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Fundamentos de Bases de Datos 4-A

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Fundamentos de Bases de Datos 4-A

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Fundamentos de Bases de Datos - Algebra Relacional

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Luis Angel Chacon Zuñiga
Luis Angel Chacon Zuñiga
Costa Rica

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Fundamentos de Bases de Datos 4-A
 

Fundamentos de Bases de Datos 4-AOnline version

Fundamentos de Bases de Datos - Algebra Relacional

by Luis Angel Chacon Zuñiga
1

Operaciones fundamentales en algebra relacional

2

Selecciona tuplas que cumplen con un predicado dado.

3

Selecciona solo ciertas columnas de una tabla y descartar el resto.

4

Mezclar dos conjuntos de datos en una sola tabla, eliminando duplicados.

5

En álgebra relacional es como quitar elementos de un conjunto de datos basado en otro conjunto

6

Combinar todas las filas de una tabla con todas las filas de otra tabla

7

En algebra relacional el siguiente símbolo U representa la operación de:

8

En algebra relacional el siguiente símbolo π representa la operación de:

9

En algebra relacional el siguiente símbolo σ representa la operación de:

10

En algebra relacional el siguiente símbolo ∩ representa la operación de:

 
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