mismatched input 'from' expecting <EOF> SQL

Question

I am running a process on Spark which uses SQL for the most part. In one of the workflows I am getting the following error:

mismatched input 'from' expecting

The code is

 select a.ACCOUNT_IDENTIFIER,a.LAN_CD, a.BEST_CARD_NUMBER,  
 decision_id, 
 case when a.BEST_CARD_NUMBER = 1 then 'Y' else 'N' end as best_card_excl_flag 
 from (select a.ACCOUNT_IDENTIFIER,a.LAN_CD, a. decision_id row_number()
 over (partition by CUST_GRP_MBRP_ID 
    order by coalesce(BEST_CARD_RANK,999)) as BEST_CARD_NUMBER 
 from Accounts_Inclusions_Exclusions_Flagged a) a 

I cannot figure out what the error is for the life of me

I've tried checking for comma errors or unexpected brackets but that doesn't seem to be the issue.

Answer 1

In the 4th line of you code, you just need to add a comma after a.decision_id, since row_number() over is a separate column/function.

P.S.: Try yo use indentation in nested select statements so you and your peers can understand the code easily. Cheers!