August 2025
Intermediate to advanced
476 pages
14h 23m
Italian
book
Guida allo studio per AWS Certified Data Engineer Associate
by Sakti Mishra, Dylan Qu, Anusha Challa
Content preview from Guida allo studio per AWS Certified Data Engineer Associate
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Capitolo 2. Conoscenze preliminari per aspiranti ingegneri dei dati
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Prima di essere introdotto ai servizi AWS, devi avere alcune conoscenze preliminari sui concetti di ingegneria dei dati. Questo capitolo tratta brevemente le conoscenze fondamentali relative ai database, ai data lake, all'ingestione dei dati, all'elaborazione dei dati, al consumo dei dati, al lavoro con i repository di codice e ad AWS Cloud di cui avrai bisogno prima di iniziare a prepararti per la certificazione AWS Certified Data Engineer Associate.
Database e tipi di database
La maggior parte delle applicazioni richiede un'archiviazione persistente dei dati e un modo efficiente per effettuare query. I dati possono essere archiviati in diversi formati a seconda del caso d'uso, ma per la maggior parte dei casi l'archiviazione in database è una delle soluzioni migliori per l'archiviazione persistente (se i dati sono disponibili in formato strutturato o semi-strutturato). Cerchiamo di capire cos'è un database e quali sono i diversi tipi di database che puoi prendere in considerazione durante la progettazione della tua applicazione.
Cos'è un database?
Un database è una raccolta di dati che può aiutare a rappresentare un'entità come una tabella o una vista con un insieme fisso o flessibile di attributi memorizzati elettronicamente per facilitarne l'accesso e la gestione. Offre ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.