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What is object containment? References among objects can be used to model dissimilar real-world concepts.
Discuss along with examples about several types of attributes present in the ER model? Types of Attributes are: • SIMPLE attributes are attributes which are drawn from the ato
Consider the relations City (city_name, state) Hotel (name, address) City_hotel (hotel_name, city_name, owner) Answer the following queries in relational algebra (i) Find
Describe the types of attributes? Types of attributes: An attribute's category determines the type of values that are permitted in the attribute. For instance, the value vers
How to reduce data redundency
Whst is logical schema ? Logical schema is the entire database.
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
The primary key is selected from the
How can one distinguish among different kinds of parameters? Input parameters are used to pass data to subroutines. Output parameters are used to pass data from subrout
ERD Diagram of Medical Recruitment Agency?
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