April 2025
Intermediate to advanced
504 pages
15h
Portuguese (Portugal, Brazil)
Content preview from Análise prática de séries temporais
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Capítulo 5. Armazenamento de dados temporais
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Muitas vezes, o valor dos dados de séries cronológicas reside nos seus cenários retrospectivos, e não na transmissão em direto. Por este motivo, o armazenamento de dados de séries temporais é necessário para a maioria das análises de séries temporais.
Uma boa solução de armazenamento é aquela que permite o acesso fácil e a fiabilidade dos dados sem exigir um grande investimento em recursos de computação. Neste capítulo, discutiremos os aspectos de um conjunto de dados que devem ser considerados na conceção do armazenamento de dados de séries cronológicas. Discutiremos também as vantagens das bases de dados SQL, das bases de dados NoSQL e de uma variedade de formatos de ficheiros simples.
A conceção de uma solução geral de armazenamento de séries cronológicas é um desafio porque existem muitos tipos diferentes de dados de séries cronológicas, cada um com diferentes padrões de armazenamento, leitura/escrita e análise. Alguns dados serão armazenados e examinados repetidamente, enquanto outros dados são úteis apenas durante um curto período de tempo, após o qual podem ser completamente eliminados.
Seguem-se alguns casos de utilização para o armazenamento de séries cronológicas que têm diferentes padrões de leitura, escrita e consulta:
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Estás a recolher métricas de desempenho num sistema de produção. Precisas de armazenar ...
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