CS-03: FILE STRUCTURE & PROGRAMMING IN COBOL
DEC 2000

Prepared by: Little Bit Heaven

Time: 2 hours

Max Marks: 60

NOTE : There are 5 questions in this paper. Question number 1 is compulsory and carries 40 marks. Attempt any three from the rest.

1. (a) How is database approach different from the COBOL Programming approaches? In what situations is COBOL Programming better than database systems?
(b) What is the use of having four divisions of COBOL program? what is the need of these division? of each 
(c) Compare and contrast the characteristics of indexed sequential file organisation with relative file organisation. What are the types of applications where relative file organisation may be preferred over indexed sequential organisation? 
(d) "Input errors are the cause of more programming problems than any other type if error". What programming constructs in COBOL may be used to identify input errors?
(e)  How is table represented in COBOL? How is a value to be searched in this table? Explain with the help of two examples.
2. Write a Program in COBOL for creating an indexed master file for a software 
storehouse, which keeps the following files:
Software Stock file:
            Software Code                     :       8 Characters
            Number of copies available   :        5 digits
            Software description             :      50 Characters
Sales file:
           Software Code                      :        8 Characters
           Customer Code                     :        8 Characters
           Customer Name                    :      25 Characters
           No. of copies sold                 :        5 Characters
           Date of sale                           :       8 Characters
The index master which needs to be created includes:
          Software code                       :         8 Characters
          Software description              :        50 Characters
          No. of copies left                   :         5 digits
          after processing stock
          file with sales file
3. A departmental store had two branches. Both the branches keep information about the items using the following format:
Item File:  (The file is not sorted)
      Item Code                                :           5 Characters
      Item Name                               :          25 Characters
      Acquired Stock                        :          10 digits
      Item Type                                :            1 Characters
Due to some reason one of the departmental store branches was closed down. All the items of this branch were moved to other branches.

Write a program in COBOL to create a unified item file of the individual item files of the departmental store branches. Please note that both the departmental store branches were having few common items.
4. Write a program in COBOL to print the best performance of a salesperson from each zone using the following transaction file:
SALES DATA: (Not sorted)
         Zone number             :          1 digit (only five zones to be assumed)
         Salesperson number  :          1 digit (only five salesperson in each zone)
         Salesperson name     :        25 Characters
         Amount of sales        :           8 digits
         Date of sales             :          8 Characters
Please note the following:
  • There are maximum  5 zones an d 5 salespersons in each zone
  • Each salesperson may have made many sales.
  • The records of transaction file are not in any order.
  • The output needs to include the zone number and the salesperson number and name of  the salesperson who has made the maximum sales in that zone.
5. Explain the following COBOL verbs with one example each:
(a) REDEFINES clause
(b) PERFORM with VARYING statements
(c) MOVE CORRESPONDING statement
(d) STRING statement
(e) GOTO statement

 

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