DBMS > LevelDB vs. PostgreSQL vs. Quasardb vs. Redis vs. Riak KV
Vergleich der Systemeigenschaften LevelDB vs. PostgreSQL vs. Quasardb vs. Redis vs. Riak KV
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| Name | LevelDB Xaus Vergleich ausschliessen | PostgreSQL Xaus Vergleich ausschliessen | Quasardb Xaus Vergleich ausschliessen | Redis Xaus Vergleich ausschliessen | Riak KV Xaus Vergleich ausschliessen | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Kurzbeschreibung | Embeddable fast key-value storage library that provides an ordered mapping from string keys to string values | Weit verbreitetes, allgemein einsetzbares Open Source RDBMS  Entwickelt als objektorientiertes DBMS, im Laufe der Zeit um 'Standards' wie SQL erweitert | Distributed, high-performance timeseries database | Popular in-memory data platform used as a cache, message broker, and database that can be deployed on-premises, across clouds, and hybrid environments Redis legt höchsten Wert auf Performanz. Bei Designentscheidungen wird typischerweise Performanz der Vorzug vor Features oder Speicherbedarf gegeben. | Verteilter, fehlertoleranter Key-Value Store | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primäres Datenbankmodell | Key-Value Store | Relational DBMS mit objektorientierten Erweiterungen, z.B.: benutzerdefinierte Datentypen/Funktionen und Vererbung. Key/Value handling mit hstore Modul. | Time Series DBMS | Key-Value Store Multiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistence | Key-Value Store mit Links zwischen Datensätzen und mit Objekt-Tags zur Bildung von Sekundärindizes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sekundäre Datenbankmodelle | Document Store Graph DBMS with Apache AgeSpatial DBMS Vektor DBMS with pgvector extension | Document Store with RedisJSON Graph DBMS with RedisGraphSpatial DBMS Suchmaschine with RediSearchTime Series DBMS with RedisTimeSeriesVektor DBMS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Website | github.com/google/leveldb | www.postgresql.org | quasar.ai | redis.com redis.io | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Technische Dokumentation | github.com/google/leveldb/blob/main/doc/index.md | www.postgresql.org/docs | doc.quasar.ai/master | docs.redis.com/latest/index.html redis.io/docs | www.tiot.jp/riak-docs/riak/kv/latest | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entwickler | PostgreSQL Global Development Group www.postgresql.org/developer | quasardb | Redis project core team, inspired by Salvatore Sanfilippo Entwicklung von Redis Inc finanziert | OpenSource, formerly Basho Technologies | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Erscheinungsjahr | 2011 | 1989 1989: Postgres, 1996: PostgreSQL | 2009 | 2009 | 2009 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Aktuelle Version | 1.23, Februar 2021 | 16.3, Mai 2024 | 3.14.1, Jänner 2024 | 7.2.5, Mai 2024 | 3.2.0, Dezember 2022 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Lizenz Commercial or Open Source | Open Source BSD | Open Source BSD | kommerziell Free community edition, Non-profit organizations and non-commercial usage are eligible for free licenses | Open Source source-available extensions (modules), commercial licenses for Redis Enterprise | Open Source Apache Version 2, kommerzielle Enterprise Edition | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ausschließlich ein Cloud-Service Nur als Cloud-Service verfügbar | nein | nein | nein | nein | nein | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Aiven for Redis: Fully managed in-memory key-value store for all your caching and speedy lookup needs. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Implementierungssprache | C++ | C | C++ | C | Erlang | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Server Betriebssysteme | Illumos Linux OS X Windows | FreeBSD HP-UX Linux NetBSD OpenBSD OS X Solaris Unix Windows | BSD Linux OS X Windows | BSD Linux OS X Windows portiert und gewartet durch Microsoft Open Technologies, Inc. | Linux OS X | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Datenschema | schemafrei | ja | schemafrei | schemafrei | schemafrei | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Typisierung vordefinierte Datentypen, z.B. float oder date | nein | ja | ja integer and binary | teilweise Supported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexes | nein | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| XML Unterstützung Verarbeitung von Daten in XML Format, beispielsweise Speicherung von XML-Strukturen und/oder Unterstützung von XPath, XQuery, XSLT | nein | ja specific XML-type available, but no XML query functionality. | nein | nein | nein | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sekundärindizes | nein | ja | ja mittels Tags | ja with RediSearch module | eingeschränkt | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SQL Support of SQL | nein | ja Standard mit zahlreichen Erweiterungen | SQL-like query language | with RediSQL module | nein | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| APIs und andere Zugriffskonzepte | ADO.NET JDBC native C library ODBC streaming API for large objects | HTTP API | Proprietäres