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What are the three classes of SQL expression?
SQL expression consists of three clauses:
Select
From
Where
Update Anomaly : This anomaly is occurred due to data redundancy. Redundant information makes updates more complex since, for example, varying the name of the instructor of MCS-014
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
Describes the several relationship constraints through giving suitable example? Constraints on relationships: There are two kinds of constraints on relationships. 1) Mapping
What is the purpose of storage manager? The storage manager is responsible for the following a) Interaction with the file manager b) Translation of DML commands in to low
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo
cardnality ratio for humanresource mangement system
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
exercise solution
client server architeutre
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