problem with conditions in case when in SAS-CodePudding

I wanted to add a case when WPIS_ where if frm_code is one of the codes mentioned then we ASSIGNY W if not then B. I get "Syntax error" what I do wrong Rest code is working

PROC SQL;     
create table PolisyEnd as 
    select distinct       
    t1.data_danych as data_danych 
     ,t4.spr_NRB as NRB
     ,intnx('month',datepart(t1.PRP_END_DATE),0,'b') format=yymmd7. as POLICY_VINTAGE,
case
    when datepart(t1.PRP_END_DATE) IS NOT NULL and datepart(t1.PRP_END_DATE) - &gv_date_dly. < 0 THEN 'W' 
    when datepart(t1.PRP_END_DATE) IS NOT NULL and datepart(t1.PRP_END_DATE) - &gv_date_dly. > 0 THEN 'A' 
    when datepart(t1.PRP_END_DATE) IS NULL THEN 'NO INFO' 

    end as POLISA_INFORMACJA
case
    when t5.frm_code = 'C11' then 'W'
    and t5.frm_code = 'A11' then 'W'
    and t5.frm_code ='C30' then 'W'
    and t5.frm_code 'ZH1' then 'W'
    else 'B'
    end as WPIS_
from 
    cmz.WMDTZDP_BH t1

CodePudding user response：

As @HoneyBadger noted, there should be a comma after the first case statement.

Also there is 'and' instead of 'when' 3 times in the second case statement.

It looks like '=' is missing in t5.frm_code 'ZH1' then 'W'.

There must also be a semi-colon at the very end.