DBMS > Apache Drill vs. LevelDB
System Properties Comparison Apache Drill vs. LevelDB
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|Editorial information provided by DB-Engines|
|Name||Apache Drill Xexclude from comparison||LevelDB Xexclude from comparison|
|Description||Schema-free SQL Query Engine for Hadoop, NoSQL and Cloud Storage||Embeddable fast key-value storage library that provides an ordered mapping from string keys to string values|
|Primary database model||Document store|
|Developer||Apache Software Foundation|
|Current release||1.20.3, January 2023||1.23, February 2021|
|License Commercial or Open Source||Open Source Apache Version 2||Open Source BSD|
|Cloud-based only Only available as a cloud service||no||no|
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|Server operating systems||Linux|
|Typing predefined data types such as float or date||yes||no|
|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|
|SQL Support of SQL||SQL SELECT statement is SQL:2003 compliant||no|
|APIs and other access methods||JDBC|
RESTful HTTP API
|Supported programming languages||C++||C++|
Java 3rd party binding
Python 3rd party binding
|Server-side scripts Stored procedures||user defined functions||no|
|Partitioning methods Methods for storing different data on different nodes||Sharding||none|
|Replication methods Methods for redundantly storing data on multiple nodes||none|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes||no|
|Consistency concepts Methods to ensure consistency in a distributed system||none||Immediate Consistency|
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||no|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||Depending on the underlying data source||yes with automatic compression on writes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||Depending on the underlying data source|
|User concepts Access control||Depending on the underlying data source||no|
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