Computing P2 questions

[cieko..]

i got confused in some of the topics .
1. difference between recursion and iteration.
2. is it necessary to learn how to 'delete a record' from serial file?
3. syntax and function of LOCATE.
4. Use of translator diagnostics, break points, stepping and variable check/watch.

Please provide me with the answers as soon as possible... plzzz..

 

[psycoist14]

hmm.. recursion is a programming technique in which the routine calls itself...iteration describes the process of repeating a set of instructions as a part of a loop cmd..
LOCATE [FOR lExpression1] [Scope] [WHILE lExpression2] [NOOPTIMIZE]
it locates the particular location of the display..

i hope its necessary to learn how to delete a record from a serial file as the question related to it is in sp as well...