Computer scienceFundamentalsSQL and DatabasesDBMSMongoDBOperations and operators

Aggregate operations

Aggregation stage operators

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	$group	$limit	$match	$sort
Sorts the input documents based on a specified field or fields in ascending or descending order and outputs the sorted documents to the next stage in the pipeline.
Limits the number of documents that are outputted to the next stage in the pipeline.
Groups the input documents by a specified key and performs calculations on the grouped data using accumulators.
Filters the input documents based on specified conditions and outputs only the matching documents to the next stage in the pipeline.

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