Computer Science, asked by asmitharontukey, 10 months ago

the main components of database

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Answered by naveenmahto0

Explanation:

Explanation:Below is a list of components within the database and its environment.

Explanation:Below is a list of components within the database and its environment.Software. This is the set of programs used to control and manage the overall database. ...

Explanation:Below is a list of components within the database and its environment.Software. This is the set of programs used to control and manage the overall database. ...Hardware. ...

Explanation:Below is a list of components within the database and its environment.Software. This is the set of programs used to control and manage the overall database. ...Hardware. ...Data. ...

Explanation:Below is a list of components within the database and its environment.Software. This is the set of programs used to control and manage the overall database. ...Hardware. ...Data. ...Procedures. ...Database Access Language. ...

Answered by tathwik

Answer:

Components of a Database Management System

Published On July 02, 2013 - by Admin

Organizations produce and gather data as they operate. Contained in a database, data is typically organized to model relevant aspects of reality in a way that supports processes requiring this information. Knowing how this can be managed effectively is vital to any organization.

What is a Database Management System (or DBMS)?

Database Management System

Organizations employ Database Management Systems (or DBMS) to help them effectively manage their data and derive relevant information out of it. A DBMS is a technology tool that directly supports data management. It is a package designed to define, manipulate, and manage data in a database.

Some general functions of a DBMS:

Designed to allow the definition, creation, querying, update, and administration of databases

Define rules to validate the data and relieve users of framing programs for data maintenance

Convert an existing database, or archive a large and growing one

Run business applications, which perform the tasks of managing business processes, interacting with end-users and other applications, to capture and analyze data

Some well-known DBMSs are Microsoft SQL Server, Microsoft Access, Oracle, SAP, and others.

Components of DBMS

DBMS have several components, each performing very significant tasks in the database management system environment. Below is a list of components within the database and its environment.

Software Icon

Software

This is the set of programs used to control and manage the overall database. This includes the DBMS software itself, the Operating System, the network software being used to share the data among users, and the application programs used to access data in the DBMS.

Hardware Icon

Hardware

Consists of a set of physical electronic devices such as computers, I/O devices, storage devices, etc., this provides the interface between computers and the real world systems.

Data Icon

Data

DBMS exists to collect, store, process and access data, the most important component. The database contains both the actual or operational data and the metadata.

Procedures Icon

Procedures

These are the instructions and rules that assist on how to use the DBMS, and in designing and running the database, using documented procedures, to guide the users that operate and manage it.

Access Language

Database Access Language

This is used to access the data to and from the database, to enter new data, update existing data, or retrieve required data from databases. The user writes a set of appropriate commands in a database access language, submits these to the DBMS, which then processes the data and generates and displays a set of results into a user readable form.

Query Processor Icon

Query Processor

This transforms the user queries into a series of low level instructions. This reads the online user’s query and translates it into an efficient series of operations in a form capable of being sent to the run time data manager for execution.

Run Time

Run Time Database Manager

Sometimes referred to as the database control system, this is the central software component of the DBMS that interfaces with user-submitted application programs and queries, and handles database access at run time. Its function is to convert operations in user’s queries. It provides control to maintain the consistency, integrity and security of the data.

Data Manager Icon

Data Manager

Also called the cache manger, this is responsible for handling of data in the database, providing a recovery to the system that allows it to recover the data after a failure.

Database Engine Icon

Database Engine

The core service for storing, processing, and securing data, this provides controlled access and rapid transaction processing to address the requirements of the most demanding data consuming applications. It is often used to create relational databases for online transaction processing or online analytical processing data.

Data Dictionary Icon

Data Dictionary

This is a reserved space within a database used to store information about the database itself. A data dictionary is a set of read-only table and views, containing the different information about the data used in the enterprise to ensure that database representation of the data follow one standard as defined in the dictionary.

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Report Writer

Also referred to as the report generator, it is a program that extracts information from one or more files and presents the information in a specified format. Most report writers allow the user to select records that meet certain conditions and to display selected fields in rows and columns, or also format the data into different charts.

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