Remove special characters

Greetings!

I would like some assistance to remove the | sign ONLY, if the Category IDs start with |

Example: Per highlighted screenshot, I would like to remove the | in the front of the column. I would like to leave the | for the rest to help separate the numbers. Thanks!

 remove pipeline
Member_2_7967487Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Ryan ChongBusiness Systems Analyst , ex-Senior Application EngineerCommented:
try like:
select *, 
case when charindex('|',CategoryIDs)=1 then substring(CategoryIDs,charindex('|',CategoryIDs)+1,len(CategoryIDs)-1) else CategoryIDs end New_CategoryIDs from Items

Open in new window

or
select *, 
case when charindex('|',CategoryIDs)=1 then substring(CategoryIDs,2,len(CategoryIDs)-1) else CategoryIDs end New_CategoryIDs from Items

Open in new window

Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
I think using left is more effective:
select *, case when left(CategoryIDs,1) <> '|' then CategoryIDs else substring(CategoryIDs,2,8000) end CategoryIDs2 from Items

Open in new window

Vitor MontalvãoMSSQL Senior EngineerCommented:
Please test this in a DEV environment before running in Production:
UPDATE Items
SET CategoryIDs = SUBSTRING (CategoryIDs ,2, LEN(CategoryIDs)-1)  
WHERE LEFT(CategoryIDs,1) = '|'

Open in new window

Scott PletcherSenior DBACommented:
You should use LIKE, because it is "sargable", rather using any function on the column, which is not sargable.  Thus, indexes could be far more efficiently used with LIKE.

I've also found STUFF to be more efficient than SUBSTRING to remove a char(s).

Therefore, my code would be:

UPDATE ...
SET CategoryIDs = STUFF(CategoryIDs, 1, 1, '')
WHERE CategoryIDs LIKE '|%'

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Query Syntax

From novice to tech pro — start learning today.