DBMS > EJDB vs. Redis vs. TimesTen

System Properties Comparison EJDB vs. Redis vs. TimesTen

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Editorial information provided by DB-Engines

Name

Description

Embeddable document-store database library with JSON representation of queries (in MongoDB style)

In-memory data structure store, used as database, cache and message broker info

Redis focuses on performance so most of its design decisions prioritize high performance and very low latencies.

In-Memory RDBMS compatible to Oracle

Primary database model

Document store

Key-value store info

Multiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistence

Relational DBMS

Secondary database models

Document store info

with Redis Modules
Graph DBMS info

with Redis Modules
Search engine info

with Redis Modules
Time Series DBMS info

with Redis Modules

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

Score	0.24
Rank	#270	Overall
	#36	Document stores

Score	151.86
Rank	#7	Overall
	#1	Key-value stores

Score	2.44
Rank	#112	Overall
	#54	Relational DBMS

Website

ejdb.org

redis.io

www.oracle.com/database/technologies/related/timesten.html

Technical documentation

github.com/Softmotions/ejdb/blob/master/README.md

redis.io/documentation

docs.oracle.com/database/timesten-18.1

Developer

Softmotions

Salvatore Sanfilippo info

Development sponsored by Redis Labs

Oracle, TimesTen Performance Software, HP info

originally founded in HP Labs it was acquired by Oracle in 2005

Initial release

2012

2009

1998

Current release

6.0.8, September 2020

11 Release 2 (11.2.2.8.0)

License

Commercial or Open Source

Open Source info

GPLv2

Open Source info

BSD 3-Clause, commercial license available

commercial

Cloud-based only info

Only available as a cloud service

DBaaS offerings (sponsored links) info

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

ScaleGrid for Redis: Fully managed hosting for Redis on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.

Implementation language

Server operating systems

server-less

BSD
Linux
OS X
Windows info

ported and maintained by Microsoft Open Technologies, Inc.

AIX
HP-UX
Linux
OS X
Solaris SPARC/x86
Windows

Data scheme

schema-free

yes

Typing

predefined data types such as float or date

yes

string, integer, double, bool, date, object_id

partial

Supported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexes

yes

XML support info

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

with RediSearch module

yes

SQL

Support of SQL

yes

APIs and other access methods

in-process shared library

proprietary protocol info

RESP - REdis Serialization Protocol

JDBC
ODBC
ODP.NET
Oracle Call Interface (OCI)

Supported programming languages

Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby

C
C#
C++
Clojure
Crystal
D
Dart
Elixir
Erlang
Fancy
Go
Haskell
Haxe
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Objective-C
OCaml
Pascal
Perl
PHP
Prolog
Pure Data
Python
R
Rebol
Ruby
Rust
Scala
Scheme
Smalltalk
Swift
Tcl
Visual Basic

C
C++
Java
PL/SQL

Server-side scripts info

Stored procedures

Lua

PL/SQL

Triggers

Partitioning methods info

Methods for storing different data on different nodes

none

Sharding

none

Replication methods info

Methods for redundantly storing data on multiple nodes

none

Multi-source replication info

with Redis Enterprise Pack
Source-replica replication info

Chained replication is supported

Multi-source replication
Source-replica replication

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts info

Methods to ensure consistency in a distributed system

Eventual Consistency
Strong eventual consistency with CRDTs

Immediate Consistency or Eventual Consistency depending on configuration

Foreign keys info

Referential integrity

typically not needed, however similar functionality with collection joins possible

yes

Transaction concepts info

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

Optimistic locking, atomic execution of commands blocks and scripts

ACID

Concurrency info

Support for concurrent manipulation of data

yes

Read/Write Locking

yes

Data access is serialized by the server

yes

Durability info

Support for making data persistent

yes

Configurable mechanisms for persistency via snapshots and/or operations logs

yes

by means of logfiles and checkpoints

In-memory capabilities info

Is there an option to define some or all structures to be held in-memory only.

yes

User concepts info

Access control

Simple password-based access control info

Access control lists and SSL are available in the commercial version

fine grained access rights according to SQL-standard

More information provided by the system vendor

Specific characteristics

The world's first commercial In-Memory Relational Database offering (launched in...
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Competitive advantages

TimesTen offers many advantages over competing products: Mature product with nearly...
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Typical application scenarios

TimesTen can be used in a wide range of application areas. Some examples include:...
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Key customers

Some of our key customers include Ericsson , Telcordia , China Mobile, China Telecom,...
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Market metrics

TimesTen is used by thousands of customers in tens of thousands of deployments worldwide...
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Licensing and pricing models

Standard Oracle licence models ; end user and ISV/OEM licence terms available.
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