DBMS > AlaSQL vs. Google Cloud Spanner
System Properties Comparison AlaSQL vs. Google Cloud Spanner
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|Editorial information provided by DB-Engines
|AlaSQL Xexclude from comparison
|Google Cloud Spanner Xexclude from comparison
|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.
|Primary database model
|Andrey Gershun & Mathias R. Wulff
|License Commercial or Open Source
|Open Source MIT-License
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
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|Server operating systems
|Typing predefined data types such as float or date
|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.
|SQL Support of SQL
|Close to SQL99, but no user access control, stored procedures and host language bindings.
|yes Query statements complying to ANSI 2011
|APIs and other access methods
|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
|Server-side scripts Stored procedures
|Partitioning methods Methods for storing different data on different nodes
|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 using Google Cloud Dataflow
|Consistency concepts Methods to ensure consistency in a distributed system
|Foreign keys Referential integrity
|yes by using interleaved tables, this features focuses more on performance improvements than on referential integrity
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|yes only for local storage and DOM-storage
|ACID Strict serializable isolation
|Concurrency Support for concurrent manipulation of data
|Durability Support for making data persistent
|yes by using IndexedDB, SQL.JS or proprietary FileStorage
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.
|User concepts Access control
|Access rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)
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|Google Cloud Spanner
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