Question
Which one of the following is called a red planet?
Solution
Mars is often called the 'Red planer' because it appears in the sky as an orange-red star.
Which SQL query will correctly calculate the average salary of employees in each department and group them by department in a table named 'employees'?
Which SQL clause is used to summarize data?
What is the result of SELECT COALESCE(NULL, NULL, 5, 10);?
Which of the following stores historical data for analysis?
In OLAP, “Slice and Dice” means:
Which of the following is a key process in ETL?
Which of these is NOT an ensemble method?
Which type of schema normalizes dimension tables to reduce redundancy?
A Fact Constellation Schema is also called:
Which analytics type is focused on predicting future outcomes?