DBMS > HyperSQL vs. Immudb

System Properties Comparison HyperSQL vs. Immudb

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Editorial information provided by DB-Engines

Name

Description

Multithreaded, transactional RDBMS written in Java

also known as HSQLDB

An open source immutable (append-only) database with cryptographic verification which makes it tamper-resistant and fully auditable.

Primary database model

Relational DBMS

Key-value store

Secondary database models

Relational DBMS

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	2.70
Rank	#92	Overall
	#49	Relational DBMS

Score	0.25
Rank	#292	Overall
	#42	Key-value stores

Website

hsqldb.org

github.com/codenotary/immudb
immudb.io

Technical documentation

hsqldb.org/web/hsqlDocsFrame.html

docs.immudb.io

Developer

Codenotary

Initial release

2001

2020

Current release

2.7.2, June 2023

1.2.3, April 2022

License

Commercial or Open Source

Open Source

based on BSD license

Open Source

Apache Version 2.0

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

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Implementation language

Java

Server operating systems

All OS with a Java VM

Embedded (into Java applications) and Client-Server operating modes

BSD
Linux
macOS
Solaris
Windows
z/OS

Data scheme

yes

schema-free

Typing

predefined data types such as float or date

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.

Secondary indexes

yes

SQL

Support of SQL

yes

SQL-like syntax

APIs and other access methods

HTTP API

JDBC via HTTP
JDBC
ODBC

gRPC protocol
PostgreSQL wire protocol

Supported programming languages

All languages supporting JDBC/ODBC
Java

.Net
Go
Java
JavaScript (Node.js)
Python

Server-side scripts

Stored procedures

Java, SQL

Triggers

yes

Partitioning methods

Methods for storing different data on different nodes

none

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

none

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Foreign keys

Referential integrity

yes

Transaction concepts

Support to ensure data integrity after non-atomic manipulations of data

ACID

Concurrency

Support for concurrent manipulation of data

yes

Durability

Support for making data persistent

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

fine grained access rights according to SQL-standard

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More resources

Recent citations in the news

Java, JDBC and the HSQLDB database tutorial
14 November 2022, theserverside.com

HyperSQL DataBase flaw leaves library vulnerable to RCE
24 October 2022, PortSwigger

provided by Google News

immudb Gains Market Momentum as the Leading Immutable Database for Secure and Tamper-Proof Data Storage
11 March 2025, Business Wire

A Step by Step Guide to immudb — the open source immutable database
18 May 2020, HackerNoon

Immudb: Open-source database, built on a zero trust model
17 December 2021, Help Net Security

Codenotary brings its immutable database to the cloud
21 June 2023, TechCrunch

The Alpha and Omega of software supply chain security
4 February 2022, ZDNet

provided by Google News

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