multiple subquery error "invalid identifier" - sql

Question

Im working on this code but i keep getting invalid identifer for t2.nabp_num
`with t1 as (query1),
t2 as (query2)
Select t1.*, t2.device_count,
d.* from t1
inner join t2 on
t1.nabp_num = t2.nabp_num and
t1.dt = t2.dt and
t1.d_member = t2.d_member
inner join drug_product d on
t1.d_product_id = d.product_id
order by claim_count desc;`
i get invalid identifier

Answer 1

As already commented, you can't reference something that doesn't exist.
It would certainly help if you posted actual query instead of invalid
with t1 as (query1 --> what is "query1"?
Order by ...
Anyway: as NABP_NUM is referenced here:
inner join t2 on t1.nabp_num = t2.nabp_num
it means that it has to be part of both t1 and t2. However, as t2 CTEs result is derived from t1, maybe you don't need t1 at all ...
If you add all columns that are currently missing in either select column list or group by clause, query would look like this (see comments within code):
WITH
t1
AS
(SELECT d_member_id,
dt,
device_type,
claim_id,
nabp_num, --> add NABP_NUM
d_member_hq_id --> add D_MEMBER_HQ_ID
d_drug_product_id --> add D_DRUG_PRODUCT_ID
FROM some_table --> which table?
), --> remove ORDER BY, it is useless here
t2
AS
( SELECT d_member_id,
dt,
nabp_num, --> add NABP_NUM
d_member_hq_id, --> add D_MEMBER_HQ_ID
COUNT (DISTINCT device_type) AS device_count,
COUNT (DISTINCT claim_ID) AS claim_count
FROM t1
GROUP BY d_member_id, dt, nabp_num, d_member_hq_id) --> add NABP_NUM and D_MEMBER_HQ_ID
SELECT t1.*, t2.device_count, d.*
FROM t1
INNER JOIN t2
ON t1.nabp_num = t2.nabp_num
AND t1.dt = t2.dt
AND t1.d_member_hq_id = t2.d_member_hq_id
INNER JOIN vmd_drug_product d
ON t1.d_drug_product_id = d.d_drug_product_id
ORDER BY t2.claim_count DESC;
Even though this shouldn't return any syntax errors any more (presuming columns used here really exist in some_table), I can't tell whether this will - or will not - return desired result.