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Explain the term- Periodic recomputation Periodic recomputation: Base values are often updated in bunches. Sometimes, it is possible to just recompute all derived attributes p
What is document scanning and imaging? Document scanning and imaging, or digital archiving, is the method of scanning a document into a digital image to archive and retrieve a
Discuss deferred update technique of recovery. What are the advantages? Ans: The deferred update methods do not physically update the database on disk till after a transact
Define Database layer? The database layer defines the data formats used in the database.
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
What is the use of group by clause? Group by clause is used to apply aggregate functions to a set of tuples. The attributes given in the group by clause are used to
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
Give an example of enforcement in Typing. You can understand the idea of enforcement as it makes sure objects of dissimilar classes may not be interchanged as below: Exampl
Database systems have many opposite efforts ?
What is database utility? Database utility is the interface among the ABAP/4 Dictionary and the underlying the SAP system.
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