Question
If ‘’ means
‘addition’, ‘%’ means ‘multiplication’ and ‘$’ means ‘division’, then 55 > 24 $ 4 < 8 % 6 = ?Solution
55 > 24 $ 4 < 8 % 6 =? 55 + 24 ÷ 4 – 8 × 6 55 + 6 – 48 13
A star schema in a data warehouse consists of:
A snowflake schema differs from a star schema mainly because:
Which of the following is used to maintain information about the structure of a data warehouse?
In a data warehouse, which type of table stores quantitative data for analysis?
What is the result of SELECT COALESCE(NULL, NULL, 5, 10);?
Which OLAP operation involves focusing on a subset of dimensions (e.g., region=‘Asia’)?
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 function returns the total number of rows in a table?
Which SQL keyword is used to combine results from two queries and remove duplicates?
What is a data mart?
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