.

[Or]

I'm confused - you want to achieve something but you don't want to use the specific function that achieves that something? Could you perhaps clarify what the end goal and why keepchar() isn't the right solution? That might allow a solution to be tailored to your specific needs.

[adiey_26]

This is an Assignment and my mentor wants me to use loops so keepchar is
not relevant in this case.
Thanks.

[Kashyap_R]

Hi 

Use this

PurgeChar(LOWER(amdnam),'abcdefghijklmnopqrstuvwxyz')

Thanks and Regards 

Kashyap.R

[marcus_sommer]

If it should be loop-approach it meant that this task is aimed as programmer-lesson and not to solve a real case.

Nevertheless you starting with something like this:

load *, here could you place any checking logic;
load mid(Field, iterno(), 1) as Char
resident Source while iterno() <= len(Field);

- Marcus

[vwkjbkavb2]

If your mentor gave you this assignment it means there is a lesson in it for you, you should focus on solving it yourself rather than asking for the answer on community. Anyways, below is a script I wrote which could be a possible solution. 

table:
load * inline [
accountid
bcejhbq6vv726
kbceb82873bacnkbch
bjkdvkbkb9812891
ajbcui2222BKBBAKB
];
let vx = peek('accountid',$(i),'table');
let vn = NoOfRows('table');
for i=0 to $(vn)-1
for j=1 to len(peek('accountid',$(i),'table'))
let vy = mid(peek('accountid',$(i),'table'),$(j),1);
if(isnum(mid(peek('accountid',$(i),'table'),$(j),1))=0) then
t$(i):
load mid(peek('accountid',$(i),'table'),$(j),1) as accountid$(i)
autogenerate 1;
ENDIF
next j
tfinal:
load concat(accountid$(i),'',recno()) as account_id
resident t$(i);
drop table t$(i);
next i
drop table table;