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Explain controlled redundancy?
Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
define normalisation and functional dependency
Explain four causes for failures in data warehouse projects
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
waht is a repeating group?
what is natural join?
Data Fragmentation "Fragmentation includes decomposing the data in relation to non-overlapping component relations". Why do we require fragmenting a relation?
er diagtram for icici
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
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