DBMS > Dgraph vs. Elasticsearch vs. Immudb
System Properties Comparison Dgraph vs. Elasticsearch vs. Immudb
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|Editorial information provided by DB-Engines|
|Name||Dgraph Xexclude from comparison||Elasticsearch Xexclude from comparison||Immudb Xexclude from comparison|
|Description||Distributed and scalable native Graph DBMS||A distributed, RESTful modern search and analytics engine based on Apache Lucene Elasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metric||An open source immutable (append-only) database with cryptographic verification which makes it tamper-resistant and fully auditable.|
|Primary database model||Graph DBMS||Search engine||Key-value store|
|Secondary database models||Document store|
|Developer||Dgraph Labs, Inc.||Elastic||Codenotary|
|Current release||8.6, January 2023||1.2.3, April 2022|
|License Commercial or Open Source||Open Source Apache 2.0||Open Source Elastic License||Open Source Apache Version 2.0|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux|
|All OS with a Java VM||BSD|
|Data scheme||schema-free||schema-free Flexible type definitions. Once a type is defined, it is persistent||schema-free|
|Typing predefined data types such as float or date||yes||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|
|Secondary indexes||yes||yes All search fields are automatically indexed||yes|
|SQL Support of SQL||no||SQL-like query language||SQL-like syntax|
|APIs and other access methods||GraphQL query language|
gRPC (using protocol buffers) API
RESTful HTTP/JSON API
PostgreSQL wire protocol
|Supported programming languages||C#|
Community Contributed Clients
|Server-side scripts Stored procedures||no||yes||no|
|Triggers||no||yes by using the 'percolation' feature||no|
|Partitioning methods Methods for storing different data on different nodes||yes||Sharding||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Synchronous replication via Raft||yes|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||ES-Hadoop Connector||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Eventual Consistency Synchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, all||Immediate Consistency|
|Foreign keys Referential integrity||no||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes||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.||Memcached and Redis integration||no|
|User concepts Access control||no Planned for future releases|
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|DB-Engines blog posts|
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