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Home > Forums > Programmers > DBMS Packages > NCR: Teradata Forum

SQL Help!!!

Read More Threads Like This One

tektipuser2008 (Programmer)

12 Aug 08 21:07

Using Teradata ordered analytical functions , is it possible to get the result set below. If yes, can someone please provide me with some hints or the SQL itself.
Any help with this is much appreciated.

Sample Data :

Col1 Col2

D1   K1
D2   K1
D3   K2
D3   K4
D4   K1
D5   K2

Result set :

Col1 Col2

D1   K1
D3   K2

Explanation : Since K1 is associated with D1, all other associations of K1 should be dropped, similarly since D3 is associated with K2 all other associations of D3 should be dropped.

j355ga (MIS)

18 Aug 08 13:59

select col1, col2 from foo qualify rank() over (partition by col2 order by col1, col2) =1
order by 1

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