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Aggregation ReferenceΒΆ

Aggregation Commands Comparison
A comparison of group, mapReduce and aggregate that explores the strengths and limitations of each aggregation modality.
Aggregation Framework Operators
Aggregation pipeline operations have a collection of operators available to define and manipulate documents in pipeline stages.
SQL to Aggregation Mapping Chart
An overview common aggregation operations in SQL and MongoDB using the aggregation pipeline and operators in MongoDB and common SQL statements.
Aggregation Interfaces
The data aggregation interfaces document the invocation format and output for MongoDB’s aggregation commands and methods.
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