Despite the increasing focus on offering more access to more users in organizations, ad hoc querying of big data remains a problem for most, according to Jair Aguirre, lead data scientist at Booz ...

Michael Stonebraker has a history of database breakthroughs. He was a founder of Ingres, Illustra, Cohera and StreamBase Systems. He also served as CTO of Informix and helped develop Postgres. His ...

As I discussed in an earlier column, SQL Server keeps a plan cached for each query it sees (assuming the query requires planning in the first place, of course). That's great for speeding up processing ...

A federated SQL query execution engine created at Facebook, Presto brings interactive querying to all of your data — no matter where it resides Presto! It’s not only an incantation to excite your ...

A non-standard inquiry. An ad hoc query is created to obtain information as the need arises. Contrast with a query that is predefined and routinely processed. See query and ad hoc. THIS DEFINITION IS ...

Cloudera Inc. yesterday announced the release of its interactive, real-time query engine for Apache Hadoop. Called Impala 1.0, the open source project has been in public beta since October 2012. "With ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Dany Lepage discusses the architectural ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...