Grokking MongoDB
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MongoDB Aggregation $out
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The $out stage in MongoDB's aggregation framework is used to write the resulting documents of the aggregation pipeline to a specified collection. This stage is particularly useful when you want to save the results of an aggregation operation for further use or analysis. It can replace the contents of an existing collection or create a new one if it does not already exist.

Syntax

{
  $out: "<collection>"
}
  • $out: The operator used to specify the output stage.
  • collection: The name of the collection where the results should be written.

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Table of Contents

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