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DBMS > Amazon DynamoDB vs. Crux

System Properties Comparison Amazon DynamoDB vs. Crux

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Our visitors often compare Amazon DynamoDB and Crux with Datomic, MariaDB and Redis.

Editorial information provided by DB-Engines
NameAmazon DynamoDB  Xexclude from comparisonCrux  Xexclude from comparison
DescriptionHosted, scalable database service by Amazon with the data stored in Amazons cloudCrux is a general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument store
Key-value store
Document store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score75.20
Rank#16  Overall
#2  Document stores
#2  Key-value stores
Score0.12
Rank#312  Overall
#41  Document stores
Websiteaws.amazon.com/­dynamodbgithub.com/­juxt/­crux
opencrux.com
Technical documentationdocs.aws.amazon.com/­dynamodbopencrux.com/­reference/­installation.html
DeveloperAmazonJuxt Ltd.
Initial release20122019
Current release1.12.1, September 2020
License infoCommercial or Open Sourcecommercial infofree tier for a limited amount of database operationsOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud serviceyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageClojure
Server operating systemshostedAll OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeschema-free
Typing infopredefined data types such as float or dateyesyes, extensible-data-notation format
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.no
Secondary indexesyesyes
SQL infoSupport of SQLnolimited SQL, making use of Apache Calcite
APIs and other access methodsRESTful HTTP APIHTTP REST
JDBC
Supported programming languages.Net
ColdFusion
Erlang
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby
Clojure
Java
Server-side scripts infoStored proceduresnono
Triggersyes infoby integration with AWS Lambdano
Partitioning methods infoMethods for storing different data on different nodesShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyesyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infomay be implemented via Amazon Elastic MapReduce (Amazon EMR)no
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be specified for read operations
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoACID across one or more tables within a single AWS account and regionACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
User concepts infoAccess controlAccess rights for users and roles can be defined via the AWS Identity and Access Management (IAM)

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More resources
Amazon DynamoDBCrux
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