Comments on: SQL Puzzle: SQL Advance Query – Remove all NULL value and arrange other NON NULL

By: Lakshman

Lakshman — Sat, 04 May 2019 11:04:17 +0000

select max(col1) as col1,max(col2) as col2,max(col3) as col3,max(col4) as col4 from tbl_Numbers

By: Ankush

Ankush — Fri, 14 Sep 2018 09:45:37 +0000

Select sum(col1) as col1, sum(col2) as col2 from
(Select distinct coalesce(col1,0)as col1 ,coalesce(col2,0)as col2 from (
Select 10 as col1, NULL as col2 from dual
UNION
Select NULL as col1, 20 as col2 from dual)foo)

Situation would be different when there are no numbers but characters!!

By: Anvesh Patel

Anvesh Patel — Thu, 23 Nov 2017 12:43:34 +0000

In reply to Dinesh I.S. Thanks that you corrected :)

By: Dinesh I.S

Dinesh I.S — Thu, 23 Nov 2017 10:18:12 +0000

Hi Sir

We are getting wrong result please check the once.

Col1:-20 but in your result showing 10

SELECT
[1] as Col1, [2] as Col2, [3] as Col3, [4] as Col4
FROM
(SELECT isnull(Col1,0)+isnull(Col2,0)+isnull(Col3,0)+isnull(Col4,0) as SumAll,ROW_NUMBER () over (order by (select 0)) as t
FROM tbl_Numbers ) AS SourceTable
PIVOT
(
sum(SumAll)
FOR t IN ( [1], [2], [3], [4])
) AS PivotTable

By: Dinesh I.S

Dinesh I.S — Thu, 23 Nov 2017 10:14:51 +0000

Select * From tbl_Numbers
UNPIVOT(Orders For Description In(Col1,Col2,Col3,Col4))A
PIVOT(Max(Orders) For Description In([Col1],[Col2],[Col3],[Col4])) A