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Scenario:- 




Below is the requirement.




Source:- 
NAME          ID                    Requirement 
RAVI            1                      (no need to repeat as it ID is 1)
KUMAR        3                     (repeat 3 times as it ID is 3)
John             4                     (repeat 4 times as it ID is 4)




Required Out Put:-




Name                   ID
RAVI                     1                   
KUMAR                3     
KUMAR                3
KUMAR                3 
John                     4
John                     4
John                     4
John                     4

Scenario 2:-




Source Data 




ID              NAME
1,2            NETEZZA,ORACLE
3,4,5         SQL Server, DB2, Teradata




Required Output:- 




ID                   NAME
1                  NETEZZA
1                  ORACLE
3                  SQL Server
3                  DB2
3                  Teradata

Question Posted / krish

Answer Posted / krish

http://netezzamigration.blogspot.com/2014/10/implementing-java-transformation-with.html

Is This Answer Correct ?    2 Yes 0 No



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rank() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid order by case when opt2.dm_market_flg in ('Y', 'U') then 1 else 2 end, lkp.contact_rank) as rank1, case opt2.contact_type when 'Buyer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, ship_to_flg desc , last_order_dt desc) when 'Decision Maker' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc , last_quote_dt desc , mailability_score desc , source_ranking desc) when 'Influencer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) when 'Payer' then row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) --elu 05/28/2013 else row_number() over (partition by opt2.dim_plat_site_id, opt2.dim_site_opt_sid, lkp.contact_rank order by has_name_flg desc, mailability_score desc, source_ranking desc) end rank2 row_number() over (partition by opt3.dim_plat_site_id, opt3.dim_site_opt_sid order by rank1,rank2) as "rank", case when "rank"<= opt3.maximum_value then 'Y' else 'N' end as include_flg

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