information system, Database Management System

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what are information system hirarchy?

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The advantages of a database management system, The advantages of a databas...

The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.

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DML Precompiler All the DBMS have two basic sets of Languages - Data Definition Language (DDL) that have the set of commands needed to define the format of the data that is b

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What are the several forms of identity? a) Value b) Name c) Built-in

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What function divides one numeric expression by another and returns the remainder? MOD function divides one numeric expression by another and returns the remainder.

Join relation of two tuples, Consider the join of a relation R with relatio...

Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz

HYRISE, how to implement hyrise in C plus plus

how to implement hyrise in C plus plus

What is the use of rename operation, What is the use of rename operation? ...

What is the use of rename operation? Rename operation is used to rename both relations and an attributes. It uses the as clause, taking the form: Old-name as new-name.

Define variable-length records arise in database, What are the ways in whic...

What are the ways in which the variable-length records arise in database systems? Storage of many record types in a file. Record types that permit variable lengths for one o

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Explain data independence ? Data independence is the capacity to modify the schema at one stage of a database system without having to change the schema at the further level.

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