unable to get data from the tables when applied where condition - sql

Question

Unable to get the data from the table after applying where conditio0n. manually checked all the tables the data is present in it.
Need help in resolving this issue.
I tried changing the where condition but still unable to get the data.
I assume the issue is in below condition however I'm unable to identify it
Below is the code:
SELECT
a.OpportunityCode AS KPMG_Opportunity__c,
CompetitorCode AS Account__c,
CASE
WHEN
b.StageDescription = 'Won'
THEN
'True'
ELSE
'False'
END
AS KPMG_Won_Opportunity__c, c.ConvertedOutcomeReasonCode, b.CloseDate, b.etl_rec_eff_end_ts, d.IsArchived
FROM
bpg_crm_opportunity_refined.oppty_competitors AS a
LEFT JOIN
bpg_crm_opportunity_refined.oppty_header AS b
ON a.opportunitycode = b.OpportunityCode
LEFT JOIN
bpg_oppty_mgmt_trusted.outcomereason_conversion_lkp c
ON b.OpportunityStatusCode_Orig = c.StatusCode
LEFT JOIN
bpg_crm_engagement_trusted.edw_dim_entity d
ON b.PrimaryAccountCode = d.EntityID
WHERE
d.IsArchived != 'false'
and c.ConvertedOutcomeReasonCode != 'Z004A'
and date_part('Year', b.etl_rec_eff_end_ts) = '9999'
Unable to get the data from the table after applying where conditio0n. manually checked all the tables the data is present in it.
Need help in resolving this issue.
I tried changing the where condition but still unable to get the data.
I assume the issue is in below condition however I'm unable to identify it

Answer 1

SELECT
a.OpportunityCode AS KPMG_Opportunity__c,
CompetitorCode AS Account__c,
CASE
WHEN
b.StageDescription = 'Won'
THEN
'True'
ELSE
'False'
END
AS KPMG_Won_Opportunity__c,
c.ConvertedOutcomeReasonCode, b.CloseDate, b.etl_rec_eff_end_ts, d.IsArchived
FROM
bpg_crm_opportunity_refined.oppty_competitors AS a
LEFT JOIN
(
SELECT OpportunityCode,OpportunityStatusCode_Orig,PrimaryAccountCode,
StageDescription,CloseDate,etl_rec_eff_end_ts
FROM bpg_crm_opportunity_refined.oppty_header
WHERE b.etl_rec_eff_end_ts BETWEEN '99990101'AND '99991231'
)AS b ON a.opportunitycode = b.OpportunityCode
LEFT JOIN
(
SELECT ConvertedOutcomeReasonCode,StatusCode
FROM
bpg_oppty_mgmt_trusted.outcomereason_conversion_lkp c
WHERE ConvertedOutcomeReasonCode != 'Z004A'
)AS c ON b.OpportunityStatusCode_Orig = c.StatusCode
LEFT JOIN
(
SELECT EntityID,IsArchived
FROM
bpg_crm_engagement_trusted.edw_dim_entity
WHERE IsArchived != 'false'
) D ON b.PrimaryAccountCode = d.EntityID
May be something like this