Results 71 to 80 of about 284,169 (264)

Effect of semantic distance on learning structured query language: An empirical study

open access: yesFrontiers in Psychology, 2022
Students of database courses usually encounter difficulties in learning structured query language (SQL). Numerous studies have been conducted to improve how students learn SQL. However, learning SQL remains difficult. This study analyzed the difficulties
Shin-Shing Shin
doaj   +1 more source

RAT-SQL: Relation-Aware Schema Encoding and Linking for Text-to-SQL Parsers [PDF]

open access: yesAnnual Meeting of the Association for Computational Linguistics, 2019
When translating natural language questions into SQL queries to answer questions from a database, contemporary semantic parsing models struggle to generalize to unseen database schemas.
Bailin Wang   +4 more
semanticscholar   +1 more source

Data Management: 25 Years of Forecasts

open access: yesТруды Института системного программирования РАН, 2018
In October 2013, the eighth meeting of researchers in the field of databases was held. The first such meeting took place in February 1988, so that 25 years passed between them.
S. D. Kuznetsov
doaj   +1 more source

Improving Text-to-SQL with a Hybrid Decoding Method

open access: yesEntropy, 2023
Text-to-SQL is a task that converts natural language questions into SQL queries. Recent text-to-SQL models employ two decoding methods: sketch-based and generation-based, but each has its own shortcomings.
Geunyeong Jeong   +6 more
doaj   +1 more source

Queries with Guarded Negation (full version) [PDF]

open access: yes, 2012
A well-established and fundamental insight in database theory is that negation (also known as complementation) tends to make queries difficult to process and difficult to reason about.
Barany, Vince   +2 more
core  

A MULTITHREADED SQL SERVICE [PDF]

open access: yesParallel Processing Letters, 2006
In this paper, we describe in detail a novel SQL service based on radix tree data structures and we show how to multithread the service in order to execute it on distributed platforms. The SQL service is currently developed in the context of SMP platforms but should be deployed in the future on grid platforms.
Cérin, Christophe   +2 more
openaire   +7 more sources

The Digital Edition of the Becerro Galicano de San Millán de la Cogolla

open access: yesRIDE, 2014
This is a review of the digital edition of the Becerro Galicano of San Millán de la Cogolla, one of the oldest medieval cartularies in Spain and one of the most important sources for the study of Christian Spain between the 8th and 12th century.
Francisco Javier Álvarez Carbajal
doaj   +1 more source

Relation-Aware Graph Transformer for SQL-to-Text Generation

open access: yesApplied Sciences, 2021
Generating natural language descriptions for structured representation (e.g., a graph) is an important yet challenging task. In this work, we focus on SQL-to-text, a task that maps a SQL query into the corresponding natural language question.
Da Ma   +5 more
doaj   +1 more source

CHOOSING THE APPROPRIATE DATABASE TYPE: A COMPARISON OF SQL, NOSQL, AND NEWSQL [PDF]

open access: yesAnalele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie
Databases are data collections organized for easy access and management, available simultaneously to multiusers. Access to the data can be controlled through various permissions, ensuring that users have the appropriate level of access based on their
BABUCEA ANA-GABRIELA
doaj  

Web applications and data: achieving abstraction and scalability

open access: yesТруды Института системного программирования РАН, 2018
Nowadays it has become clear that no data store is all-purpose. SQL-based systems have been prevalent for several decades though this approach leads to serious issues in modern high scalability architectures.
Andrey Poskonin
doaj   +1 more source

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