====== pears.digitsonly ======
Generated schema reference. Regenerate this page from the SQL unload; keep hand-maintained business notes in the narrative namespace.
===== Original SQL =====
create function "pears"."digitsonly"(
/* Application Maintained Function / Procedure - DO NOT EDIT*/
in "s" char(100) )
returns char(100)
begin
declare "rv" char(100);
declare "c" char(1);
declare "i" smallint;
set "rv" = '';
set "i" = 1;
while "i" <= "length"("s") loop
set "c" = "substr"("s","i",1);
if "c" like '[0123456789]' then
set "rv" = "rv"+"c"
end if;
set "i" = "i"+1
end loop;
return("rv")
end