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What are the aggregate objects in the data dictionary?
What does the cardinality ratio specify? Mapping cardinalities or cardinality ratios state the number of entities to which another entity can be associated. Mapping cardinaliti
diagrams and meaning
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
Define the step - Rearranging the Execution Order for Efficiency As we know that algorithm and data structure are closely related to one another, but data structure is conside
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
Hashed File Organisation Hashing is the most common form of purely random access to a database or file. It is also used to access columns that do not have an index as an optimi
Differentiate sub-class and super-class? The specialization of a class is known as subclasses.eg: employee is a subclass of person and teller is a subclass of employee. Convers
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
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