January 2018
Beginner to intermediate
412 pages
9h 33m
English
Content preview from Practical Big Data Analytics
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ACID and SQL
ACID stands for atomicity, consistency, isolation, and durability:
- Atomicity: This indicates that database transactions either execute in full or do not execute at all. In other words, either all transactions should be committed, that is, persisted in their entirety, or not committed at all. There is no scope for a partial execution of a transaction.
- Consistency: The constraints on the data, that is, the rules that determine data management within a database, will be consistent throughout the database. Different instances will not abide by rules that are any different to those in other instances of the database.
- Isolation: This property defines the rules of how concurrent operations (transactions) will read and write data. For ...
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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.