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DynamoDB vs. IBM DB2

DynamoDB IBM DB2 + Add column
Preference (33% global votes) (58% global votes)
Website aws.​amazon.​com/​DynamoDB/​ www.​ibm.​com/​software/​data/​db2
Database model
Data storage
Embeddable No No
Query language
Data types
Conditional entry updates Yes Yes
Map and reduce No No
Unicode Yes Yes
TTL for entries Yes ?
Compression Yes Yes
Integrity model
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Conditional
Referential integrity Yes Yes
Revision control Yes Yes
Locking model
Secondary Indexes Yes Yes
Composite keys Yes Yes
Full text search No Yes
Geospatial Indexes No Yes
Graph support No Yes
Horizontal scalable Yes Yes
Replication Yes Yes
Replication mode
Sharding Yes Yes
Shared nothing architecture Yes Yes
Value size max. 64 kB 2 EB
System requirements
Operating system
Native driver ?
Memory minimum ? 256 MB
Programming language
Description Key-value Rdbms
Multi-user system Yes Yes
Software distribution
Object-Relational Mapping (ORM) Yes Yes
Release Date 18ᵗʰ January 2012 ?
Documentation level ★★★★☆ ★★★★☆
Distributed Counter Yes ?
Free to use Conditional Conditional
Active Yes Yes
Real time analytics Yes Yes
Community Driven No No
WSDL Yes ?
Web interface Yes Yes
Cloud platform support
Online backup No Yes
Function Based Index Yes Yes
Log Yes Yes
Implementation flexibility (0% global votes) (0% global votes)
Backup functionality Basic Excellent
Ease of use ★★★★☆ ★★★★☆
Free for commercial use Yes Yes
Sorts Yes Yes
Perfomance ★★★★☆ ★★★★★
Materialized Views Yes Yes
Spring Data Support Yes ?
Geospatial Yes Yes
JSON Yes Yes
Geo-distributed Yes ?
Fully Distributed Yes ?
Auto-Sharding Yes ?
24/7 support Yes Yes
Free edition Yes Yes
memcached protocol No ?
Does your mom understand it No ?
Monitoring UI No ?
Lund Yes ?
Accelerometer sensor ? No
Extension/Plug-in ? Conditional
Database ?
Price rating ? ★★★★☆
Standard compliance ? Yes
RESTful ? Yes
Database Connection Pooling ? Yes
Data encryption ? Yes
API ? Good
Partial Index ? Yes
Download ? www-01.​ibm.​com/​software/​data/​db2/​
Level of access authorization ?
Query Cache ? Yes
In-Place Update ? Yes
Read preferences ? Yes
Open Source ? No
Triggers ? Yes
Cloud-enabled ? Yes
Pause Test ? Yes
Predictive Analytics ? Yes
Text Analytics ? Yes
Flexible Table(Schema) ? Yes
Max rows in query result ? 5
Stored Procedure ? Yes
Concurrency ? Yes
SQL Queries ? Yes
Recursive queries ? Yes
Online backup (no locking) ? Yes
CLI` ? Yes
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DynamoDB IBM DB2
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