LO5AL: Open access scientific resources: Digital databases

Welcome to your LO5AL: Open access scientific resources: Digital databases

Which of the following is NOT a basic component of a relational data model?

a. columns

b. domain

c. formula

d. degree

AS is a keyword in SQL that is used to rename a column or table using an alias name

TRUE

FALSE

Data redundancy is:

a. a method that structures data in such a way that problems are decreased or avoided

b. the procedure of using logs and backup copies to recreate a database that has been damaged

c. computer programs used for the creation, management and query of databases

d. storage of the same data piece in two or more places in the database system

Oracle is a self-repairing, self-securing and self-driving database designed to eliminate manual data management.

TRUE

FALSE

Data manipulation represents:

a. reference of tuples using foreign keys

b. principal approach for creating information for decision making

c. unique identification of each entity in the relational database

d. assumption of values by a foreign key that either match a primary key that is present in the database or are completely null

Time is Up!

Time's up

By Sisa|2022-08-23T17:07:26+00:00July 22nd, 2022|0 Comments

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