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Write short notes on relational model
The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an example of a record based model.
Describe a technique for direct search? Explain how data is stored within a file so which direct searching can be performed. For a file of unordered fixed length records by u
Have database built but having problems with some questions that go with the database
why are older data base model are being replaced by new data model
Explain the Fundamental concepts of object-orientation Software developers, data base administrators (DBAs) need to be familiar with fundamental concepts of object-orientation.
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
The domain that you will model in this assignment is that of courses and students at a university. So as not to make the task too large and unspecified, you will here get a descrip
what is Mapping Constraints? with examples
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
What are the costs to be considered when a transaction has to be rolled back when recovering from deadlock? Ans: A few transaction will must rolled back (made a victim)
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