Next: The HERSCHEL/PACS Common Software System as Data Reduction System . ... Some long queries are returning data to a user over an Internet connection; frequently time is spent transferring the data, not extracting it, but a database resource is still tied up. ... We create a SQL Server database for the user dynamically the first time MYDB is used in a query. ... Since this is a normal database the user may perform joins and queries on tables in MYDB as with tables in any other database. ...