Author: Auryn
Subject: Row-Numbers of distinct rows?
Posted: Thu Oct 20, 2016 4:38 pm (GMT 5.5)
Hi there,
a new question:
Background: We have a table with some more than tree columns but with a pk column (let's call it PK_COL), a fk column (FK_COL) and third column with depending values (VAL_COL) which may contain duplicate values depending to one fk.
Sample:
Thanks to all for your hints
The target is to SELECT DISTINCT FK_COL and VAL_COL but numbered by ROW_NUMBER.
I've gut a solution wit a sub-select
But I am looking for a 'leaner' select. Is there a posibility to combine the DISTINCT clause with the row numbering?
When I was trying
the row numbers were interpreted as distinct values so the result containt duplicates :-(
Subject: Row-Numbers of distinct rows?
Posted: Thu Oct 20, 2016 4:38 pm (GMT 5.5)
Hi there,
a new question:
Background: We have a table with some more than tree columns but with a pk column (let's call it PK_COL), a fk column (FK_COL) and third column with depending values (VAL_COL) which may contain duplicate values depending to one fk.
Sample:
| Code: |
| PK_COL FK_COL VAL_COL 01 01 Alpha 02 01 Bravo 03 01 Alpha 04 01 Charlie 05 01 Bravo 06 01 Alpha |
Thanks to all for your hints
The target is to SELECT DISTINCT FK_COL and VAL_COL but numbered by ROW_NUMBER.
I've gut a solution wit a sub-select
| Code: |
| select FK_COL , VAL_COL , row_number() over (partition by FK_COL order by FK_COL , VAL_COL) RNUM from (select distinct FK_COL , VAL_COL from MY_DEP_TABLE ) with ur ; |
But I am looking for a 'leaner' select. Is there a posibility to combine the DISTINCT clause with the row numbering?
When I was trying
| Code: |
| select distinct FK_COL , VAL_COL , row_number() over (partition by FK_COL order by FK_COL , VAL_COL) RNUM |
the row numbers were interpreted as distinct values so the result containt duplicates :-(