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Apache Accumulo vs. eXist-db

Apache Accumulo eXist-db + Add column
Preference (43% global votes) (55% global votes)
Website accumulo.​apache.​org exist-db.​org
Database model
Data storage
Embeddable No Yes
Query language
Data types
Conditional entry updates Yes Yes
Map and reduce Yes No
Unicode Yes Yes
TTL for entries Yes ?
Compression Yes Yes
Integrity model
Atomicity Conditional Yes
Consistency Yes Yes
Isolation Yes ?
Durability (data storage) Yes Yes
Transactions No Conditional
Referential integrity No No
Revision control Yes ?
Locking model
Secondary Indexes Yes Yes
Composite keys Yes ?
Full text search No Yes
Geospatial Indexes No Yes
Graph support Yes Yes
Graph type ?
Horizontal scalable Yes No
Replication Yes Yes
Replication mode
Sharding Yes No
Shared nothing architecture Yes No
Value size max. 1 EB ?
System requirements
Operating system
Native driver
Memory minimum 8 GB ?
Programming language
Description A distributed database featuring cell level security and server-side computation XML Database
Brand ?
Multi-user system Yes Yes
Extension/Plug-in Yes Yes
Database ?
Multilingual content Yes Yes
Price rating ★★★★★ ★★★★★
Multiple projects Yes Yes
Standard compliance Yes Yes
Software distribution
Release Date September 2011 2000
Documentation level ★★★☆☆ ★★★★☆
RESTful No Yes
Distributed Counter Yes ?
Free to use Yes Yes
Active Yes Yes
Database Connection Pooling Yes ?
Real time analytics Yes Yes
Community Driven Basic Yes
API Basic Good
Log Yes Yes
Implementation flexibility (50% global votes) (50% global votes)
Download accumulo.​apache.​org/​downloads/​ https:/​/​bintray.​com/​exist…leases/​exist
Level of access authorization ?
Query Cache Yes Yes
Ease of use ★★★☆☆ ★★★★☆
Free for commercial use Yes Yes
Sorts Yes Yes
Open Source Yes Yes
Perfomance ★★★★☆ ★★★★☆
Server Side Java Script No ?
JSON Yes Yes
Flexible Table(Schema) No ?
Fully Distributed Yes ?
Stored Procedure No ?
Concurrency Yes ?
Auto-Sharding Yes ?
Free edition Yes Yes
Kafka Integration Yes ?
SQL Queries No ?
420 Friendly? Yes ?
Recursive queries No Yes
CLI` Yes ?
Hadoop Integration Yes ?
WYSIWYG-Editor ? Yes
Template language ?
Target audience ?
Object-Relational Mapping (ORM) ? No
Dynamic typing ? No
Programming paradigm ?
Comments ? Yes
Web interface ? Yes
Versioning ? Good
XML Aware ? Good
Color ?
Backup functionality ? Good
Community feedback ? ★★★★☆
In-Place Update ? Yes
Easy of Use ? Yes
XInclude Support ? Yes
XUpdate Support ? Yes
XQuery Support ? Yes
Triggers ? Yes
Cloud-enabled ? Yes
Geospatial ? Yes
? Yes
Monitoring UI ? Yes
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Apache Accumulo eXist-db
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