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Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
Sequences Sequences: Automatically produce unique numbers Are sharable Are typically used to make a primary key value Replace application code Speed up t
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
What is the State Machine Engine The straightest approach to implement control is to have any way of explicitly representing and executing state machines. With the help of thi
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
A Relation Schema represented by R(A1, A2, ..., An) is made up of the relation name the list of attributes and R Ai that it contains. A relation is described as a set of tuples
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
An object-oriented design process 1. Define the context and modes 2. Designs the system architecture 3. Identifies the principal system objects 4. Identifies concurrency in
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