More Previous year papers Questions
Which of the following commands is part of the Transaction Control Language (TCL) in SQL?
Which SQL query will correctly calculate the average salary of employees in each department and group them by department in a table named 'employees'?
A snowflake schema is different from a star schema because:
What is the main purpose of a data mart?
Which of these is NOT an ensemble method?
Which schema in data warehousing uses a central fact table connected to dimension tables?
Which type of OLAP allows analysis of multidimensional data stored in relational databases?
What does "drill-down" operation in OLAP do?
A data cube allows analysis by:
Fact constellation schema is best described as:
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