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Articles tagged with #mongodb
A replica set in MongoDB is a group of mongod processes that maintain the same data set. Replica sets provide redundancy and high availability, and are the basis for all production deployments. Source: Replication — MongoDB Manual. www.mongodb.com/do...
Aggregation operations process data records and return computed results. Aggregation operations group values from multiple documents together, and can perform a variety of operations on the grouped data to return a single result. By using the built-i...
MongoDB Charts is a tool to create visual representations of your MongoDB data. Data visualization is a key component to providing a clear understanding of your data, highlighting correlations between variables and making it easy to discern patterns ...
For relational databases, transactions ensure data integrity. These are set of instructions that satisfies the conditions of the ACID (atomic, consistent, isolated, and durable) property test. For example, it may require to complete all SQL statemen...
Sharding is a method for distributing data across multiple machines. MongoDB uses sharding to support deployments with very large data sets and high throughput operations. MongoDB supports horizontal scaling through sharding by dividing the system da...
The $set operator replaces the value of a field with the specified value. If the field does not exist, $set will add a new field with the specified value, provided that the new field does not violate a type constraint. Sources: $Set — MongoDB Manual...
