MongoDB
C100DBA · Question #35
Which of the following is true about aggregation framework?
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MongoDB Fundamentals
Question
Which of the following is true about aggregation framework?
Options
- AEach aggregation operator need to return atleast one of more documents as a result
- Bthe aggregate command operates on a multiple collection
- CPipeline expressions are stateless except accumulator expressions used with $group operator
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Topics
#aggregation framework#pipeline#accumulator expressions#$group