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Database concepts Advantages, Purpose and Applications of database Relational Data Model And Important terms Introduction to MySQL Classification of MySQL Statements MySQL Data Types MySQL DataBase Commands
Important Questions
Q.1.Define Relations?
Show AnswerIn relational data model, the data is organised into tables(in the form of rows and columns) called relations.
Q.2.Define Domain?
Show AnswerA domain is the sets of values from which the actual values appearing in a given column are drawn.
Q.3.Define Tuple?
Show AnswerA row in a relation.
Q.4.Define Attribute?
Show AnswerA column in a relation.
Q.5.Define Primary Key?
Show AnswerA column or set of columns that uniquely identifies a row within a table is called primary key.
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