我尝试了以下方法：

SELECT 
t1.updte_user as staff_number,
(CASE WHEN (CAST(t1.updte_user) AS INT ) Integer not null check 
((CAST(t1.updte_user)AS INT) between 0 and 99999999 THEN  1 else 0 ) end as  
TRUE_STAFF
from old as t1;

我需要更改什么？

您可以在下面尝试

SELECT 
t1.updte_user as staff_number,
CASE WHEN length((CAST(t1.updte_user AS string))>8 then 0 else 1 as  
TRUE_STAFF
from old as t1;

这个怎么样

select staff_number, 
       (case when t1.updte_user > 100000000 then 0 else 1 end)
from old;

如果值是字符串，则只需使用长度：

select staff_number,
       (case when length(t1.updte_user) > 8 then 0 else 1 end)
from old;