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What is the function of SQL Server Agent Windows service?
- It's a Windows service that handles tasks scheduled within SQL Server environment. These tasks are also known as job and are stored with in SQL server. Jobs may run through a trigger, a predefined schedule or on demand.
- This service is very beneficial in determining why a specific job didn't run as intended.
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
Define Assertions in SQL a. An assertion is a predicate that is expressing a condition we wish the database to always satisfy. b. Domain constraints, functional dependency
List the internal controls that should be in effect solely because a EDP system is employed, classifing them as (1) Those controls pertaining to input of information and (2) All ot
Every School has many teachers and many students. Each student is assigned to one school and each teacher works for one school only. Each teacher teaches more than one subject but
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
Normal 0 false false false EN-US X-NONE X-NONE
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
Define canonical cover? A canonical cover Fc for F is a set of dependencies like F logically implies all dependencies in FC and Fc logically shows all dependencies in F.
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