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What is an E-R model? Draw an E-R Diagram for the company database with following Descriptions? The company is organized within departments. Each department has a unique name a
Consider the following relational schema: PERSON (SS#, NAME, ADDRESS) CAR (REGISTRATION_NUMBER, YEAR, MODEL) ACCIDENT (DATE, DRIVER, CAR_REG_NO) OWNS (SS#, LICENSE) Constru
A collection of a same kind of entities is known as an Entity Set or entity type. Example: For the COLLEGE database defines earlier objects of concern are Students, Faculty,
What are the drawbacks of File Oriented System in details?
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?
note on hashing technique
why are older data base model are being replaced by new data model
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
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