This performance benefit increases based on the complexity of the pipeline and size of the data being aggregated. You can use $lookup to create a view over two collections and then run queries against the view Create and query views in mongodb using `db.createcollection ()` or `db.createview ()` with examples and restrictions.
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Manage views in compass by creating, opening, duplicating, modifying, and dropping views using the aggregation pipeline builder.
Creates a view as the result of the applying the specified aggregation pipeline to the source collection or view
You must create views in the same database as the source collection. A mongodb view is a queryable object whose contents are defined by an aggregation pipeline on other collections or views Mongodb does not persist the view contents to disk. Creating a view requires obtaining an additional exclusive lock on the system.views collection in the database
This lock blocks creation or modification of views in the database until the command completes.