1. Categories >> Software >> MainFrame >> IBM MainFrame >> COBOL
  2. Suggest New Category

Explain the difference between an internal and an external
sort, the pros and cons, internal sort syntax etc.

Question Posted / guest

Answers were Sorted based on User's Feedback



Explain the difference between an internal and an external sort, the pros and cons, internal sort ..

Answer / vampire

Internal sort is manual sort use in cobol.
external sort is in jcl using inbuild program name called sort

ex

//step1 exec pgm=sort

synatx for internal sort

sort/merge sortfile on ascending/descending
key1/key2/key3,using file1/file2/input procedure is
section-1 giving file3/file4/output procedure is section-2


nobody can write syntax more than this.it is combination.

Is This Answer Correct ?    5 Yes 0 No

Explain the difference between an internal and an external sort, the pros and cons, internal sort ..

Answer / ajmal

I would like to add something to that.

External Sort's syntax

//SYSIN DD *
SORT FIELDS = (length of key, starting position of key,
CH, A/D)
/*
A - Ascending
D - Descending

Correct me if i'm wrong

Is This Answer Correct ?    3 Yes 4 No

Explain the difference between an internal and an external sort, the pros and cons, internal sort ..

Answer / mailid

Sort fields syntax is

//SYSIN DD*
SORT FIELDS=(START POSITION,LENGTH,A/D,DATATYPE)
/*

Is This Answer Correct ?    0 Yes 1 No

Post New Answer

More COBOL Interview Questions

I have the file which is having the extension no as records. sample file will look like below. 2310 3410 3256 4350 3781 5408 I need to replace the record which is starting with 3 to 5 (i.e) 3410 to 5410. How can we do it through cobol and cobol-db2 program? I need the possible logic?

5 Answers   RBS,

What is diff between vsam and db2?what is advantage of db2 over vsam?which is best suited one?

1 Answers   Fidelity,

in real time what is the suitable exp where in-stream procedure is better then catalog procedure.

1 Answers  

I have files that contains both duplicates files(occur more than twice) and non-duplicate files.The file is already sorted by a key.I want to determine those records that are duplicate and will be move to a duplicate file and non- duplicate files to be move to a valid file.thank you.help please

2 Answers  

I have a Main Program which is calling Sub-Program which is a DB2 pgm. What will happen if I am not closing the cursor used in the Sub-program? Please advise..

3 Answers   iGate,




What are some examples of command terminators?

1 Answers  

What are ISOLATION LEVELS? Where do we need to specify them in compiling JCL (Exactly which statement and what is syntax for it)?

2 Answers   T systems,

what is the use of keep and pass in disp

1 Answers  

I have a files containing both duplicate and non-duplicate records.The file is already sorted by a key.I want to determine those records that are duplicate and records that are non-duplicate.If duplicate the record is move to a duplicate file and if non-duplicate that will be move to valid file.thank you

1 Answers  

What is the difference between SEARCH and SEARCH ALL? What is more efficient?

9 Answers   IBM, iFlex, Wipro,

When is a scope terminator mandatory?

3 Answers  

without performing any operations on a file how can i know whether it contains data or not

2 Answers  

For more COBOL Interview Questions Click Here
Categories