DBMS > LevelDB vs. SAP Advantage Database Server vs. ToroDB vs. Transwarp Hippo

System Properties Comparison LevelDB vs. SAP Advantage Database Server vs. ToroDB vs. Transwarp Hippo

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Editorial information provided by DB-Engines
Name	LevelDB  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	ToroDB  Xexclude from comparison	Transwarp Hippo  Xexclude from comparison
		SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.	ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	Embeddable fast key-value storage library that provides an ordered mapping from string keys to string values	Low-cost RDBMS with access to ISAM and FoxPro data structures	A MongoDB-compatible JSON document store, built on top of PostgreSQL	Cloud-native distributed Vector DBMS that supports storage, retrieval, and management of massive vector-based datasets
Primary database model	Key-value store	Relational DBMS	Document store	Vector DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 2.25 Rank #115   Overall #19   Key-value stores			Score 0.05 Rank #386   Overall #14   Vector DBMS
Website	github.com/­google/­leveldb	www.sap.com/products/advantage-database-server.html	github.com/­torodb/­server	www.transwarp.cn/­en/­subproduct/­hippo
Technical documentation	github.com/­google/­leveldb/­blob/­main/­doc/­index.md
Developer	Google	Sybase, SAP	8Kdata
Initial release	2011	1993	2016	2023
Current release	1.23, February 2021			1.0, May 2023
License Commercial or Open Source	Open Source BSD	commercial	Open Source AGPL-V3	commercial
Cloud-based only Only available as a cloud service	no	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	C++		Java	C++
Server operating systems	Illumos Linux OS X Windows	Linux Windows	All OS with a Java 7 VM	Linux macOS
Data scheme	schema-free	yes	schema-free
Typing predefined data types such as float or date	no	yes	yes string, integer, double, boolean, date, object_id	Vector, Numeric and String
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	no	no	no	no
Secondary indexes	no	yes		no
SQL Support of SQL	no	yes		no
APIs and other access methods		.NET Client API ADO.NET JDBC ODBC OLE DB		RESTful HTTP API
Supported programming languages	C++ Go Java 3rd party binding JavaScript (Node.js) 3rd party binding Python 3rd party binding	Delphi Perl PHP		C++ Java Python
Server-side scripts Stored procedures	no	yes		no
Triggers	no	yes	no	no
Partitioning methods Methods for storing different data on different nodes	none	none	Sharding	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	none	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no		no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Immediate Consistency	Eventual Consistency Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	yes	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	ACID	no	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes with automatic compression on writes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		no caching of (temporary) tables can be configured		yes
User concepts Access control	no	fine grained access rights according to SQL-standard	Access rights for users and roles	Role based access control and fine grained access rights
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More resources
	LevelDB	SAP Advantage Database Server former name: Sybase ADS	ToroDB	Transwarp Hippo
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