smaller than 8 digits long in impala

Question

I have customer numbers some of which are longer than 8 digits. How can I flag them so they are not counted?

I tried the following:

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;

What do I need to change?

Answer 1

How about this?

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

If the value is a string, then just use length():

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

Answer 2

You can try below

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;