Try coalesce
On Tue, Jun 24, 2014 at 2:49 PM, sumit ghosh <sumi...@yahoo.com> wrote: > Did you try sum(col1), sum(col2) ... group by id > > > On Tuesday, 24 June 2014 1:23 PM, usha hive <ushah...@gmail.com> wrote: > > > Hi, > > I am trying to merge few rows in to 1 row. I am stuck. Please help me. > > Example > id col1 col2 col3 col4 > 1 44 NULL NULL NULL > 1 NULL 37 NULL NULL > 1 NULL NULL 88 NULL > 1 NULL NULL NULL 99 > > to > id col1 col2 col3 col4 > 1 44 37 88 99 > > Thanks, > Usha > > >