MongoDB – Delete Document In this chapter, we will learn how to delete a document using MongoDB. The remove() Method MongoDB”s remove() method is used to remove a document from the collection. remove() method accepts two parameters. One is deletion criteria and second is justOne flag. deletion criteria − (Optional) deletion criteria according to documents […]
Category Archives: mongodb
MongoDB – Indexing Indexes support the efficient resolution of queries. Without indexes, MongoDB must scan every document of a collection to select those documents that match the query statement. This scan is highly inefficient and require MongoDB to process a large volume of data. Indexes are special data structures, that store a small portion of […]
MongoDB – Sharding Sharding is the process of storing data records across multiple machines and it is MongoDB”s approach to meeting the demands of data growth. As the size of the data increases, a single machine may not be sufficient to store the data nor provide an acceptable read and write throughput. Sharding solves the […]