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Order by clause By using this rows can be sorted It is used in the last portion of select statement By default it gets ascending order DESC: is used
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
What is Structured Query Langauge (SQL)? SQL is a powerful set-oriented language which was formed by IBM research for the databases that adhere to the relational model. It havi
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
Company Database: a-)Here is the ER Model b-)Here is the Relational Model: IMPORTANT NOTICE FOR SOLUTION TYPE: ***THIS ASSIGNMENT WILL BE SOLVED BY THE
what are the main characteristics of database
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What is NULL? Simply NULL means not in value.
When every condition appears with equality condition (=) only. c) Natural join (denoted by R*S) When two join attributes have the similar name in both relations. (Tha
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