Indexes are very important in any database, and with MongoDB it’s no different. With the use of Indexes, performing queries in MongoDB becomes more efficient. If you had a collection with thousands of documents with no indexes, and then you Continue Reading..
MongoDB provides the update() command to update the documents of a collection. To update only the documents you want to update, you can add a criteria to the update statement so that only selected documents are updated. The basic parameters Continue Reading..
Mongo DB provides query modifiers such as the ‘limit’ and ‘Orders’ clause to provide more flexibility when executing queries. We will take a look at the following query modifiers MongoDB Limit Query Results This modifier is used to limit the Continue Reading..
When the db.collection.find () function is used to search for documents in the collection, the result returns a pointer to the collection of documents returned which is called a cursor. By default, the cursor will be iterated automatically when the result of Continue Reading..
The method of fetching or getting data from a MongoDB database is carried out by using queries. While performing a query operation, one can also use criteria’s or conditions which can be used to retrieve specific data from the database. Continue Reading..
In MongoDB, _id field as the primary key for the collection so that each document can be uniquely identified in the collection. The _id field contains a unique ObjectID value. By default when inserting documents in the collection, if you Continue Reading..
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 following example shows how this can be done, Continue Reading..
In MongoDB, the first basic step is to have a database and collection in place. The database is used to store all of the collections, and the collection in turn is used to store all of the documents. The documents Continue Reading..
Mongodb is a document-oriented NoSQL database used for high volume data storage. In this free course you will learn how Mongodb can be accessed and its important features like indexing, regular expression, sharding data, etc. MongoDB Features Each database contains Continue Reading..
The installers for MongoDB are available in both the 32-bit and 64-bit format. The 32-bit installers are good for development and test environments. But for production environments you should use the 64-bit installers. Otherwise, you can be limited to the Continue Reading..