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What is MongoDB?
- Scalable high performance open source, document oriented database.
- MongoDB is an open source document database written in C++.
- Document oriented
- Stores JSON like documents
- Includes a strong query language
MongoDB in a nutshell:
- Document oriented storage
- JSON style documents with dynamic schemas offer simplecity and power
- Full index support index on any attribute, just like you are used to.
- Rich, document based query language
- Flexible aggregation and data processing
MongoDB connector for Apache Spark:
- Native scala connector, sertified by databricks
- Exposes all spark APIs and libraries
- Efficient data filtering with predicate pushdown, secondary indexes and in database aggregations
- Locality awareness to reduce data movement
RDBMS and MongoDB differ:
Comparisons between the Mysql and MongoDB:
|Main points||Table, row, column||Collection, document, field|
|Best used for|