How does the TopTen Survey work?
Surveys are run periodically. The data collection period for the 2005 survey began in mid-February and ended on August 15th. The previous survey was conducted in 2003. During the data collection period – typically six months – respondents complete a web-based questionnaire and run a validation script that examines key internal database metrics. To qualify, the databases surveyed must meet a minimum size requirement. For the 2005 survey, the minimum size was 1 TB.