DBMS > Amazon DynamoDB vs. Microsoft SQL Server vs. Percona Server for MySQL
System Properties Comparison Amazon DynamoDB vs. Microsoft SQL Server vs. Percona Server for MySQL
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|Editorial information provided by DB-Engines|
|Name||Amazon DynamoDB Xexclude from comparison||Microsoft SQL Server Xexclude from comparison||Percona Server for MySQL Xexclude from comparison|
|Description||Hosted, scalable database service by Amazon with the data stored in Amazons cloud||Microsofts flagship relational DBMS||Enhanced drop-in replacement for MySQL based on XtraDB or TokuDB storage engines with improved performance and additional diagnostic and management features.|
|Primary database model||Document store|
|Relational DBMS||Relational DBMS|
|Secondary database models||Document store|
|Current release||SQL Server 2022, November 2022||8.0.28-20, 2022|
|License Commercial or Open Source||commercial free tier for a limited amount of database operations||commercial restricted free version is available||Open Source GPL version 2|
|Cloud-based only Only available as a cloud service||yes||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||C++||C and C++|
|Server operating systems||hosted||Linux|
|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.||yes||yes|
|SQL Support of SQL||no||yes||yes|
|APIs and other access methods||RESTful HTTP API||ADO.NET|
Tabular Data Stream (TDS)
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||no||Transact SQL, .NET languages, R, Python and (with SQL Server 2019) Java||yes|
|Triggers||yes by integration with AWS Lambda||yes||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding||tables can be distributed across several files (horizontal partitioning); sharding through federation|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||yes, but depending on the SQL-Server Edition||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no may be implemented via Amazon Elastic MapReduce (Amazon EMR)||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
Immediate Consistency can be specified for read operations
|Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID ACID across one or more tables within a single AWS account and region||ACID||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.||yes||yes|
|User concepts Access control||Access rights for users and roles can be defined via the AWS Identity and Access Management (IAM)||fine grained access rights according to SQL-standard||Users with fine-grained authorization concept no user groups or roles|
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|Amazon DynamoDB||Microsoft SQL Server||Percona Server for MySQL|
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