Re: Using REGEXP_REPLACE

I think what's wrong is probably the last parameter which should be $1 not
just 1.
The other thing is that what you may need is to remove the characters, so
you should put a caret character before a set l[A-za-z]'.

Regex is not difficult but tricky you have to play a while to get what you
want.

Javier.


El lun, 11 jul 2022 a las 10:22, Stephen Landess (<steve_landess@xxxxxxxxxxx>)
escribió:

Our system is running IBM i 7.3 with the latest PTF's and TR's (PTF's and
TR's installed in the last 2 weeks).

Jerry Ven recently asked questions about extracting the numeric values
from a character field to use as a key for joining the file to another
file which has a numeric key.

I believe that someone had suggested using the SQL REGEXP_REPLACE scalar
function.

Searching for examples, I found this:

https://stackoverflow.com/questions/56151437/ibm-db2-select-numeric-characters-only-from-a-column

which gave the following example:


SELECT REGEXP_REPLACE(
'123Red345', '[A-Za-z]','',1)
FROM sysibm.sysdummy1

indicating that this statement should return the value '123345'.

However, when I run this SQL statement it returns the value
'123Red345'.

What gives?

Regards,
Steve Landess
(512) 289-0387
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