Hi Miryala,

In general you should use [email protected] (subscribe here: http://hadoop.apache.org/core/mailing_lists.html) for questions about using Hadoop. Anyway, joins and other SQL operators are implemented by both the Hive and Pig Hadoop sub-projects (linked at the top of http://hadoop.apache.org/) and by the DataJoin library in Hadoop. Hive is the closest thing to a relational database on Hadoop, supporting table schemas, a centralized metadata repository, and a SQL-like query language. Pig is a high-level language for writing Hadoop workflows that includes SQL operators.

Matei

On Jun 8, 2009, at 11:53 PM, miryala vignesh wrote:

Did any one work on any project related to databases (simple things
like join) on   hadoop ?
Can any one tell me where can I find hbase programming tutorials
(expecting something other than official website )?

I am not sure if this is the right place for this message , please
direct me to the apt mailing list or forum if this isn't the place .


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