Top 12 NoSQL Document Databases
Businesses use different types of databases depending on the type of data they handle and their needs. Some data items have a uniform structure that allows them to fit into a table-based database. Businesses use relational databases to store this type of data. However, some data items do not have a uniform structure and thus cannot be stored in a table. Some good examples in the business environment include business emails and articles. Although these documents have some structural elements such as titles, subjects and the names of authors, their structure is not rigid enough to be stored in an organized table structure. In this case, the data or document is termed as semi-structured or unstructured and relational databases are unlike to be effective. The best option is to utilize NoSQL document databases if your organization handles this type of data.
In Document-oriented database implementation, documents encapsulate and encode data in some standard formats or encodings. Encodings in use include XML, YAML, and JSON as well as binary forms like BSON, PDF and Microsoft Office documents such as MS Word, Excel. In comparison to relational databases, the collections could be considered analogous to tables and documents analogous to records. Documents are addressed in the database via a unique key that represents that document. Other than using the simple key-document (or key-value) lookup to retrieve a document, the database also offers an API or query language that retrieves documents based on their contents.
Top NoSQL document databases : OrientDB, MarkLogic, MongoDB, IBM Cloudant, BaseX, InterSystems Caché, Couchbase Server, CrateDB, Apache CouchDB, Azure Cosmos DB, eXist DB, IBM Informix are some of the Top NoSQL document databases.
What are NoSQL Document Databases?
NoSQL document databases are based on a model that does not require SQL and tables, unlike relational databases. Instead of using tables with the data types, columns, rows, schemas, and tabular relations used in relational databases, NoSQL databases use documents with data type descriptions and values. Groups of data or documents are known as collections and serve the same purpose as tables in relational databases. Documents can have the same or different structures depending on what the user wants. Users can add new objects without modifying the entire database. NoSQL databases use various encodings and formats to encode and encapsulate data. The common encodings include XML, JSON, YAML and binary forms such as PDF, BSON, MS Excel, and MS Word. Document-oriented databases allow users to store, retrieve, and manage data and documents. Organizations usually use NoSQL document databases to store semi-structured or unstructured data such as user data, messaging data, device data, images and videos.
- Data/ Document Storage – NoSQL document databases allow organizations to store simple data without using complex SQL codes. Users can quickly store their data without compromising reliability.
- Data Querying – This is an important feature because database users need to retrieve data. Different NoSQL databases use different tools and techniques to query each document in the database and group the results in a dataset. Many NoSQL document databases use the mapping and reduction technique to query collections and generate results.
- Database Management Tools – These tools allow database users to insert, modify, and delete data from the database. Users perform these tasks without a predefined schema.
- ACID Properties – These properties are available in some NoSQL databases. The acronym ACID stands for:
- Atomicity – The database remains unchanged if a transaction is incomplete.
- Consistency – All changes adhere to the database design rules.
- Isolation – Sequential and parallel requests produce the same results.
- Durability – Requests remain even if there is an interruption.
The benefits of NoSQL Document database include:
- NoSQL document databases are easier to write and read than traditional SQL databases.
- Flexibility - NoSQL document databases can accommodate different types of documents because they use a flexible schema.
- Scalability – Most NoSQL document databases are designed with scalability. Users can increase the database without acquiring more powerful hardware.
