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What are the benefits of OOA technology?
Using OOA technology can produce many benefits, such as:
i) Reusability of code
ii) Productivity is gained through direct mapping
iii) Maintainability, through this simplified mapping to real world is possible.
What is Management System? A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delet
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
Explain different categories of failures that occur in Oracle database? Categories of Failures - In Oracle database subsequent types of failures can occurred: Statement Failu
WRITE SHORT NOTES ON INDEX STRUCTURE OF FILES? There are two basic parts of indices 1. Ordered indices 2. Hash indices Every technique must be evaluated on the bas
Differance between internal and external schema? Internal and external schema: Internal Schema • Describes the physical storage structure • Uses a physical data model External
growing phase and shrinking phase are disjoint, why ?
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
What is relational model feature? A relational model feature is much more data independence than some other database models.
How to Insert data in your table from another table? insert into e.g, To insert tuples from employee into N_emp created above, use following statement Insert into N_emp
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
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