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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
What kind of advantages to copying records from one table to another? -) When an algorithm that modifies a table is used after that it's safer to work with the copy -) When
properties of derirable decomposition
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
Consider the relations: PROJECT(proj#,proj_name,chief_architect) EMPLOYEE(emp#,emp_name) ASSIGNED(proj#,emp#) Use relational algebra to express the subsequent queries: (i) Get
Illustration of implementation of inheritance Let us take the illustration of implementation of inheritance. Suppose that we are about to implement the Stack class and by now w
A table joined with itself is called ? A table joined with itself is known as self join table. Normal 0 false false false EN-IN X-NONE X-NONE
WHAT IS DSS? WRITE ITS REQUIREMENTS.
Describe the difference between a one-to-many and a many-to-many relationship. Which logical data structures comprise one-to-many and which comprise many-to-many relationship?
Explain the concept of Modeling With Objects A model is a conceptual representation of a specification, design or system from a particular point of view. A modelling language
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
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