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What is meant by normalization of data?
It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the properties
Minimizing redundancy
Minimizing insertion
deletion and
updating anomalies.
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
Submission Requirements All answers must be computer generated (including text and diagrams). The hand-in version must include a header page (or with sufficient space)
Define the concept of generalization A generalization is relationship between specific kind of thing and general thing. It is also known as "is-a-kind-of" relationship. Inher
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
Create 1 experiment to demonstrate an aspect of query optimisation by using access-path structures (indexes), decomposition, or denormalisation. Once satisfied with your experiment
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
What is called a query evaluation plan? A sequence of primitive operations that can be used to assess a query is a query evaluation plan or a query implementation plan.
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
explain five responsibilities of DBA?
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