DBMS > HarperDB vs. Rockset
System Properties Comparison HarperDB vs. Rockset
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|Editorial information provided by DB-Engines|
|Name||HarperDB Xexclude from comparison||Rockset Xexclude from comparison|
|Description||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.||A scalable, reliable search and analytics service in the cloud, built on RocksDB|
|Primary database model||Document store||Document store|
|Secondary database models||Relational DBMS|
|Current release||3.1, August 2021|
|License Commercial or Open Source||commercial free community edition available||commercial|
|Cloud-based only Only available as a cloud service||no||yes|
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|Server operating systems||Linux|
|Data scheme||dynamic schema||schema-free|
|Typing predefined data types such as float or date||yes JSON data types||dynamic typing|
|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 ingestion from XML files supported|
|Secondary indexes||yes||all fields are automatically indexed|
|SQL Support of SQL||SQL-like data manipulation statements||Read-only SQL queries, including JOINs|
|APIs and other access methods||JDBC|
RESTful HTTP/JSON API
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||Custom Functions since release 3.1||no|
|Partitioning methods Methods for storing different data on different nodes||A table resides as a whole on one (or more) nodes in a cluster||Automatic sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||yes the nodes on which a table resides can be defined||yes|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Eventual Consistency|
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||Atomic execution of specific operations||no|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes, using LMDB||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes|
|User concepts Access control||Access rights for users and roles||Access rights for users and organizations can be defined via Rockset console|
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