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Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
What is relationship? Give examples A relationship is an association between several entities. Example: A depositor relationship associates a customer with every account tha
What is schema
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
WHAT IS DBMS
Improved availability: The data in a distributed system may be replicated so that it is at more than one site. Thus, the failure of a node or a communication link does not necessar
First Normal Form and second normal form First Normal Form (1NF) A relation is said to be in 1NF if it having no non-atomic values and each row can give a unique combinat
Update Operations and Dealing with Constraint Violations There are three basic operations to be executes on relations: Insertion Deletion Update The INSER
what do you mean by primary key constraint?
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