DBMS > Dragonfly vs. Google Cloud Datastore vs. SAP Advantage Database Server
System Properties Comparison Dragonfly vs. Google Cloud Datastore vs. SAP Advantage Database Server
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|Editorial information provided by DB-Engines|
|Name||Dragonfly Xexclude from comparison||Google Cloud Datastore Xexclude from comparison||SAP Advantage Database Server former name: Sybase ADS Xexclude from comparison|
|SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.|
|Description||A drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instance||Automatically scaling NoSQL Database as a Service (DBaaS) on the Google Cloud Platform||Low-cost RDBMS with access to ISAM and FoxPro data structures|
|Primary database model||Key-value store||Document store||Relational DBMS|
|Developer||DragonflyDB team and community contributors||Sybase, SAP|
|Current release||1.0, March 2023|
|License Commercial or Open Source||Open Source BSL 1.1||commercial||commercial|
|Cloud-based only Only available as a cloud service||no||yes||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux||hosted||Linux|
|Typing predefined data types such as float or date||strings, hashes, lists, sets, sorted sets, bit arrays||yes, details here||yes|
|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|
|SQL Support of SQL||no||SQL-like query language (GQL)||yes|
|APIs and other access methods||Proprietary protocol RESP - REdis Serialization Protocol||gRPC (using protocol buffers) API|
RESTful HTTP/JSON API
|.NET Client API|
|Supported programming languages||C|
|Server-side scripts Stored procedures||Lua||using Google App Engine||yes|
|Triggers||publish/subscribe channels provide some trigger functionality||Callbacks using the Google Apps Engine||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication||Multi-source replication using Paxos||Multi-source replication CONFLICT Trigger to resolve replication conflicts|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes using Google Cloud Dataflow||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency||Immediate Consistency or Eventual Consistency depending on type of query and configuration Strong Consistency is default for entity lookups and queries within an Entity Group (but can instead be made eventually consistent). Other queries are always eventual consistent.||Immediate Consistency|
|Foreign keys Referential integrity||no||yes via ReferenceProperties or Ancestor paths||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||Atomic execution of command blocks and scripts||ACID Serializable Isolation within Transactions, Read Committed outside of Transactions||ACID|
|Concurrency Support for concurrent manipulation of data||yes, strict serializability by the server||yes||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no||no caching of (temporary) tables can be configured|
|User concepts Access control||Password-based authentication||Access rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)||fine grained access rights according to SQL-standard|
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|Dragonfly||Google Cloud Datastore||SAP Advantage Database Server former name: Sybase ADS|
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