Question

I’m trying to set a default text value for the already derived column “Sub1” Is this possible? I’ve created placeholders for the columns to be derived using a value of 0. I’m working in Teradata if it matters….. THANKS!

select c_clm
,dt.Claimant_Name
,dt.i_ssn
,0 as "Time_Period"
,0 as "Unit_ID",
/*,idv.C_PDT AS "Product"
,er.C_FRM_POL AS "Group Product",*/
(case
 when idv.c_pdt is null then 'GLTC' 
 else idv.c_pdt
 end) as "Product_ID"
,c_ams_clm as "DBS_UserID"
,upc_indiv_org_id as "DBS_EEID"
,0 as "Categ"
,0 as Categ_sort
,0 as "Sub1"
,0 as "Sub1_Sort"
,0 as "Sub2"
,0 as "Sub2_Sort"
,0 as "MTD_Num" 
,0 as "MTD_Denom"
,dt.i_pol as "Policy_Number"
,COALESCE (erpol.n_pol,idv.n_pol, ks.n_pol) 

Answer 1

Are you trying to do this:

select '0' as Sub1

You can assign a text value directly, the same way as a number.

Or, are you trying to assign a value to a column when it is NULL in a SELECT. To do this, use COALESCE:

select coalesce(Sub1, '0') as Sub1