What are the methods available in storing sequential files ?
Answers
Explanation:
The methods available in storing sequential files are:
Straight merging.
Natural merging.
Polyphase sort.
Distribution of Initial runs....
Answer:
Explanation:
Sequential Files Definition:
Records are arranged in a sequential file according to the order in which they were entered. The records are in a set order. Only sequential reading and writing is permitted for records in sequential files. You cannot shorten, lengthen, or remove a record once it has been added to a sequential file.
There are four methods available in sorting sequential files :
- Straight merging
- Natural merging
- Polyphase sort
- Distribution of Initial run
Straight merging:
With the straight merge, the initial records are split between the two tapes a and b so that they each have the same amount of records or just one more than the other.
Natural merging:
Bottom-up merge sort has been enhanced by natural merge sort. It locates pairs of subsequences that are already ordered and combines them. First, all pairs of sorted subsequences in the sequence 7 4 6 3 1 2 8 5 are combined, except for 5, which is not combined.
Poly phase sort:
A bottom-up merge sort variation known as a polyphase merge sort sorts a list using an initial distribution of sub-lists that is uneven (runs).
Distribution of Initial run:
Initial Distribution refers to the issuance, on the Effective Date, of shares of the Company's Class A common stock and Class B common stock, respectively, to the holders of Extendicare Inc. Subordinate Voting Shares and Multiple Voting Shares, in accordance with the Plan of Arrangement that Extendicare Inc. will file.
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