Data Types Quiz

Quiz covering Transform and Load the Data

Questions in this quiz

A preview of the 5 questions covered. Start the quiz above to answer them, check your score, and read the explanations.

1. 1

   Which data type is most appropriate for storing a customer's phone number if you do not plan to perform mathematical calculations on it?

2. 2

   You are importing a CSV file where a column represents currency values (e.g., $1,250.50). Which data type conversion is necessary to perform aggregate functions like SUM or AVG?

3. 3

   During the 'Transform' stage, you encounter a date column formatted as 'DD-MM-YYYY'. Which action should you take to ensure compatibility with most database systems?

4. 4

   What is the primary risk of using an 'Integer' data type for a column that contains values like '00123'?

5. 5

   When loading data into a schema with strict typing, you have a column with mostly integers but a few 'N/A' strings. How do you handle this to prevent a load failure?