slecting multiple distinct columns..

[vvyshak]

Hi all...
I have a table in which some columns has distinct values and some has
duplicates..i wan to select all the columns with distinct values....no
problem if rows has null value in it....i tried a lot wit distinct and
group by but nothing got worked out...
Waitin for your reply.....
Thanking you...

[jennifer1970]

Try the Having clause
For example, this will bring back records that have duplicate records
for Col1, Col2 and Col3.

If you want only records that have a single record, you can change ">
1" to "= 1".

SELECT DISTINCT
Col1, Col2, Col3, COUNT(*) as NumberDups
FROM SomeTable
GROUP BY Col1, Col2, Col3
HAVING COUNT(*) > 1
Of course, you could post your table definitions with Create statements
and insert statements so people could have data to work with to help
you.

vv*****@gmail.com wrote:

Hi all...
I have a table in which some columns has distinct values and some has
duplicates..i wan to select all the columns with distinct values....no
problem if rows has null value in it....i tried a lot wit distinct and
group by but nothing got worked out...
Waitin for your reply.....
Thanking you...

[Erland Sommarskog]

(vv*****@gmail.com) writes:

I have a table in which some columns has distinct values and some has
duplicates..i wan to select all the columns with distinct values....no
problem if rows has null value in it....i tried a lot wit distinct and
group by but nothing got worked out...
Waitin for your reply.....

I will have to admit that I have a poor understanding of what you are
asking for. But there is a standard recommendation for this sort of
questions, and that is that you post:

o CREATE TABLE statements for your table(s).
o INSERT statements with sample data.
o The desired output, given the sample data.
o A short description of the underlying business problem.
--
Erland Sommarskog, SQL Server MVP, es****@sommarskog.se

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