Filter expression in union all in obiee

Question

WHERE offset = 0
OR (offset = 1 AND mkt_value <> 0)
i have to implement this filter in where clause in result columns after union all ..
how to make it feasible
FILTER(saw_6 USING ((saw_6 = 1) OR ((saw_6 = 1) AND ((CASE WHEN saw_6 = 1 THEN saw_31 ELSE saw_11 END) <>0))))
offset = saw_6
mkt_value=CASE WHEN saw_6 = 1 THEN saw_31 ELSE saw_11 END

Answer 1

Ok. for this requirement easiest thing would be to bring an additional column in your resultset of query behind called YearRank. The logic would be as below
SELECT DENSE_RANK() OVER (ORDER BY YearColumn DESC) AS YearRank,
... rest of your query
Then use the filter as below
Expression: [YearRank]
Operator: <=
Value: 5
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