Aerospike key-value store (KVS) operations associate keys with a set of named values. On cluster startup, Aerospike configures policy containers—namespaces (RDBMS databases)—which control the retention and reliability requirements for a set of data. Namespaces are divided into sets (RDBMS tables) and records (RDBMS rows). Each record has a unique indexed key, and one or more bins (RDBMS columns) that contain the record values. Aerospike supports numerous data types used for bin values, as arguments, and as UDF return values. Aerospike allows value-based queries using secondary indexes, where string and integer bin values are indexed and searched using equality (string or numeric) or range (numeric) filters. User-Defined Functions (UDFs) extend the functionality and performance capabilities of the Aerospike Database engine. In Aerospike, the aggregations framework allows fast, flexible query operations. Similar to MapReduce systems, aggregation emits results in a highly parallel fashion. Aerospike supports large data types (LDTs) that allow individual record bins to efficiently store large collections of elements. In Aeropike, you can use list data types when dealing with a size-bound list residing in a single bin. List operations allow server manipulation (such as adding or removing an item) without having to read and replace the entire bin value. Aerospike supports Geospatial store, index, and query.

* Data can be modeled as relational-database-style tables, JSON documents or key-value pairs. * Oracle NoSQL Database is a sharded (shared-nothing) system which distributes the data uniformly across the multiple shards in the cluster, based on the hashed value of the primary key. Within each shard, storage nodes are replicated to ensure high availability, rapid failover in the event of a node failure and optimal load balancing of queries. * NoSQL Database provides Java, C, Python and node.js drivers and a REST API to simplify application development. * NoSQL Database is integrated with a wide variety of related Oracle and open source applications in order to simplify and streamline the development and deployment of modern big data applications. * NoSQL Database is dual-licensed and available as an open-source community edition as well as a commercially licensed Enterprise Edition.