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- the motivation for NoSQL #flashcard - the motivation for NoSQL #flashcard
- By giving up ACID constraints, one can achieve - By giving up ACID constraints, one can achieve
much higher performance and scalability. much higher performance and scalability.
- explain the concepts of NoSQL - explain the concepts of NoSQL #flashcard
- NoSQL databases (aka "not only SQL") are non-tabular databases and store - NoSQL databases (aka "not only SQL") are non-tabular databases and store
data differently than relational tables. NoSQL databases come in a data differently than relational tables. NoSQL databases come in a
variety of types based on their data model. The main types are document, variety of types based on their data model. The main types are document,
key-value, wide-column, and graph. They provide flexible schemas and key-value, wide-column, and graph. They provide flexible schemas and
scale easily with large amounts of data and high user loads. scale easily with large amounts of data and high user loads.
- explain the application areas of NoSQL - explain the application areas of NoSQL #flashcard
- NoSQL is an alternative, non-traditional DB technology to be - NoSQL is an alternative, non-traditional DB technology to be
used in large scale environments where (ACID) transactions are not a priority. used in large scale environments where (ACID) transactions are not a priority.
- CAP theorem: - CAP theorem: #flashcard
- There are 3 main properties for distributed management: - There are 3 main properties for distributed management:
1. Consistency → A data item has the same value at the same time (to 1. Consistency → A data item has the same value at the same time (to
ensure coherency). ensure coherency).