Master SQL for Data Analysis - Filtering Conditions (WHERE) – Part 2

The video tutorial explains the use of logical operators in queries, focusing on AND, OR, NOT, and IN. It covers how to use these operators to filter records based on multiple conditions, emphasizing the importance of order and parentheses to avoid errors. Examples demonstrate selecting records with specific criteria, and best practices for constructing queries are discussed.

What is the primary function of the 'AND' operator in SQL queries?

• To return records if all conditions are true

• To return records if any condition is true

• To exclude records that meet a condition

• To specify multiple values for a condition

When using the 'OR' operator, what happens if one condition is true?

• All conditions must still be checked

• The 'AND' conditions are prioritized

• The record is returned immediately

• The query will fail

Why is it important to use parentheses when combining 'AND' and 'OR' conditions?

• To make the query run faster

• To ensure the correct order of operations

• To include more conditions

• To avoid syntax errors

What does the 'NOT' operator do in a SQL query?

• Excludes records that meet a condition

• Combines multiple conditions

• Includes records that meet a condition

• Specifies a range of values

How does the 'IN' operator simplify SQL queries?

• By allowing multiple values for a condition

• By prioritizing 'OR' conditions

• By combining conditions with 'AND'

• By excluding certain records