Data Schema Overview

Question 1

What are the 4 table relationships in ServiceNow?

Answer 1

1. One-to-many
2. Many-to-many
3. Database view
4. Extensions

Question 2

What’s the difference between Field Name and Field Label?

Answer 2

Field Name: is a system-friendly unique term the system uses to identify a field

Field Label: is a user-friendly term which allows users to identify fields in the user interface.

Question 3

If a table is not extended from another table, what fields does it come by default?

Answer 3

Global Default fields

Question 4

What Request, Incident and Problem tables have in comum?

Answer 4

They have Task table as their parent class

Question 5

Where do you go to add a different label to an extended table?

Answer 5

To add a different label for an extended table, navigate to All > System Definition > Language File

Question 6

Where do you set the permission to extend a table?

Answer 6

From a table’s Extensible field (true/false)

Question 7

What is the purpose of the Dictionary overrides feature?

Answer 7

Define a field on a child table differently from a field from their parent table. (Default values, dependencies, read-only)

Question 8

What are Base tables?

Answer 8

They are tables that can be extended to other tables, but they themselves don’t extend any table .

Question 9

What is the function of a Schema Map?

Answer 9

Provide a graphical representation of other tables related to a specific table

Question 10

What 2 modules you can use to create a new table?

Answer 10

Tables & Columns
Tables

Question 11

What are 2 things generated by default when creating a new table?

Answer 11

Application menu with the same name as the table
Module with the plural of the table label