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Attributes that are directly kept in the data base. For example, 'Birth date' attribute of a person. Derived Attributes that are not stored directly but can be derived
Differentiate between horizontal & mixed horizontal fragmentation?
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
gyan gurukul is a software company that provides software related solution.
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
What is Cardinality Ratio? Cardinality Ratios - The cardinality ratios for relationship kinds specifies the maximum number of relationship instances in which an entity can pa
prototype of a distributed information system for a national car part retail outlet chain.
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
Illustrate different types of Locks in SQL Server. There are three kinds of locks in SQL Server i.) Shared locks - These are used for operations which don't allow any update
Implementation and SQL Applications
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