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LevelDB vs. kdb+

LevelDB kdb+ + Add column
Category
Preference (42% global votes) (67% global votes)
Website www.​oracle.​com/​database/​b…b/​index.​html kx.​com
License
Design
Database model
Data storage
Embeddable Yes Yes
Features
Query language
Conditional entry updates Yes Yes
Map and reduce No Yes
Unicode Yes Yes
TTL for entries No Conditional
Compression Yes Yes
Integrity
Integrity model ?
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity No Yes
Revision control ? Yes
Locking model ?
Indexing
Secondary Indexes Yes Yes
Composite keys Yes Yes
Full text search Yes Yes
Geospatial Indexes No Yes
Graph support No ?
Distribution
Horizontal scalable Yes Yes
Replication Yes Yes
Replication mode
Sharding No Yes
Shared nothing architecture ? Yes
Restrictions
Value size max. 4 GB 10 TB
System requirements
Operating system
Native driver
Memory minimum ? 100 kB
Architecture
Programming language
More
Description key/value database In memory, high performance columnar
Brand
Multi-user system Yes Yes
Documentation level ★★★★☆ ★★★★☆
Lines of code 1 748 k ?
Distributed Counter Yes Yes
Free to use Yes Conditional
Active Yes Yes
Creation Date 1994 1993
Community Driven Good Good
Log Yes Yes
Download www.​oracle.​com/​technetwor…iteId=ocomen https:/​/​kx.​com/​software-download.​php
Free for commercial use No Yes
Sorts Yes Yes
Corruption Resistant No ?
Extension/Plug-in ? Yes
Database ?
Price rating ? ★★★★★
Standard compliance ? Yes
Software distribution ?
Object-Relational Mapping (ORM) ? Yes
Release Date ? 1993
RESTful ? Yes
Database Connection Pooling ? Yes
Real time analytics ? Yes
Web interface ? Yes
Widgets Dashboard ? Good
API ? Good
Color ?
Cloud platform support ?
Online backup ? Yes
Function Based Index ? Yes
Geographic Replication ? Yes
Implementation flexibility (0% global votes) (100% global votes)
Level of access authorization ?
Backup functionality ? Good
Query Cache ? Yes
Ease of use ? ★★★★☆
In-Place Update ? Yes
Capped Collections ? Yes
Tuneable write concerns ? Yes
Read preferences ? Yes
Event Driven Architecture ? Yes
Open Source ? No
Op/s ? 100 000
XInclude Support ? No
XQuery Support ? No
Maven support ? Yes
Global Assembly Cache ? Yes
Triggers ? Yes
Perfomance ? ★★★★★
Cloud-enabled ? Yes
Licenses model ?
Pipeline Aggregation ? Yes
Spring Data Support ? Yes
Predictive Analytics ? Yes
Geospatial ? Yes
Text Analytics ? Yes
Server Side Java Script ? Yes
JSON ? Yes
Flexible Table(Schema) ? No
Geo-distributed ? Yes
Batch Loading ? Yes
Administrator responsive? ? Yes
Re-Reduce ? Yes
Clustering over WAN ? Yes
Fully Distributed ? Yes
Stored Procedure ? Yes
Second Level Caching ? Yes
Concurrency ? Yes
Auto-Sharding ? Yes
Native Adsense Integration ? No
Delta read ? Yes
Delta Update ? Yes
Aggregators ? Yes
Near cache ? Yes
Continuous query ? Yes
HTTP Session replication ? Yes
LDAP Integration ? Yes
In business since ? 1993
Number of systems in production ? 80 000
24/7 support ? Yes
Free edition ? Yes
Distributed code Deployment ? Yes
Dynamic code deployment ? Yes
DB Delta Server ? Yes
Rolling Upgrade ? Yes
Dynamic index ? Yes
Data Grid interceptors ? Yes
Replication interceptors ? Yes
Kafka Integration ? No
Drools Integration ? No
Storm Integration ? No
Offheap Memory ? Yes
In-Memory File System ? Yes
CEP Streaming ? Yes
SQL Queries ? Yes
memcached protocol ? Yes
Does your mom understand it ? No
Monitoring UI ? Yes
CLI` ? Yes
Web Page Caching ? Yes
Web Page Fragment Caching ? Yes
Abstracts complexity of UI Components ? Yes
Hadoop Integration ? Yes
Apache Spark Integration ? Yes
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LevelDB kdb+
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