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Explain the Dynamic Hashing Techniques
There are two methods in it: extendible hashing - stores an access structure in addition to the file, and therefore is somewhat identical to indexing. The major difference is that the access structure is based upon the values that the result after application of the hash functions to the search field. The second one is, linear hashing - does not need additional access structures.
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
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Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
vertical fragmentation
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what is the importance of back up files
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