DBMS > Amazon DynamoDB vs. Sqrrl vs. ToroDB

System Properties Comparison Amazon DynamoDB vs. Sqrrl vs. ToroDB

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Editorial information provided by DB-Engines

Name

Description

Hosted, scalable database service by Amazon with the data stored in Amazons cloud

Adaptable, secure NoSQL built on Apache Accumulo

A MongoDB-compatible JSON document store, built on top of PostgreSQL

Primary database model

Document store
Key-value store

Document store
Graph DBMS
Key-value store
Wide column store

Document store

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

Score	60.18
Rank	#16	Overall
	#2	Document stores
	#2	Key-value stores

Score	0.48
Rank	#207	Overall
	#29	Document stores
	#16	Graph DBMS
	#35	Key-value stores
	#10	Wide column stores

Score	0.06
Rank	#316	Overall
	#42	Document stores

Website

aws.amazon.com/dynamodb

sqrrl.com

www.torodb.com

Technical documentation

docs.aws.amazon.com/dynamodb

www.torodb.com/stampede/docs

Developer

Amazon

originally Sqrrl Data, Inc.

8Kdata

Initial release

2012

2016

License

Commercial or Open Source

commercial info

free tier for a limited amount of database operations

commercial

Open Source info

AGPL-V3

Cloud-based only info

Only available as a cloud service

yes

DBaaS offerings (sponsored links) info

Database as a Service

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

Implementation language

Java

Server operating systems

hosted

Linux

All OS with a Java 7 VM

Data scheme

schema-free

Typing

predefined data types such as float or date

yes

string, integer, double, boolean, date, object_id

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

SQL

Support of SQL

APIs and other access methods

RESTful HTTP API

Accumulo Shell
Java API
JDBC
ODBC
RESTful HTTP API
Thrift

Supported programming languages

.Net
ColdFusion
Erlang
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby

Actionscript
C info

using GLib
C#
C++
Cocoa
Delphi
Erlang
Go
Haskell
Java
JavaScript
OCaml
Perl
PHP
Python
Ruby
Smalltalk

Server-side scripts info

Stored procedures

Triggers

yes

by integration with AWS Lambda

Partitioning methods info

Methods for storing different data on different nodes

Sharding

making use of Hadoop

Sharding

Replication methods info

Methods for redundantly storing data on multiple nodes

yes

selectable replication factor info

making use of Hadoop

Master-slave replication

MapReduce

Offers an API for user-defined Map/Reduce methods

may be implemented via Amazon Elastic MapReduce (Amazon EMR)

yes

Consistency concepts info

Methods to ensure consistency in a distributed system

Eventual Consistency
Immediate Consistency info

can be specified for read operations

Immediate Consistency info

Document store kept consistent with combination of global timestamping, row-level transactions, and server-side consistency resolution.

Eventual Consistency
Immediate Consistency

Foreign keys info

Referential integrity

Transaction concepts info

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

ACID

ACID across one or more tables within a single AWS account and region

Atomic updates per row, document, or graph entity

Concurrency info

Support for concurrent manipulation of data

yes

Durability info

Support for making data persistent

yes

User concepts info

Access control

Access rights for users and roles can be defined via the AWS Identity and Access Management (IAM)

Cell-level Security, Data-Centric Security, Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC)

Access rights for users and roles

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