Syntax to copy a collection from one database to another in MongoDB:

Mahesh Kumar Yadav answered on August 24, 2022 Popularity 1/10 Helpfulness 1/10

answer Syntax to copy a collection from one database to another in MongoDB:

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Syntax to copy a collection from one database to another in MongoDB:

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db.collection_name.find().forEach(function(d){ db.getSiblingDB('target_db')['collection_in_target'].insert(d); });

Where
collection_name is source collection to be copied
target_db is the target database to copy a collection to.
collection_in_target will be name in target database.

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Source: r2schools.com

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Contributed on Apr 09 2024

Mahesh Kumar Yadav

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copy one mongodb collection to another

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db.<SOURCE_COLLECTION>.aggregate([ { $match: {} }, { $out: "<TARGET_COLLECTION>" } ])

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Source: stackoverflow.com

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Contributed on Aug 24 2022

Brainy Baboon

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copy one mongodb collection to another

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// copy one mongodb collection to another 
db.<SOURCE_COLLECTION>.aggregate([ { $match: {} }, { $out: "<TARGET_COLLECTION>" } ])

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Source: Grepper

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Contributed on Oct 27 2022

Zealous Zebra

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Syntax to copy a collection from one database to another in MongoDB:

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