Remove punctuation, spaces and capitalization using DB2 SQL Query

Hi to all,

I have a question. Can we remove punctuation, spaces and capitalization from the field using DB2 SQL query or not? Actually, I come to the point where I need to compare a field excluding all the punctuation, spaces and capitalization. In other words just including alpha-numeric characters. Is there any DB2 SQL function to return just alpha-numeric characters out of string field?

If there is any confusion or any further question, please feel free to ask me.

Sharad Bajracharya
Who is Participating?
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.

you may get a better response in the DB2/UDB topic area

what particular version and OS of DB2 are you using?

you can/should be able to achieve what you desire....

the REPLACE FUNCTION TO replace all the punctuation symbols that are present
(unfortuantley you have to specify each one)
and use UPPER to convert everything to the same (upper case (or LOWER) )



Upper(STRIP(COLUMNNAME,B,' '))          -- remove leading and trailing spaces from the column and convert to upper case...  
,',','')                                                    -- convert commas to empty strings
,' ','')                                                    -- convert embedded spaces to empty strings
,'.','')                  -- fullstops
,'''','')                 -- single quotes
,'"','')                 -- double quotes may need to use '""',''  

and so one keep adding replace (.... ,string to replace, emmpty string) until all the puncutation is gone....

you may want to establish this is a view on the table...

alternativly you could put this into a stored procedure of function depending on the DB2/UDB version.


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

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.