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db.collection.dataSize()

db.collection.dataSize()

mongo Shell Method

This page documents the mongo shell method, and does not refer to the MongoDB Node.js driver (or any other driver) method. For corresponding MongoDB driver API, refer to your specific MongoDB driver documentation instead.

Returns:The size in bytes of the collection.

Data compression does not affect this value.

This method provides a wrapper around the size output of the collStats (i.e. db.collection.stats()) command.