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Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
A distributed transaction consists of subtransactions that execute at different sites and access local DBMSs at those sites. For example, a distributed transaction that transfers m
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
If the deletion violates referential integrity constraint, then three alternatives are available: Default option: - refuse the deletion. It is the job of the DBMS to describ
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
what is correlation in nested query
File Organisation In Dbms Introduction Databases are used to store information. Usually, the principal operations we have to perform on database are those relating to:
1. Determine the set of minimal functional dependencies for the following data. The local bakery, Happy Cakes, needs your help designing a database that will support a kiosk in
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