
2DO PARCIAL DB
Authored by Lucy Mendez
Computers
University
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29 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Analiza la siguiente sentencia y selecciona la respuesta correcta. SELECT idcliente, idfactura, year(fecha) FROM factura
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
La cardinalidad se refiere al papel que juega una entidad dentro de una relación.
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Analiza la siguiente sentencia y responde : Create table Cliente( Id int not null, Nombre varchar(20), Numero int, Primary key(id)) Crea una tabla cliente y no permite duplicados en la columna id.
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
El lenguaje SQL es propio del manejador de base de datos SQL SERVER
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Analiza la siguiente sentencia y selecciona la respuesta correcta. SELECT idcliente, idfactura, year(fecha) FROM factura
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
La cláusula "OUTER JOIN" establece que para cada registro en la primera tabla debe haber por lo menos una correspondencia en la segunda.
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
La “Intersección” es una operación que muestra los registros de un primer conjunto que no se encuentran en un segundo conjunto.
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