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CUARTO - GUIA Y ACTIVIDAD 1

Estimados estudiantes, les comparto la guía y el ejercicio para el ciclo 3

GUIA UNIDAD 1 HODDER

EJERCICIO CICLO 3

GUIA UNIDAD 1 Oxford

Octavo - BD relacionales

Imagen
First, open this link (about 10 minutes)

Then:

Relational databases:


Based on the video, answer the questions below.
1) What's the idea of using "relational databases" instead of "flat-file databases"? 2) Why is better to organise a new table in the middle of the first two as the video shows? 3) Explain with your own words the idea of the relationship "one to many"
And now investigate briefly the terms, remember to save this in order to find it quickly.
4) What's the meaning of "WYSIWYG"? 5) One problem of the databases is the "data redundancy", explain the meaning and describe: How you can avoid it?

Finally, email the document to: mdominguez@cas.edu.co from your institutional e-mail.