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Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
What are the benefits of document scanning? Document scanning, in addition to being cost-efficient, also enhances productivity. This service enhances security as you set the pa
Create Relational Database Model (RDM) for Sailing bed and breakfast club Table_Name( attribute_1, attribute_2, attribute_3, ? ,attribute_x) Primary Key ( attribute_1, attribute_2)
WHAT IS MEANT BY E-R MODEL
explain concept of decomposition?
Domain Constraint It shows that each attribute in a relation has to contain an atomic value only from the corresponding domains. The data types associated with commercial RDBMS
(1) Insert into PERSON Violated constraint: - Key constraint Reason: - Primary key 1 already exists in PERSON. Dealing: - DBMS could ask the user to provide valid PER
Explain the components of Database System in details.
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
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