DBMS > IBM Db2 warehouse vs. Snowflake
System Properties Comparison IBM Db2 warehouse vs. Snowflake
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|Editorial information provided by DB-Engines|
|Name||IBM Db2 warehouse formerly named IBM dashDB Xexclude from comparison||Snowflake Xexclude from comparison|
|Description||Cloud-based data warehousing service||Cloud-based data warehousing service for structured and semi-structured data|
|Primary database model||Relational DBMS||Relational DBMS|
|Developer||IBM||Snowflake Computing Inc.|
|License Commercial or Open Source||commercial||commercial|
|Cloud-based only Only available as a cloud service||yes||yes|
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|Server operating systems||hosted||hosted|
|Data scheme||yes||yes support of semi-structured data formats (JSON, XML, Avro)|
|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 Import/export of XML data possible||yes|
|SQL Support of SQL||yes||yes|
|APIs and other access methods||.NET Client API|
|Supported programming languages||Java|
|Server-side scripts Stored procedures||PL/SQL, SQL PL||user defined functions|
|Triggers||yes||no similar concept for controling cloud resources|
|Partitioning methods Methods for storing different data on different nodes||Sharding||yes|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||yes|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no|
|User concepts Access control||fine grained access rights according to SQL-standard||Users with fine-grained authorization concept, user roles and pluggable authentication|
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|IBM Db2 warehouse formerly named IBM dashDB||Snowflake|
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