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

Remove last character from column conditionally

Posted on 2014-09-08
3
204 Views
Last Modified: 2014-09-08
Hi,

I would like to be able to update a table variable in that if the third character is a 9 then I need to remove the last character.

This is what I am using currently:
UPDATE @Table
      SET Tag = (SELECT LEFT(Tag, LEN(Tag) - 1) WHERE SUBSTRING(Tag,3,1) = 9)

This has the correct effect on the rows where the character is 9, but the other rows where the third character is not 9 are updated to NULL.

Any help would be appreciated.
Thanks
0
Comment
Question by:Morpheus7
3 Comments
 
LVL 40

Accepted Solution

by:
Kyle Abrahams earned 500 total points
ID: 40310059
UPDATE @Table
      SET Tag = case when  SUBSTRING(Tag,3,1) = 9 then LEFT(Tag, LEN(Tag) - 1)  else Tag end
0
 
LVL 69

Expert Comment

by:Scott Pletcher
ID: 40310169
UPDATE @Table
       SET Tag = LEFT(Tag, LEN(Tag) - 1)
WHERE SUBSTRING(Tag,3,1) = '9'
0
 

Author Closing Comment

by:Morpheus7
ID: 40310177
Many thanks, that's great.
0

Featured Post

Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
length of the password hash sha1:64000 to set sql field property. 13 66
t-sql need help on t-sql 10 25
Amazon RDS migrate to SQL Server 3 24
SQL 2012 clustering 9 10
Introduction SQL Server Integration Services can read XML files, that’s known by every BI developer.  (If you didn’t, don’t worry, I’m aiming this article at newcomers as well.) But how far can you go?  When does the XML Source component become …
International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
Viewers will learn how the fundamental information of how to create a table.

809 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