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Differance between Open addressing and chaining for collision resolution ?
In open addressing, proceeding from the occupied position specified by hash address the program checks the subsequent positions in order until an unused (empty) position is found.
Chaining: In this method various overflow locations are kept, commonly by extending the way with a number of overflow positions. In addition, a pointer field is added to each record location. A collision is resolved by placing the latest record in an unused overflow location and setting the pointer of occupied hash address location to the address of in which overflow location. A linked list of overflow records for every hash address is therefore maintained.
Short Note on mid Square Method of hashing? Mid square method of hashing: In the method midsquare hashing, the key is squared and the address selected from the center of the s
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Indexed (Indexed Sequential) File Organisation It organises the file like a big dictionary, i.e., records are kept in order of the key but an index is stored which also allows
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Heap files (unordered file) Mostly these files are unordered files. It is the easiest and most basic type. These files having of randomly ordered records. The records will have
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