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DBMS > EJDB vs. Microsoft Azure SQL Database vs. Prometheus vs. Quasardb vs. SAP Advantage Database Server

System Properties Comparison EJDB vs. Microsoft Azure SQL Database vs. Prometheus vs. Quasardb vs. SAP Advantage Database Server

Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonMicrosoft Azure SQL Database infoformerly SQL Azure  Xexclude from comparisonPrometheus  Xexclude from comparisonQuasardb  Xexclude from comparisonSAP Advantage Database Server infoformer name: Sybase ADS  Xexclude from comparison
SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Database as a Service offering with high compatibility to Microsoft SQL ServerOpen-source Time Series DBMS and monitoring systemDistributed, high-performance timeseries databaseLow-cost RDBMS with access to ISAM and FoxPro data structures
Primary database modelDocument storeRelational DBMSTime Series DBMSTime Series DBMSRelational DBMS
Secondary database modelsDocument store
Graph DBMS
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.30
Rank#294  Overall
#44  Document stores
Score78.40
Rank#15  Overall
#10  Relational DBMS
Score7.92
Rank#51  Overall
#2  Time Series DBMS
Score0.19
Rank#327  Overall
#30  Time Series DBMS
Websitegithub.com/­Softmotions/­ejdbazure.microsoft.com/­en-us/­products/­azure-sql/­databaseprometheus.ioquasar.aiwww.sap.com/products/advantage-database-server.html
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mddocs.microsoft.com/­en-us/­azure/­azure-sqlprometheus.io/­docsdoc.quasar.ai/­master
DeveloperSoftmotionsMicrosoftquasardbSybase, SAP
Initial release20122010201520091993
Current releaseV123.14.1, January 2024
License infoCommercial or Open SourceOpen Source infoGPLv2commercialOpen Source infoApache 2.0commercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensescommercial
Cloud-based only infoOnly available as a cloud servicenoyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC++GoC++
Server operating systemsserver-lesshostedLinux
Windows
BSD
Linux
OS X
Windows
Linux
Windows
Data schemeschema-freeyesyesschema-freeyes
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idyesNumeric data onlyyes infointeger and binaryyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.yesno infoImport of XML data possiblenono
Secondary indexesnoyesnoyes infowith tagsyes
SQL infoSupport of SQLnoyesnoSQL-like query languageyes
APIs and other access methodsin-process shared libraryADO.NET
JDBC
ODBC
RESTful HTTP/JSON APIHTTP API.NET Client API
ADO.NET
JDBC
ODBC
OLE DB
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
.Net
C#
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
C++
Go
Haskell
Java
JavaScript (Node.js)
Python
Ruby
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
Delphi
Perl
PHP
Server-side scripts infoStored proceduresnoTransact SQLnonoyes
Triggersnoyesnonoyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingSharding infoconsistent hashingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes, with always 3 replicas availableyes infoby FederationSource-replica replication with selectable replication factorMulti-source replication infoCONFLICT Trigger to resolve replication conflicts
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possibleyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes infoby using LevelDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infoTransient modeno infocaching of (temporary) tables can be configured
User concepts infoAccess controlnofine grained access rights according to SQL-standardnoCryptographically strong user authentication and audit trailfine grained access rights according to SQL-standard

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More resources
EJDBMicrosoft Azure SQL Database infoformerly SQL AzurePrometheusQuasardbSAP Advantage Database Server infoformer name: Sybase ADS
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