Limit Document For Free

To limit the records in MongoDB, you need to use limit() method.

The maximum BSON document size is 16 megabytes. The maximum document size helps ensure that a single document cannot use excessive amount of RAM or, during transmission, excessive amount of bandwidth. To store documents larger than the maximum size, MongoDB provides the GridFS API.

Since capped collections store documents in the order of the disk storage, it ensures that the document size does not increase the size allocated on the disk. Capped collections are best for storing log information, cache data, or any other high volume data.

Summarizing all the experiments: Mongo Atlas can easily cope with updating records under 1 million. Even updateMany will succeed in minutes. But be aware of the short spike in CPU usage to about 100%.

In MongoDB, limit() method is used to limit the fields of document that you want to show. Sometimes, you have a lot of fields in collection of your database and have to retrieve only 1 or 2. In such case, limit() method is used. The MongoDB limit() method is used with find() method.

Mongodb max document size is 16 MB, we can store more than 16 MB records in one document by using GridFS, its store large documents in multiple chunks. GridFS is stored multiple files as per requirement, this is used to recall the particular section of the file without reading all the data from the memory.

The limit() function in MongoDB is used to specify the maximum number of results to be returned. Only one parameter is required for this function.to return the number of the desired result.