Answer / chaudhry

Logical backup involves reading a set of databse records
and writing them into a file. Export utility is used for
taking backup and Import utility is used to recover from backup.

Answer / vivek

Logical backup is a process of extracting data in the form
of SQL statements,where it is useful to recover in case the
objects ate lost.The main drawback of this backup is that MEAN
TIME TO RECOVER is high.

Answer / brajendra arzare

Logical backups are backups in which the export utility
(for example exp) uses SQL to read database data and then
export it into a binary file at the operating system level.
We can then import the data back into a database using the
import utility (imp).

What is hot backup (in case of oracle)?

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Explain what are tp-lite and tp-heavy monitors?

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Is a database a file?

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What is package in dbms?

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What is a foreign key constraint?

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Enlist the various transaction phases.

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What are the main characteristics of database approach?

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What are stored-procedures? And what are the advantages of using them.

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How many types of database language exist?

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Explain primary key and composite key.

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Single File Database: Develop a student record management program, which uses single file as its database. It is not supposed to create additional files at any part of the project and should never rewrite total content. It must be capable of storing 100000's of records. It should support variable length records to be added, deleted, modified, listed.

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What is metadata in dbms?

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