Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Update crosstab data in sql with previous column data

Posted on 2013-05-17
1
Medium Priority
?
131 Views
Last Modified: 2013-10-23
Sample tableI have a table pl_combined_data that I would like to have additional columns of data updated from data in the same row.  If there is data in the column, I would like it to use the new data to update following columns of data.

For example (original table):

PN                   2000         2001      2002     2003     2004

100000-001     88             NULL     NULL     90
100001-001     NULL        87          87          NULL    88
100002-001     NULL        NULL     NULL      88         NULL


Desired output

PN                   2000         2001      2002     2003     2004

100000-001     88             88         88          90        90
100001-001     NULL        87          87          87        88
100002-001     NULL        NULL     NULL      88        88
0
Comment
Question by:Fairfield
[X]
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
1 Comment
 
LVL 16

Accepted Solution

by:
Surendra Nath earned 1500 total points
ID: 39175791
although I say the below code, is not very programmatic, but it should work as required.

select 
PN
,[1997]
,COALESCE([1998],[1997])		as [1998]
,COALESCE([1999],[1998],[1997]) as [1999]
,COALESCE([2000],[1999],[1998],[1997]) as [2000]
,COALESCE([2001],[2000],[1999],[1998],[1997]) as [2001]
,COALESCE([2002],[2001],[2000],[1999],[1998],[1997]) as [2002]
,COALESCE([2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2003]
,COALESCE([2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2004]
,COALESCE([2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2005]
,COALESCE([2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2006]
,COALESCE([2007],[2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2007]
,COALESCE([2008],[2007],[2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2008]
,COALESCE([2009],[2008],[2007],[2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2009]
,COALESCE([2010],[2009],[2008],[2007],[2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2010]
,COALESCE([2011],[2010],[2009],[2008],[2007],[2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2011]
,COALESCE([2012],[2011],[2010],[2009],[2008],[2007],[2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2012]
,COALESCE([2013],[2012],[2011],[2010],[2009],[2008],[2007],[2006],[2005],[2004],[2003],[2002],[2001],[2000],[1999],[1998],[1997]) as [2013]
from pl_combined_data 

Open in new window

0

Featured Post

Veeam Task Manager for Hyper-V

Task Manager for Hyper-V provides critical information that allows you to monitor Hyper-V performance by displaying real-time views of CPU and memory at the individual VM-level, so you can quickly identify which VMs are using host resources.

Question has a verified solution.

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

Long way back, we had to take help from third party tools in order to encrypt and decrypt data.  Gradually Microsoft understood the need for this feature and started to implement it by building functionality into SQL Server. Finally, with SQL 2008, …
Hi all, It is important and often overlooked to understand “Database properties”. Often we see questions about "log files" or "where is the database" and one of the easiest ways to get general information about your database is to use “Database p…
In this video, Percona Solution Engineer Rick Golba discuss how (and why) you implement high availability in a database environment. To discuss how Percona Consulting can help with your design and architecture needs for your database and infrastr…
Are you ready to place your question in front of subject-matter experts for more timely responses? With the release of Priority Question, Premium Members, Team Accounts and Qualified Experts can now identify the emergent level of their issue, signal…

604 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