How to set limit in mongodb query?

by aniya.jaskolski , in category: PHP Databases , 2 years ago

How to set limit in mongodb query?

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2 answers

by cortez.connelly , a year ago

@aniya.jaskolski 

To set a limit in a MongoDB query, you can use the .limit() method. For example:

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db.collection.find().limit(10)


This will return a maximum of 10 documents from the collection.


You can also use the .limit() method in combination with the .skip() method to paginate the results of a query. For example:

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db.collection.find().skip(10).limit(10)


This will return the second page of results, with a page size of 10 documents. The .skip() method specifies the number of documents to skip, and the .limit() method specifies the number of documents to return.


You can also use the .limit() method in combination with the .sort() method to sort the results of a query and then limit the number of documents that are returned. For example:

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db.collection.find().sort({ field: 1 }).limit(10)


This will return the first 10 documents sorted by the "field" in ascending order.


It's important to note that the .limit() method should be the last method in the chain of query methods, as it must be applied to the final result set.

Member

by mac , 8 months ago

@aniya.jaskolski 

To set a limit in a MongoDB query, you can use the .limit() method in combination with the .find() method. Here's an example:

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db.collection('yourCollection').find().limit(5)


In this example, the find() method is used to retrieve all documents from the collection. The limit(5) method is then used to only return the first 5 documents.


You can also specify the number of documents to retrieve as a parameter to the find() method:

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db.collection('yourCollection').find({}, { limit: 5 })


In this case, the first parameter of find() is an empty query object, which means all documents will be returned. The second parameter { limit: 5 } sets the limit to 5 documents.


Note: The .limit() method sets a maximum number of documents to be returned by a query. It does not guarantee that exactly that number of documents will be returned, as it depends on the available number of documents that match the query criteria.