Return Serial Number As Per change Records

Question

Return Serial Number As Per change Records

Gaurav Srivastava

SSChasing Mays

Points: 621
More actions
April 15, 2015 at 8:46 pm

#316648

Sir
I have a five rows such AS
pd_id pd_name
11 Prod-1
22 Prod-2
33 Prod-2
44 Prod-3
55 Prod-4
When I Use Query
Select sr_no=ROW_NUMBER() OVER(ORDER BY pd_name),pd_id,pd_name
From Product
it display
sr_no pd_id pd_name
1 11 Prod-1
2. 22 Prod-2
3. 33 Prod-2
4. 44 Prod-3
5. 55 Prod-4
is it possible to display when change of product????
sr_no pd_id pd_name
1 11 Prod-1
2 22 Prod-2
2 33 Prod-2
3 44 Prod-3
4 55 Prod-4
means on prod-2 should be same serial number.
kindly suggest??????

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Jeff Moden SSC Guru Points: 1004329 More actions · Answer 1

itsgaurav (4/15/2015)
Sir
I have a five rows such AS
pd_id pd_name
11 Prod-1
22 Prod-2
33 Prod-2
44 Prod-3
55 Prod-4
When I Use Query
Select sr_no=ROW_NUMBER() OVER(ORDER BY pd_name),pd_id,pd_name
From Product
it display
sr_no pd_id pd_name
1 11 Prod-1
2. 22 Prod-2
3. 33 Prod-2
4. 44 Prod-3
5. 55 Prod-4
is it possible to display when change of product????
sr_no pd_id pd_name
1 11 Prod-1
2 22 Prod-2
2 33 Prod-2
3 44 Prod-3
4 55 Prod-4
means on prod-2 should be same serial number.
kindly suggest??????

SELECT sr_no = DENSE_RANK()OVER(ORDER BY pd_name)

,pd_id

,pd_name

FROM dbo.Product

;

... and please see the article at the first link under "Helpful Links" in my signature line below for future posts, please.

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)