by Mladen Gogala, Peter MacIntyre, Brian Danchilla

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C H A P T E R  7

Database Integration I

In this chapter, we'll primarily be dealing with NoSQL databases. The most popular among NoSQL databases are MongoDB, CouchDB, Google Big Table, and Cassandra, but there are others. NoSQL databases, as the name implies, are not classic SQL databases and do not implement the ACID properties. ACID stands for Atomicity, Consistency, Isolation, and Durability, which are traditional features of RDBMS (Relational Database Management System) transactions.

NoSQL databases do not have a transaction management layer, commits, or the ability to roll transactions back. They are also schema free, which means that they do not conform to the traditional schema-table-column pattern. Instead of tables, they have collections ...

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