problem 1: Illustrate the meaning of the term sorting?

problem 2: Describe the concept of sort-key? Is it possible to sort a file on more than one key?

problem 3: Give your comments on the given:

SORT ON ASCENDING KEY STU-ID-NUM
USING STU-RECORDS-FILE
GIVING SORT-OUT-FILE.

Find out the major key, minor-key and the final sorted file.

problem 4: Given two sorted files FILE-A and FILE-B. prepare down a program in the COBOL to merge these files into FILE-C by using MERGE verb?

problem 5: Distinguish between sorting and merging of files.

problem 6: prepare down a COBOL program to merge FILE-A, FILE-B and FILE-C to produce merged file MERGE-FILE as illustrated in table below:

FILE-A     FILE-B      FILE-C      MERGE-FILE
10             20            15               10
30             40            25               15
50             60            35               20
70                                               25
                                                  30
                                                  35
                                                  40
                                                  50
                                                  60
                                                  70