Very Large Databases (VLDB). Many vendors are addressing the need for databases that support large amounts
of data, usually in the petabyte range. (A petabyte is more than 1,000 terabytes.) VLDB vendors include Oracle
Exadata, IBM’s Netezza, Greenplum, HP’s Vertica, and Teradata. VLDB are now being overtaken in market
interest by Big Data databases.