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LevelDB vs. LevelDB

LevelDB LevelDB + Add column
Category
Preference 52% votes 48% votes
Website www.​oracle.​com/​database/​b…b/​index.​html leveldb.​org
License
Design
Database model
Data storage
Embeddable Yes Yes
Features
Query language
Data types ?
Conditional entry updates Yes Yes
Map and reduce No No
Unicode Yes Yes
TTL for entries No No
Compression Yes Yes
Integrity
Integrity model ?
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes No
Durability (data storage) Yes Yes
Transactions Yes No
Referential integrity No No
Revision control ? No
Indexing
Secondary Indexes Yes No
Composite keys Yes No
Full text search Yes No
Geospatial Indexes No No
Graph support No No
Distribution
Horizontal scalable Yes No
Replication Yes No
Replication mode ?
Sharding No No
Restrictions
Value size max. 4 GB ?
System requirements
Operating system
Native driver
Memory minimum ? 0 B
Architecture
Programming language
More
Description key/value database Key/Value database
Brand
Multi-user system Yes No
Documentation level ★★★★☆ ★★☆☆☆
Lines of code 1 748 k 15.5 k
Distributed Counter Yes ?
Free to use Yes Yes
Active Yes Yes
Creation Date 1994 2011
Community Driven Good Good
Log Yes Yes
Download www.​oracle.​com/​technetwor…iteId=ocomen https:/​/​code.​google.​com/​p…wnloads/​list
Free for commercial use No Yes
Sorts Yes Yes
Corruption Resistant No No
Database ?
Price rating ? ★★★★★
Software distribution ?
Database Connection Pooling ? No
Real time analytics ? No
Web interface ? No
Online backup ? No
Partial Index ? No
Function Based Index ? No
Implementation flexibility (0% global votes) (40% global votes)
Backup functionality ? No
Query Cache ? Yes
Ease of use ? ★★★★☆
In-Place Update ? Yes
Open Source ? Yes
Maximum size ? 1 000 000 000 EB
Perfomance ? ★★★★☆
JSON ? Yes
Ajax ? Yes
Batch Loading ? Yes
Free edition ? Yes
Does your mom understand it ? No
+ Add row ++
LevelDB LevelDB
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