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How nulls are treated in comparison operator? Along with comparison (relational) operators, the null values are ignored as we cannot derive the relation along with the given op
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
how map binary relation one to one
What is Functional Dependency? A Functional dependency is shown by X Y among two sets of attributes X and Y that are subsets of R specifies a constraint on the possible tuple
What is Derived and stored Attribute? Derived and Stored Attribute - In a few cases, two or more attribute values are associated, for example, Age and BirthDate attributes of a
Project Description: This is going to be a School portal to handle each activities in school such as, School fees payment, online registration and every other payment, course re
DISADVANTAGES OF RDBMS
Developer is required to do a task including: - Database Normalization - Database Analysis - ERM Diagram Details can be provided and then you can change your bid accord
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
coventions for displaying an ER schema as ER diagram
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