DBMS > HarperDB vs. MySQL vs. OpenEdge
System Properties Comparison HarperDB vs. MySQL vs. OpenEdge
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|Editorial information provided by DB-Engines
|HarperDB Xexclude from comparison
|MySQL Xexclude from comparison
|OpenEdge Xexclude from comparison
|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.
|Widely used open source RDBMS
|Application development environment with integrated database management system
|Primary database model
|Relational DBMS Key/Value like access via memcached API
|Secondary database models
|Oracle since 2010, originally MySQL AB, then Sun
|Progress Software Corporation
|3.1, August 2021
|8.3.0, January 2024
|OpenEdge 12.2, March 2020
|License Commercial or Open Source
|commercial free community edition available
|Open Source GPL version 2. Commercial licenses with extended functionallity are available
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
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|C and C++
|Server operating systems
|Typing predefined data types such as float or date
|yes JSON data types
|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.
|SQL Support of SQL
|SQL-like data manipulation statements
|yes with proprietary extensions
|yes close to SQL 92
|APIs and other access methods
RESTful HTTP/JSON API
Proprietary native API
|Supported programming languages
|Progress proprietary ABL (Advanced Business Language)
|Server-side scripts Stored procedures
|Custom Functions since release 3.1
|yes proprietary syntax
|Partitioning methods Methods for storing different data on different nodes
|A table resides as a whole on one (or more) nodes in a cluster
|horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric
|horizontal partitioning since Version 11.4
|Replication methods Methods for redundantly storing data on multiple nodes
|yes the nodes on which a table resides can be defined
|MapReduce Offers an API for user-defined Map/Reduce methods
|Consistency concepts Methods to ensure consistency in a distributed system
|Foreign keys Referential integrity
|yes not for MyISAM storage engine
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|Atomic execution of specific operations
|ACID not for MyISAM storage engine
|Concurrency Support for concurrent manipulation of data
|yes table locks or row locks depending on storage engine
|Durability Support for making data persistent
|yes, using LMDB
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.
|User concepts Access control
|Access rights for users and roles
|Users with fine-grained authorization concept no user groups or roles
|Users and groups
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|DB-Engines blog posts
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