Question
1 + 1 + 1/2+ 1/3 + 1/6 + 1/4 is equal to
____ What will come in place of the question mark (?) in the following question?Solution
1 + 1 + 1/2+ 1/3 + 1/6 + 1/4 (12+12+6+4+2+3)/12 = 39/12 = 3.25
Which of the following best describes a Data Warehouse?
ETL stands for:
A surrogate key is:
A snowflake schema is different from a star schema because:
Which OLAP operation involves focusing on a subset of dimensions (e.g., region=‘Asia’)?
Which of the following is a real-time data warehouse application?
Which of the following is NOT a common OLAP operation?
What is a data mart?
Which of the following commands is part of the Transaction Control Language (TCL) in SQL?
In a star schema, what is the main advantage of using surrogate keys in fact tables?