Question
If sin A = √3/2, then what will be the value of sec²
A?Solution
sin A = √3/2
⇒ sin A = sin 60°
⇒ A = 60°
⇒ sec² A = (sec 60°)² = (2)² = 4
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 schema uses multiple fact tables sharing dimension tables?
Which of the following is used to maintain information about the structure of a data warehouse?
Which type of data warehouse is focused on specific business lines or departments?
Which type of slowly changing dimension (SCD) preserves full history by adding a new row for each change and using effective date ranges?
A Fact Constellation Schema is also called:
A surrogate key is:
Which OLAP operation allows users to view data at different levels of granularity?
A star schema in a data warehouse consists of:
Which operation in OLAP allows selecting a single dimension from a cube?
