Update Process Examine the diagram above, which contains the processing order for a transaction file and a master file for a sequential file update process.

Indicate the order in which the transactions are processed. Indicate which master file records are updated and which are read and written, unchanged, into the new master file.

Also illustrate the relationship between the transaction file and the master file, that is, T = M, T M, in your answer.

How would the update change if a direct access file is used instead?

Transcribed Image Text:

Order of Transaction Master File File Records Records Order of Processing Processing (Key) (Key) 1 Data 1 Data 6 2 8 3 9 4 10 5 13 6 11 7 15 8 17 9 10 11 12 13 14 15 16 17 18 19 20