recursive

[tha_ndut]

hi guys,
how to recursively apply the concept of repetitionin progress?

thank you

 

[jdpjamesp]

What's the concept of repetition? Recursion in Progress is easy. Just create a function/procedure that calls itself. Make sure you have a valid stop condition. The only thing to point out is that Progress doesn't handle many levels of recursion too well in my experience and will eventually run out of resources.

 

[tha_ndut]

please give me an example of a recursion program.

thank you.

 

[jdpjamesp]

This code takes a string and moves each of the characters on one.

FUNCTION RecursiveTransform RETURNS CHARACTER
  (INPUT ip-string AS CHAR):
  IF ip-string EQ "" THEN
    RETURN "".
  RETURN CHR(ASC(SUBSTRING(ip-string,1,1)) + 1) + RecursiveTransform(SUBSTRING(ip-string,2)).
END. 

MESSAGE RecursiveTransform("abcde")
  VIEW-AS ALERT-BOX INFO BUTTONS OK.

 

[Rob Fitzpatrick]

please give me an example of a recursion program.

thank you.

Is this an academic exercise, or is there an actual problem you are trying to solve? Finding a solution and then looking for a problem to apply it to is not the right approach, IMHO.

 

[tha_ndut]

hi,
how to recursion in temp-table?

 

[jdpjamesp]

I've no idea what you mean. Maybe if you tell us exactly what you are trying to achieve and what you have tried we might be able to help first.

 

[RealHeavyDude]

The same way how you would design a recursive or structured database table. You can find tons of information on database design out in the internet.

Heavy Regards, RealHeavyDude.