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tell me the functionality,advantages and disadvantages of student database
give me a diagram about physical or internal level
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
What is OCR? OCR (Optical Character Recognition) is a technology that enables you to change different types of machine-readable documents, like scanned paper documents, PDF fil
What is a recovery scheme? An integral part of a database system is a recovery scheme that can restore the database to the reliable state that existed before the failure.
Explain the integrity constraints: Not Null, Unique, Primary Key with an example each. Is the combination 'Not Null, Primary Key' a valid combination. Justify. Not Null - Shou
A distributed database is defined as "a collection of multiple logically interrelated database which are physically distributed over a computer network" (a) Give any three advan
Give an example of Object Representation For illustration, consider the implementation of a social security number within an employee object that is shown in Figure. The soci
Write a query to define tables students and teachers as sub tables of people? Create table students of student under people Create table teachers of teacher under people
(a) Why did SAP introduce the extended star schema?
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