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What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
Physical Records These are the records that are stored in the secondary storage devices. For the database relation, physical records are the group of fields kept in adjacent me
The insertion of a tuple in the aim of reference does not cause any destruction. Though, insertion of a tuple in the relation in which, we has the foreign key, for instance, in ASS
What is NULL? Simply NULL means not in value.
Question : (a) Differentiate between database integrity and database security (b) Database security involves measures to avoid loss of privacy and loss of confidentiality. D
What is a hashing function? What are the properties of a good hashing function? Describe the folding technique for hashing functions. Ans: Hashing function is a method
task upload
Describe a technique for direct search? Explain how data is stored within a file so which direct searching can be performed. For a file of unordered fixed length records by u
Which is another name for weak entity? Child is another name of weak entity.
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