Hi

For internal sort you need to code a program by specifying the sort criteria and that the program need to be compiled and linked.

But in case of External sort there is no need for coding the program.Moreover you can change the sort criteria just by changing the sort parameters that passed thru the SYSIN card.

So the external sort is more efficient compared to internal sort.In case of internal sort if you want to modify the SORT criteria you need to repete the entire procees of changing the program compile and linking it.

Thank you

Krishy

Hi

For internal sort you need to code a program by specifying the sort criteria and that the program need to be compiled and linked.

But in case of External sort there is no need for coding the program.Moreover you can change the sort criteria just by changing the sort parameters that passed thru the SYSIN card.

So the external sort is more efficient compared to internal sort.In case of internal sort if you want to modify the SORT criteria you need to repete the entire procees of changing the program compile and linking it.

rajesh

There are two ways to do sorting :

1. Cobol program - sort statement

2. using JCL

sorting using cobol prog called as internal sort and sorting using jcl called as external sort.

Offcourse External sort is better because we can sort a file in 4 steps only. In internal sort we have to write complex code.

As a programmer i use short cut method but it depands upon the work.

thanks

manoj.