DBMS > Badger vs. HarperDB vs. searchxml
System Properties Comparison Badger vs. HarperDB vs. searchxml
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|Editorial information provided by DB-Engines|
|Name||Badger Xexclude from comparison||HarperDB Xexclude from comparison||searchxml Xexclude from comparison|
|Description||An embeddable, persistent, simple and fast Key-Value Store, written purely in Go.||Ultra-low latency distributed database with an intuitive REST API supporting NoSQL and SQL (including joins). Deployment of functions and databases simultaneously with a consolidated node-level architecture.||DBMS for structured and unstructured content wrapped with an application server|
|Primary database model||Key-value store||Document store||Native XML DBMS|
|Developer||DGraph Labs||HarperDB||informationpartners gmbh|
|Current release||3.1, August 2021||1.0|
|License Commercial or Open Source||Open Source Apache 2.0||commercial free community edition available||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||BSD|
|Data scheme||schema-free||dynamic schema||schema-free|
|Typing predefined data types such as float or date||no||yes JSON data types||yes|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||no||no||yes|
|SQL Support of SQL||no||SQL-like data manipulation statements||no|
|APIs and other access methods||JDBC|
RESTful HTTP/JSON API
|RESTful HTTP API|
|Supported programming languages||Go||.Net|
|C++ most other programming languages supported via APIs|
|Server-side scripts Stored procedures||no||Custom Functions since release 3.1||yes on the application server|
|Partitioning methods Methods for storing different data on different nodes||none||A table resides as a whole on one (or more) nodes in a cluster||none|
|Replication methods Methods for redundantly storing data on multiple nodes||none||yes the nodes on which a table resides can be defined||yes sychronisation to multiple collections|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||none||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||Atomic execution of specific operations||multiple readers, single writer|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes, using LMDB||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes||no|
|User concepts Access control||no||Access rights for users and roles||Domain, group and role-based access control at the document level and for application services|
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