En una consulta se quiere dos un campos, la sentencia correcta es:
EXAMEN SQL

Quiz
•
Instructional Technology
•
1st Grade
•
Hard
Adriana Forero
Used 88+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Concatenar(ud,"",sueldo)
concat(apellidos.(apellidos,' ',nombres)
unir(apellidos,' ',nombres)
concate(nombres,' ',apellidos)
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Seleccione la sentencia SQL correcta al crear las dos foreign key de la tabla detalle_producto_proveedor
CONSTRAINT `fk_prod` FOREIGN KEY (`idProducto`) REFERENCES `productos?proveedor` (`idProducto`) CONSTRAINT `fk_prov` FOREIGN KEY (`idProveedor`) REFERENCES `proveedores` (`idproudcto`) ) ENGINE=InnoDB
CONSTRAINT `fk_prod` FOREIGN KEY (`idProducto`) REFERENCES `productos` (`idProducto`) CONSTRAINT `fk_prov` FOREIGN KEY (`idProveedor`) REFERENCES `proveedores` (`id`) ) ENGINE=InnoDB
CONSTRAINT `fk_CatPro` FOREIGN KEY (`idCategoria`) REFERENCES `categoria` (`id`)CONSTRAINT `fk_prod` FOREIGN KEY (`idProducto`) REFERENCES `productos` (`idProducto`)
Ninguna de las anteriores
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sentencia Sql para actualizar el campo precio a 4000
update productoss set codigo= 4 y codigo= 4000
update from productos set precio = 4000 and where cdigo =4
update productos set precio = 4000 where codigo = 4
update productos where precio = 4000
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
¿Que sentencia permite consultar todos los datos de una tabla 'Persons' donde el valor de la columna 'FirstName' sea 'Peter'
SELECT [all] FROM Persons WHERE FirstName='Peter'
SELECT [all] FROM Persons WHERE FirstName LIKE 'Peter'
SELECT * FROM Persons WHERE FirstName='Peter'
SELECT * FROM Persons WHERE FirstName<>'Peter'
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Que sentencia permite consultar todos los datos de una tabla 'Persons' donde el valor de la columna 'FirstName' comiencen con la letra 'a'?
SELECT * FROM Persons WHERE FirstName LIKE ='a'
SELECT * FROM Persons WHERE FirstName LIKE '%a'
SELECT * FROM Persons WHERE FirstName='%a%
SELECT * FROM Persons WHERE FirstName LIKE 'a%'
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
¿Qué query es correcta?
SELECT Nombres, COUNT(Nombres) FROM Clientes ORDER BY Nombres
SELECT Nombres, COUNT(Nombres) FROM Clientes
SELECT Nombres, COUNT(Nombres) FROM Clientes GROUP BY 2
SELECT Nombres, COUNT(Nombres) FROM Clientes GROUP BY 1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para seleccionar de la tabla CLIENTES los Nombres que se repiten más de 10 veces debería hacer
SELECT Nombres, COUNT(NOMBRES) FROM Clientes WHERE COUNT(NOMBRES) > 10
SELECT Nombres, COUNT(NOMBRES) FROM Clientes WHERE COUNT(NOMBRES) > 10
SELECT Nombres, COUNT(NOMBRES) >10 FROM Clientes GROUP BY 1
SELECT Nombres, COUNT(NOMBRES) FROM Clientes GROUP BY 1 HAVING COUNT(NOMBRES) > 10
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