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Example RELATION SCHEMA for STUDENT: STUDENT (Roll No: string, name: string, login: string, age: integer) RELATION INSTANCE
What are the advantages and disadvantages of merging an association into a class? Advantages: i) Less number of tables ii) Faster performance due to the fewer tables
What will be create when a primary key if combined with a foreign key? A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
What is the need of a log in a DBMS? Briefly describe the various types of records that are normally present in a log. Ans: The system log, which is generally writt
what do you mean by consistency in rdbms?
A field-groups statement or an insert statement reverses storage space and transfers values. False.
Implementing software control To implement software control designer must redesign strategy of state event model which is present in dynamic model. There are three basic ap
Which method is used to key transformation ? A hash method is used to key transformation.
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
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