Top NoSQL Document Databases
OrientDB features a 2nd generation distributed graph database that is unique, multi model graph database that offers flexibility for documents all in one product. It includes replication and sharding that can be used in most complex use cases and with an open source that is compatible with Apache 2 license. OrientDB works fast and capable of storing 220,000 records per second on most common hardware and supports schema less, full and mixed modes including SQL as one of the query language used. OrientDB provides safety in all confidential data that is present with the use of authentication, password and data-at-rest…
MongoDB is the next-generation database that lets its users create applications never before possible. It is designed for CIOs, architects, DBAs and Ops, Developers and Analysts. MongoDB stores data using a flexible document data model that is similar to JSON. Documents contain one or more fields, including arrays, binary data and sub-documents. Fields can vary from document to document. This flexibility allows development teams to evolve the data model rapidly as their application requirements change. When users need to lock down their data model, optional document validation enforces the rules they choose. MongoDB can make users heroes to the business,…
IBM Cloudant is a NoSQL JSON document store that’s optimized for handling heavy workloads of concurrent reads and writes in the cloud; a workload that is typical of large, fast-growing web and mobile apps. Cloudant can be used as a fully-managed DBaaS running on IBM Cloud. Cloudant provides a seamless and cost-effective user experience online and offline, with IBM customers saving up to 95 percent in infrastructure and hosting costs. Available in all IBM Cloud regions and 55+ data centers across the world, Cloudant can easily be set up for disaster recovery between continents or scaling an app for a…
BaseX is a robust, high-performance XML database engine and a highly compliant XQuery 3.1 processor with full support of the W3C Update and Full Text extensions. It serves as excellent framework for building complex data-intensive web applications. BaseX is platform-independent and distributed under a permissive free software license. It comes with interactive user interfaces (desktop, web-based) that give users great insight into data. BaseX can import data in many formats including XML, JSON and CSV. Extraordinarily compact Text, Attribute, Full-Text and Path-Summary indexes accelerate the evaluation process by magnitudes. A fuzzy-match full-text option allows for approximate searches and retrieval. BaseX…
InterSystems Caché is an advanced database management system and rapid application development environment. InterSystems Caché takes the complexity out of application design and deployment. Several high-availability options, including an elegant approach to mirroring, endow applications with robust reliability – but require less hardware than other vendors’ solutions. A flexible, adaptable security model with easy-to-use provisioning capabilities makes it simple to control access to resources. With the overall simplicity of its architecture, and powerful system management tools, Caché requires fewer database administrators (DBAs) than other databases. Within Caché, data can be modeled and stored as tables, objects, or multidimensional arrays (hierarchies).…
Built on the most powerful NoSQL technology, Couchbase Server delivers unparalleled performance at scale, in any cloud. With features like memory-first architecture, geo-distributed deployments, and workload isolation, Couchbase Server excels at supporting mission-critical applications at scale while maintaining submillisecond latencies and 99.999% availability. Couchbase Server has a peer-to-peer topology and all the nodes are equal and communicate to each other on demand. Deliver consistent, fast experiences at scale, powered by memory-first architecture. High-performance indexes and index partitioning provides unparalleled query performance with complex joins, predicates, and aggregate evaluations. And, with end-to-end data compression, Couchbase significantly reduces the cost of network,…
CrateDB is a distributed SQL database built on top of a NoSQL foundation. It combines the familiarity of SQL with the scalability and data flexibility of NoSQL, enabling developers to: Use SQL to process any type of data, structured or unstructured; Perform SQL queries at real time speed, even JOINs and aggregates and scale simply. CrateDB’s distributed SQL query engine features columnar field caches, and a more modern query planner. These give CrateDB the unique ability to perform aggregations, JOINs, sub-selects, and ad-hoc queries at in-memory speed. CrateDB also integrates native, full-text search features, which enable users to store and…
Apache CouchDB is a scalable, fault-tolerant, and schema-free document-oriented database. It's used in large and small organizations for a variety of applications where a traditional SQL database isn't the best solution for the problem at hand. CouchDB is a terrific single-node database that works just like any other database behind an application server of your choice. CouchDB is also a clustered database that allows user to run a single logical database server on any number of servers or VMs. A CouchDB cluster improves on the single-node setup with higher capacity and high-availability without changing any APIs. CouchDB makes use of…
Azure Cosmos DB
eXist-db (or eXist for short) is an open sourec software project for NoSQL databases built on XML technology. It is classified as both a NoSQL document-oriented database system and a native XML database (and it provides support for XML, JSON, HTML and Binary documents). Unlike most relational database management systems (RDBMS) and NoSQL databases, eXist-db provides XQuery and XSLT as its query and application programming languages. Being a complete solution, eXistdb tightly integrates with XForms for complex form development. Develop entire applications in XQuery using eXistdb's rich set of libraries. eXistdb applications are packaged as single archive files that are…
IBM Informix is a secure embeddable database, optimized for OLTP and Internet of Things (IoT) data. Informix has the unique ability to seamlessly integrate SQL, NoSQL/JSON, time series and spatial data. With four available editions, everyone from developers to global enterprises can benefit from its reliability, flexibility, ease of use and low total cost of ownership. The single Informix platform helps you power transactional workloads to enable analytics-driven insights at the speed of business. To support mission-critical environments, IBM Informix includes High Availability Data Replication (HADR), Remote Secondary Standby Database Servers and Shared Disk Secondary Server. The Flexible Grid feature…