Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Using TSQL to Return Column Data as Rows

Posted on 2016-10-04
3
57 Views
Last Modified: 2016-10-05
Thank you all in advance!

I have table: TableA

RowID Greeting  IDINS  VerifyApt
108            y            y              y
109            y            n              y
110            y          OOS          y

I would like to create a new table, TableB from the data in TableA that looks like:

ROWID        Step           DATA
108          Greeting            y
108             IDNS               y
108         VerifApt              y
109         Greeting             y
109             IDNS                n
109          VerifyApt            y
110          Greeting            y
110              IDNS               y
110         VerifyApt            y


Is this a PIVOT? UNPIVOT? The SQL I found kept referring to an aggregate function but as you can see, I dont need one.

Thank you all again.
0
Comment
Question by:Victor Nares
3 Comments
 
LVL 69

Accepted Solution

by:
Scott Pletcher earned 500 total points
ID: 41828452
I'd use CROSS APPLY for this:

SELECT
    RowID,
    which_column AS Step,
    CASE which_column
    WHEN 'Greeting' THEN Greeting
    WHEN 'IDINS' THEN IDINS
    WHEN 'VerifyApt' THEN VerifyApt
    ELSE '?'
    END AS DATA
FROM /*your_table_name*/ (
    VALUES(108,            'y',            'y',              'y'),
    (109 ,           'y' ,           'n',              'y'),
    (110,            'y'  ,        'OOS',          'y')
) AS your_sample_data(RowID, Greeting, IDINS, VerifyApt)
CROSS APPLY (
    VALUES('Greeting'),('IDINS'),('VerifyApt')
) AS which_columns(which_column)
0
 
LVL 40

Expert Comment

by:Sharath
ID: 41828540
try UNPIVOT
declare @table table (RowID int, Greeting varchar(1), IDINS varchar(1), VerifyApt varchar(1))
insert @table values (108,'y','y','y'),(109,'y','n','y'),(110,'y','y','y')

select RowID, Step, DATA
  from @table
unpivot (DATA for Step IN (Greeting,IDINS,VerifyApt)) p
/*
RowID	Step	DATA
108	Greeting	y
108	IDINS	y
108	VerifyApt	y
109	Greeting	y
109	IDINS	n
109	VerifyApt	y
110	Greeting	y
110	IDINS	y
110	VerifyApt	y
*/

Open in new window

1
 

Author Closing Comment

by:Victor Nares
ID: 41830185
This worked Great!
0

Featured Post

NFR key for Veeam Backup for Microsoft Office 365

Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

I'm trying, I really am. But I've seen so many wrong approaches involving date(time) boundaries I despair about my inability to explain it. I've seen quite a few recently that define a non-leap year as 364 days, or 366 days and the list goes on. …
Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
Via a live example, show how to backup a database, simulate a failure backup the tail of the database transaction log and perform the restore.
Via a live example, show how to set up a backup for SQL Server using a Maintenance Plan and how to schedule the job into SQL Server Agent.

838 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question