Base de datos
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MODULO5
BASES DE DATOS
Ing. Elinar Carrillo Riveros
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CONTENIDO
• DEFINICION DE UNA BASE DE DATOS
• ELEMENTOS DB (TABLA,REGISTRO,
CAMPO)• COMPONENTES DE DB
• TIPOS DE USUARIOS DB
•
VENTAJAS DE USO DE LA DB• USO DE LAS DB
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¿Qué es un base de datos?
• Es un conjunto d
d!tos "u st#n
o$%!n&'!do !$! unuso dt$&n!do, *!s
cu!*s son
$co*ct!dos +
o$t!dos d uns&st! d
&n-o$!c&.n d un!
$s! n%oc&o n
!$t&cu*!$/
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GESTORES DE BASE S DE
DATOS
Es un conjunto d $o%$!!s "u $&t
%st&on!$ stos d!tos/
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ELEMENTOS DE DB
• CAMPO0 E*nto
1n&co d
!*!cn!&nto• REGISTRO0 Conjunto
d c!os con
&n-o$!c&.n !soc&!d!/
• TABLA0 Conjunto d
$%&st$os
2oo%3nos con *!
&s! st$uctu$!/
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COMPONENTES DE DB
• DATOS0 Es *! BD
$o&!nt d&c2!/
• 4ARD5ARE0D&sos&t&6os d
A*!cn!&nto
•
SOFT5ARE0Conjunto d
$o%$!!s (GBD)
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TIPOS DE USUARIOS DE
DB
• P$o%$!!do$ d A*&c!c&ons0 C$!
$o%$!!s d !*&c!c&.n "u ut&*&'!n *! BD
• Usu!$&o F&n!*0 Es "u&n !ccs! ! *! BD o$d&o d un *n%u!j d consu*t! o un
$o%$!! d !*&c!c&.n
•
Ad&n&st$!do$ d *! B!s d D!tos0 s "u&ncont$o*! * s&st! d BD
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VENTAAS DE USO DE DB
• G*o7!*&'!c&.n d *! &n-o$!c&.n
• E*&&n!c&.n d *! &n-o$!c&.n $d1nd!t/
• E*&&n!c&.n d *! &n-o$!c&.n &ncons&stnt
• P$&t co!$t&$ &n-o$!c&.n/
• P$&t !ntn$ *! &nt%$&d!d d *!
&n-o$!c&.n/• T&n &ndndnc&! d d!tos
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CARACTERISTICAS DE DB
• Int$oduc&$ d!tos
• P$&t&$ !*!cn!$ d!tos
• Rcu$!$ d!tos + t$!7!j!$ con **os
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BASE DE DATOS
DISTRIBUIDAS
• B!s d d!tos s%nt!dos coun&c!d!s
o$ d&o d un! $d d cout!do$!s
d&st$&7u&d!s %o%$#-&c!nt/