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what is binary relationship
explain at least five widly used case tools
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
An example of a weak entity is Staff because the availabilityID cannot be uniquely identified unless it is used in conjunction with the foreign key known as availabilityID in the A
What is a data dictionary? A data dictionary is a data structure which keeps Meta data about the structure of the database i.e. the schema of the database.
Define Catalog and meta data ? A catalog is a compilation of records elaborating the contents of a particular collection or group of collections. Metadata (Meta data, or someti
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
MOSS VALE is a town with 15000 inhabitants. The fire department wishes to develop a system that automates the despatch of fire engines to attend fires. The ERD below describes the
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