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What is object containment?
References among objects can be used to model dissimilar real-world concepts.
What are the function of DBA?
Haw does it work one database application
Types of Data fragmentation
Which is the properties of entities? Attributes is the properties of entities.
why three level architecture had been developed/
Question 1 Explain the functions of the following Storage Manager Buffer Manager Transaction Manager 2 Discuss about system catalog in a relational DBMS 3
What is data model? Explain object based and record based data models? Ans: A data model is an abstract model in which describes how data is represented and accessed. (i)
what is meant semantic query optimization? how does it differ from other query optimization techniques?
A video rental company has several branches. The data held on each branch is the branch address made up of street, city, state, and zip code, and the telephone number. Ea
Hierarchical
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