What is bulk write in MongoDB?
MongoDB is a versatile documentum based NoSQL database and has the ability to perform DB write operations efficiently by means of its bulkWrite() method. That means multiple documents can be inserted/updated/deleted in one shot. This method can be used in multi-document transactions.
What is bulkWrite?
bulkWrite() takes an array of write operations and executes each of them. By default operations are executed in order. See Execution of Operations for controlling the order of write operation execution.
Which function is used to insert more records in MongoDB collection?
insertMany() method. insertMany() is a mongo shell method, which can insert multiple documents. This method can be used in the multi-document transactions.
Which method is used to insert multiple documents in MongoDB?
What are bulk operations?
Bulk operations are actions that are performed on a large scale. Example bulk operations tasks include importing or exporting items, changing prices on a mass scale, and assigning products to a warehouse. For each individual task of a bulk operation, the system creates a message that is published in a message queue.
What is the principal implication of using a bulk write operation in MongoDB?
bulkWrite() method provides the ability to perform bulk insert, update, and remove operations. MongoDB also supports bulk insert through the db. collection.
What is Upsert MongoDB?
In MongoDB, upsert is an option that is used for update operation e.g. update(), findAndModify(), etc. If the value of this option is set to true and the document or documents found that match the specified query, then the update operation will update the matched document or documents.
Can we insert array in MongoDB?
MongoDB Array of Objects using insert() with Example The “insert” command can also be used to insert multiple documents into a collection at one time. The below code example can be used to insert multiple documents at a time. The output shows that those 3 documents were added to the collection.