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DBMS > PostGIS vs. Realm vs. WakandaDB vs. YDB

System Properties Comparison PostGIS vs. Realm vs. WakandaDB vs. YDB

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Editorial information provided by DB-Engines
NamePostGIS  Xexclude from comparisonRealm  Xexclude from comparisonWakandaDB  Xexclude from comparisonYDB  Xexclude from comparison
DescriptionSpatial extension of PostgreSQLA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataWakandaDB is embedded in a server that provides a REST API and a server-side javascript engine to access dataA distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database modelSpatial DBMSDocument storeObject oriented DBMSDocument store
Relational DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score21.72
Rank#29  Overall
#1  Spatial DBMS
Score7.41
Rank#52  Overall
#8  Document stores
Score0.10
Rank#356  Overall
#16  Object oriented DBMS
Score0.33
Rank#287  Overall
#43  Document stores
#132  Relational DBMS
Websitepostgis.netrealm.iowakanda.github.iogithub.com/­ydb-platform/­ydb
ydb.tech
Technical documentationpostgis.net/­documentationrealm.io/­docswakanda.github.io/­docydb.tech/­en/­docs
DeveloperRealm, acquired by MongoDB in May 2019Wakanda SASYandex
Initial release2005201420122019
Current release3.4.2, February 20242.7.0 (April 29, 2019), April 2019
License infoCommercial or Open SourceOpen Source infoGPL v2.0Open SourceOpen Source infoAGPLv3, extended commercial license availableOpen Source infoApache 2.0; commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC++, JavaScript
Server operating systemsAndroid
Backend: server-less
iOS
Windows
Linux
OS X
Windows
Linux
Data schemeyesyesyesFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or dateyesyesyesyes
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.yesnonono
Secondary indexesyesyesyes
SQL infoSupport of SQLyesnonoSQL-like query language (YQL)
APIs and other access methodsRESTful HTTP APIRESTful HTTP API (DynamoDB compatible)
Supported programming languages.Net
Java infowith Android only
Objective-C
React Native
Swift
JavaScriptGo
Java
JavaScript (Node.js)
PHP
Python
Server-side scripts infoStored proceduresuser defined functionsno inforuns within the applications so server-side scripts are unnecessaryyesno
Triggersyesyes infoChange Listenersyes
Partitioning methods infoMethods for storing different data on different nodesyes infobased on PostgreSQLnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infobased on PostgreSQLnonenoneActive-passive shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infoIn-Memory realmnono
User concepts infoAccess controlyes infobased on PostgreSQLyesyesAccess rights defined for Yandex Cloud users

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More resources
PostGISRealmWakandaDBYDB
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