The VARIANCE() function in DB2 returns the ________ of the values in a column.
- Variance
- Standard Deviation
- Mean
- Median
The correct option is 1. The VARIANCE() function in DB2 calculates the variance of the values in a column, which represents how much the values in the column deviate from the mean value of the column.
Loading...
Related Quiz
- How does data compression impact database performance in DB2?
- Scenario: A DBA is optimizing the performance of a DB2 application that frequently processes large result sets. How can the use of cursors be optimized in this scenario?
- How does DB2 handle transactions involving cursors?
- Scenario: A developer is designing a new database schema in DB2 and wants to ensure robust data integrity. What strategies can they implement during the design phase?
- What are the advantages of using triggers over stored procedures in certain scenarios?