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UniData,UniVerse System Properties

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Editorial information provided by DB-Engines
DescriptionMultiValue database and application server with SQL mapping layer and meta database capabilities
Database modelMultivalue DBMS
DB-Engines Ranking measures the popularity of database management systems
Trend Chart
Rank#68  Overall
#2  Multivalue DBMS
Technical documentationu2.rocketsoftware.com/­resources/­technical-documentation
DeveloperRocket Software
Initial release1985
License Commercial or Open Sourcecommercial
Cloud-based Only available as a cloud serviceno
Implementation languageC
Server operating systemsAIX
Data schemeschema-free
Typing predefined data types such as float or dateoptional
Secondary indexesyes
SQL Support of (almost full) SQL standard (DML, DDL and DCL statements)yes
APIs and other access methodsJava API JPA
Proprietary protocol
SOAP-based API
Supported programming languages.Net
Basic U2 Basic
Server-side scripts Stored proceduresyes
Triggersyes U2 Basic
Partitioning methods Methods for storing different data on different nodesnone
Replication methods Methods for redundantly storing data on multiple nodesMaster-slave replication
MapReduce Offers an API for user-defined Map/Reduce methodsno
Foreign keys Referential integrityno
Transaction concepts Support to ensure data integrity after non-atomic manipulations of dataACID configurable
Concurrency Support for concurrent manipulation of datayes
Durability Support for making data persistentyes
User concepts Access controlAccess rights according to SQL-standard and operating system based

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