SQL databases have constraints on data types and consistency. NoSQL does away with them for the sake of speed, flexibility, and scale.

The introduction of increased transactional capability into non-relational databases makes sense-in the same way that providing SQL layers on top of Hadoop and many other non-relational stores makes ...

SQL databases are limited to a single machine but provide strong transactions, schemas, and querying; NoSQL databases abandon transactions and schemas in order to provide scale and fault tolerance.

Distributed transactions are one of the more powerful and important functions within SQL Server. A distributed transaction is just like any other transaction within the SQL Server database, with a ...

Via a 7.0 upgrade, Couchbase is adding support for multi-statement SQL transactions to reduce database costs.

You can order up a powerful, scalable Oracle database tuned for transaction processing that's ready to use in minutes.

Get ready to scale out SQL Azure databases beyond today's 50GB limit with the Transact-SQL and ADO.NET elastic sharding features, which are coming in the 2011 SQL Azure Federation Community Technology ...