Chris Velevitch wrote:
I'm to write a query like:-
select
case when column_name1 <> value_of_previous(column_name1)
then column_name1 end as column
,column_name2
from table
ordered by column_name1, column_name2
in order to get:-
column| column_name2
--+--
In response to Chris Velevitch :
> I'm to write a query like:-
>
> select
> case when column_name1 <> value_of_previous(column_name1)
> then column_name1 end as column
> ,column_name2
> from table
> ordered by column_name1, column_name2
Okay, with this table:
test=# select * f
I'm to write a query like:-
select
case when column_name1 <> value_of_previous(column_name1)
then column_name1 end as column
,column_name2
from table
ordered by column_name1, column_name2
in order to get:-
column| column_name2
--+--
value_1_c1
