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Trino is an open-source distributed SQL query engine designed to query large data sets distributed over one or more heterogeneous data sources. [1] Trino can query data lakes that contain a variety of file formats such as simple row-oriented CSV and JSON data files to more performant open column-oriented data file formats like ORC or Parquet [2] [3] residing on different storage systems like ...
In relational databases, the information schema (information_schema) is an ANSI-standard set of read-only views that provide information about all of the tables, views, columns, and procedures in a database. [1] It can be used as a source of the information that some databases make available through non-standard commands, such as:
These patterns address various data organization challenges and include "Single Table Design", which consolidates related data while adhering to DynamoDB's 400KB item size limit; "Multiple Table Design", which separates data into distinct tables based on access patterns and data model differences; and Hybrid Design, which blends both approaches ...
AWS Glue is an event-driven, serverless computing platform provided by Amazon as a part of Amazon Web Services. It was introduced in August 2017. It was introduced in August 2017. [ 2 ]
Amazon Relational Database Service (or Amazon RDS) is a distributed relational database service by Amazon Web Services (AWS). [2] It is a web service running "in the cloud" designed to simplify the setup, operation, and scaling of a relational database for use in applications. [3]
It is used as a web service and is part of Amazon Web Services (AWS). It was announced on November 29, 2017. [ 1 ] Amazon Neptune supports popular graph models property graph and W3C 's RDF , and their respective query languages Apache TinkerPop's Gremlin , [ 2 ] openCypher , [ 3 ] and SPARQL , [ 4 ] including other Amazon Web Services products.
A query includes a list of columns to include in the final result, normally immediately following the SELECT keyword. An asterisk ("*") can be used to specify that the query should return all columns of all the queried tables. SELECT is the most complex statement in SQL, with optional keywords and clauses that include:
Amazon DocumentDB is a managed proprietary NoSQL database service that supports document data structures, with some compatibility with MongoDB version 3.6 (released by MongoDB in 2017) and version 4.0 (released by MongoDB in 2018).