Protokoll RESP - REdis Serialization Protocol | HTTP API Native Erlang Interface | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Unterstützte Programmiersprachen | C++ Go Java 3rd party bindingJavaScript (Node.js) 3rd party bindingPython 3rd party binding | .Net C C++ Delphi Java JDBCJavaScript (Node.js) Perl PHP Python Tcl | .Net C C# C++ Go Java JavaScript (Node.js) PHP Python R | C C# C++ Clojure Crystal D Dart Elixir Erlang Fancy Go Haskell Haxe Java JavaScript (Node.js) Lisp Lua MatLab Objective-C OCaml Pascal Perl PHP Prolog Pure Data Python R Rebol Ruby Rust Scala Scheme Smalltalk Swift Tcl Visual Basic | C inoffizielle Client Library C# C++ inoffizielle Client LibraryClojure inoffizielle Client LibraryDart inoffizielle Client LibraryErlang Go inoffizielle Client LibraryGroovy inoffizielle Client LibraryHaskell inoffizielle Client LibraryJava JavaScript inoffizielle Client LibraryLisp inoffizielle Client LibraryPerl inoffizielle Client LibraryPHP Python Ruby Scala inoffizielle Client LibrarySmalltalk inoffizielle Client Library | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Server-seitige Scripts Stored Procedures | nein | benutzerdefinierte Funktionen realisiert z.B. mit spezifischer Sprache PL/pgSQL, aber auch andere Sprachen möglich (Perl, Python, Tcl, etc.) | nein | Lua; Redis Functions coming in Redis 7 (slides and Github) | Erlang | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Triggers | nein | ja | nein | publish/subscribe channels provide some trigger functionality; RedisGears | ja Pre-Commit Hooks und Post-Commit Hooks | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Partitionierungsmechanismen Methoden zum Speichern von unterschiedlichen Daten auf unterschiedlichen Knoten | keine | partitioning by range, list and (since PostgreSQL 11) by hash | Sharding consistent hashing | Sharding Automatic hash-based sharding with support for hash-tags for manual sharding | Sharding kein "single point of failure" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Replikationsmechanismen Methoden zum redundanten Speichern von Daten auf mehreren Knoten | keine | Source-Replica Replikation andere Varianten durch Verwendung von 3rd party - tools | Source-Replica Replikation mit wählbarem Replikationsfaktor | Multi-Source Replikation with Redis Enterprise Pack Source-Replica Replikation Chained replication wird unterstützt | frei wählbarer Replikationsfaktor | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| MapReduce Bietet ein API für Map/Reduce Operationen | nein | nein | with Hadoop integration | through RedisGears | ja | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Konsistenzkonzept Methoden zur Sicherstellung der Konsistenz in einem verteilten System | Immediate Consistency | Immediate Consistency | Immediate Consistency | Eventual Consistency Causal consistency can be enabled in Active-Active databases Strong consistency with Redis Raft Strong eventual consistency with Active-Active | Eventual Consistency | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fremdschlüssel referenzielle Integrität | nein | ja | nein | nein | nein es können Links zwischen Datensätzen gespeichert werden | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Transaktionskonzept Unterstützung zur Sicherstellung der Datenintegrität bei nicht-atomaren Datenmanipulationen | nein | ACID | ACID | Atomic execution of command blocks and scripts and optimistic locking | nein | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Concurrency Unterstützung von gleichzeitig ausgeführten Datenmanipulationen | ja | ja | ja | ja Datenzugriffe werden vom Server serialisiert | ja | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Durability Dauerhafte Speicherung der Daten | ja with automatic compression on writes | ja | ja mittels LevelDB | ja konfigurierbare Persistenzmechanismen via snapshots oder logs | ja | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| In-Memory Unterstützung Gibt es Möglichkeiten einige oder alle Strukturen nur im Hauptspeicher zu halten | nein | ja Transient mode | ja | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Berechtigungskonzept Zugriffskontrolle | nein | Benutzer mit feingranularem Berechtigungskonzept entsprechend SQL-Standard | Cryptographically strong user authentication and audit trail | Access Control Lists (ACLs): redis.io/docs/management/security/acl LDAP and Role-Based Access Control (RBAC) for Redis Enterprise Mutual TLS authentication: redis.io/docs/management/security/encryption Password-based authentication | yes, using Riak Security | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| LevelDB | PostgreSQL | Quasardb | Redis | Riak KV | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| DB-Engines Blog Posts | PostgreSQL is the DBMS of the Year 2023 Snowflake is the DBMS of the Year 2022, defending the title from last year Snowflake is the DBMS of the Year 2021 | PostgreSQL is the DBMS of the Year 2018 MySQL, PostgreSQL and Redis are the winners of the March ranking MongoDB is the DBMS of the year, defending the title from last year | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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