Convert Columns to Row in SQL

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Convert Columns to Row in SQL

jeganbenitto.francis

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Points: 956
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December 16, 2013 at 7:07 am

#146445

Can Anyone please help me in below requirement
i have a row as below
1 AAAA BBBB CCCC DDDD EEEE FFFF GGGG HHHH
I want the output as follows
AAAA BBBB CCCC DDDD
EEEE
FFFF
GGGG
HHHH
But i dont want to use UNPIVOT..
Thanks in advance

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ChrisM@Work SSC Guru Points: 186127 More actions · Answer 1

SELECT ColAAAA, ColBBBB, ColCCCC, ColDDDD, ColEEEE

FROM Sometables

CROSS APPLY (

SELECT colEEEE UNION ALL

SELECT colFFFF UNION ALL

SELECT colGGGG UNION ALL

SELECT colHHHH

) x

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

Lowell SSC Guru Points: 323504 More actions · Answer 2

jeganbenitto.francis (12/16/2013)
Can Anyone please help me in below requirement
i have a row as below
1 AAAA BBBB CCCC DDDD EEEE FFFF GGGG HHHH
I want the output as follows
AAAA BBBB CCCC DDDD
EEEE
FFFF
GGGG
HHHH
But i dont want to use UNPIVOT..
Thanks in advance

the tool to use is the unpivot operator.

if you don't want to use it, then you could try using a stack of unions:

your fake data obscure the real issue a lot, hopefully this points you in the right direction.

SELECT AAAA,BBBB,CCCC,DDDD As DDDD UNION ALL

SELECT AAAA,BBBB,CCCC,EEEE As DDDD UNION ALL

SELECT AAAA,BBBB,CCCC,FFFF As DDDD UNION ALL

SELECT AAAA,BBBB,CCCC,GGGG As DDDD UNION ALL

SELECT AAAA,BBBB,CCCC,HHHH As DDDD

Lowell

--help us help you! If you post a question, make sure you include a CREATE TABLE... statement and INSERT INTO... statement into that table to give the volunteers here representative data. with your description of the problem, we can provide a tested, verifiable solution to your question! asking the question the right way gets you a tested answer the fastest way possible!

jeganbenitto.francis SSC Eights! Points: 956 More actions · Answer 3

ChrisM@Work ,

Thanks for your reply. I am getting below Error

Ambiguous column name colEEEE .

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 4

jeganbenitto.francis (12/16/2013)
ChrisM@Work ,
Thanks for your reply. I am getting below Error
Ambiguous column name colEEEE .

Without a table name or column names to work with, I made up the names of the columns used in the query. Substitute your actual table name and column names.

Somewhere in my query you will have to name the output column - either the first select as a column alias, or after the table alias.

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden