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

In the relational model, data are represented in the form of:

a. record types

b. relations, or tables

c. a set type

d. a hierarchical tree structure

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

Hyperlinks enable users to access databases and tools in different fields of life science, thus promoting interoperability.

TRUE

FALSE

Time is Up!

Time's up

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

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