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simpleDb vs. LMDB

simpleDb LMDB + Add column
Category
Preference (36% global votes) (55% global votes)
Website aws.​amazon.​com/​simpledb/​ symas.​com/​mdb
License
Design
Database model
Data storage
Embeddable No Yes
Features
Query language
Data types ?
Conditional entry updates Yes No
Map and reduce Yes No
Unicode Yes No
TTL for entries ? No
Compression ? No
Integrity
Integrity model ?
Atomicity ? Yes
Consistency ? Yes
Isolation ? Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity No No
Revision control No No
Locking model ?
Indexing
Secondary Indexes ? No
Composite keys ? No
Full text search ? No
Geospatial Indexes ? No
Graph support ? No
Distribution
Horizontal scalable Yes No
Replication Yes No
Replication mode ?
Sharding Yes No
Shared nothing architecture Yes ?
Restrictions
Value size max. 1.02 MB 4 GB
System requirements
Operating system
Native driver
Memory minimum ? 64 kB
Architecture
Programming language
More
Description Hosted Cloud Database Memory-Mapped, Copy-on-Write
Op/s 25 ?
Brand ?
Multi-user system ? Yes
Database ?
Price rating ? ★★★★★
Software distribution ?
Release Date ? September 2011
Documentation level ? ★★★★★
Lines of code ? 7 k
Free to use ? Yes
Active ? Yes
Real time analytics ? Yes
Creation Date ? 2009
Community Driven ? Good
API ? Basic
Online backup ? Yes
Function Based Index ? No
Implementation flexibility (0% global votes) (50% global votes)
Download ? gitorious.​org/​mdb
Backup functionality ? Good
Query Cache ? No
Ease of use ? ★★★★☆
In-Place Update ? Yes
Free for commercial use ? Yes
Sorts ? Yes
Read preferences ? No
Open Source ? Yes
Maximum size ? 9.2 EB
Perfomance ? ★★★★★
JSON ? Yes
Batch Loading ? Yes
Corruption Resistant ? Yes
+ Add row ++
simpleDb LMDB
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