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Spark Core is the foundation of the overall project. It provides distributed task dispatching, scheduling, and basic I/O functionalities, exposed through an application programming interface (for Java, Python, Scala, .NET [16] and R) centered on the RDD abstraction (the Java API is available for other JVM languages, but is also usable for some other non-JVM languages that can connect to the ...
The opencypher Morpheus project [32] implements Cypher for Apache Spark users. Commencing in 2016, this project originally ran alongside three related efforts, in which Morpheus designers also took part: SQL/PGQ, G-CORE and design of Cypher extensions for querying and constructing multiple graphs. [47]
DBOS (Database-Oriented Operating System) is a database-oriented operating system meant to simplify and improve the scalability, security and resilience of large-scale distributed applications.
The SQL specification defines what an "SQL schema" is; however, databases implement it differently. To compound this confusion the functionality can overlap with that of a parent database. An SQL schema is simply a namespace within a database; things within this namespace are addressed using the member operator dot ".". This seems to be a ...
SPARK is a formally defined computer programming language based on the Ada programming language, intended for the development of high integrity software used in systems where predictable and highly reliable operation is essential. It facilitates the development of applications that demand safety, security, or business integrity.
Regular expression, XPath, Ripple, SPARQL, SQL, Java/JVM Gremlin is a graph traversal language and virtual machine developed by Apache TinkerPop of the Apache Software Foundation . Gremlin works for both OLTP -based graph databases as well as OLAP -based graph processors.
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Persistence framework which automates the mapping between SQL databases and objects in Java, .NET, and Ruby on Rails. Infinispan: Distributed in-memory key/value data store with optional schema IText: Dynamic PDF generation and manipulation for web- and other applications (Java, C#). Jackson: High-performance JSON processor for Java.