DBMS > EXASOL vs. Google Cloud Spanner vs. TempoIQ
System Properties Comparison EXASOL vs. Google Cloud Spanner vs. TempoIQ
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|Editorial information provided by DB-Engines|
|Name||EXASOL Xexclude from comparison||Google Cloud Spanner Xexclude from comparison||TempoIQ formerly TempoDB Xexclude from comparison|
|TempoIQ seems to be decommissioned. It will be removed from the DB-Engines ranking.|
|Description||High-performance, in-memory, MPP database specifically designed for in-memory analytics.||A horizontally scalable, globally consistent, relational database service. It is the externalization of the core Google database that runs the biggest aspects of Google, like Ads and Google Play.||Scalable analytics DBMS for sensor data, provided as a service (SaaS)|
|Primary database model||Relational DBMS||Relational DBMS||Time Series DBMS|
|License Commercial or Open Source||commercial||commercial||commercial|
|Cloud-based only Only available as a cloud service||no||yes||yes|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||hosted|
|Typing predefined data types such as float or date||yes||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|
|SQL Support of SQL||yes||yes Query statements complying to ANSI 2011||no|
|APIs and other access methods||.Net|
|gRPC (using protocol buffers) API|
JDBC At present, JDBC supports read-only queries. No support for DDL or DML statements.
RESTful HTTP API
|Supported programming languages||Java|
|Server-side scripts Stored procedures||user defined functions||no||no|
|Triggers||yes||no||yes Realtime Alerts|
|Partitioning methods Methods for storing different data on different nodes||Sharding||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication with 3 replicas for regional instances.|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes Hadoop integration||yes using Google Cloud Dataflow||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes by using interleaved tables, this features focuses more on performance improvements than on referential integrity||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID Strict serializable isolation||no|
|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.||yes||no||no|
|User concepts Access control||Access rights for users, groups and roles according to SQL-standard||Access rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)||simple authentication-based access control|
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|EXASOL||Google Cloud Spanner||TempoIQ formerly TempoDB|
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