In MongoDB, a write operation is atomic on the level of a single document, even if the operation modifies multiple embedded documentswithina single document. A denormalized data model with embedded data combines
# Retrieve the value of a key GET key # Delete a key DEL key # Check if a key exists EXISTS key MongoDB: // Creating a document db.CollectionName.insertOne({ field1: "value1", field2: "value2" });// Retrieve the documents db.CollectionName.find({ field1: "value1" });//...
MongoDB Data Model Storage Cluster Architecture Replic Set Sharding Summary Introduction Just like Internet, Big Data is part of our lives today. From search, online shopping, video on demand, to e-dating, Big Data always plays an important role behind the scene. Some people claim that Intern...
In simple terms, MongoDB replication is the process of creating a copy of the same data set in more than one MongoDB server. This can be achieved by using a Replica Set. A replica set is a group of MongoDB instances that maintain the same data set and pertain to any mongod process....
Sometimes, your data or processing tasks are not easily or efficiently represented using the file and directory model of storage. Examples of this include collections of key-values or large sparse tables. (NoSQL for non-files) NoSQL projects such as Cassandra, MongoDB, and HBase handle these...
Apache Cassandra vs. MongoDB MongoDB is another popular NoSQL database that is often compared to Apache Cassandra. While both databases are designed to handle large volumes of unstructured data, they have some key differences. Scalability:Both Apache Cassandra and MongoDB are designed to scale hor...
The NoSQL has a non-relational database with the likes of MongoDB from Apache.doi:10.1016/j.procs.2015.04.188IshwarappaAnuradha, J.Elsevier B.V.Procedia Computer ScienceAnuradha, J. 2015. "A Brief Introduction on Big Data 5vs Characteristics and Hadoop Technology," Procedia computer science ...
The six shards below contain partitionable data. Each of the shards is federated with all knowledge bases. Queries are run in parallel on each of the federations. The black lines show how each shard is federated with the knowledge bases. ...
1 of 2 Stéphane Maarek Stéphane Maarek is a solutions architect, consultant, and software developer who has a particular interest in all things related to big data and analytics. He is also a bestseller instructor on Udemy for his courses on Apache Kafka, Apache NiFi, and AWS Lambda. ...
Supports databases such as PostGIS, Oracle, MongoDB, Alibaba PolarDB, Huawei GaussDB, etc. Supports importing data in more than 80 formats and exporting data in more than 30 formats.Data Editing and ProcessingSupports symbolic data collection, as well as line and surface tracking vectorization. Pr...