More व्याकरण Questions
Data cleansing is primarily concerned with:
What is a data mart?
Which type of OLAP allows analysis of multidimensional data stored in relational databases?
Which SQL function returns the total number of rows in a table?
A snowflake schema differs from a star schema mainly because:
In the context of a relational database, which of the following is NOT a characteristic of a candidate key ?
Which of the following is a key process in ETL?
Which of the following is used to maintain information about the structure of a data warehouse?
Which of the following best describes a fact constellation schema in a data warehouse?
Surrogate keys are used in data warehouses because:
