Informatics Practices
An aggregate function performs a calculation on …………… and returns a single value.
- single value
- multiple values
- no value
- none of these
SQL Queries
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Answer
multiple values
Reason — An aggregate function performs a calculation on multiple rows and returns a summary result for a group of rows.
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Related Questions
Predict the output of the following query :
SELECT MOD(9, 0);- 0
- NULL
- NaN
- 9
The avg() function in MySQL is an example of …………… .
- Math function
- Text function
- Date Function
- Aggregate Function
Fill in the blanks:
The functions that work with one row at a time are called _________ functions.
Fill in the blanks:
The functions that work with multiple rows and return aggregated result, are called _________ _________ functions.