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What is transaction?
Collections of operations that form a single logical unit of work are known as transactions.
What is Object Oriented model? This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies
why older data models are being replaced by new data models.
What is Normalization? Database normalization is a data design and organization method applied to data structures based on rules that help building relational databases. In rel
Give the reasons for allowing concurrency? The reasons for allowing concurrency is if the transactions run serially, a short transaction might have to wait for a preceding long
We require an advanced system for a Sports Centre, you are concerned only with representing the data discussed below about bookings and members. (The complete system may contain ot
What are the various symbols used to draw an E-R diagram (any 3)?
Soccer player ER Diagram to Relational database schema
Illustrate how you can use QBE to perform logical AND and OR operation
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
Define two-phase locking protocol. Ans: Two-phase locking is significance in the context of ensuring that schedules are serializable. The two-phase locking protocol defines a p
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