Gustav Brock
Gustav at cactus.dk
Tue Oct 31 11:09:51 CST 2006
Hi William That would require an engine capable of bit-mapped indexing and searching. At least one can do this, InterSystems Caché: http://www.intersystems.com/cache/ http://www.intersystems.com/cache/technology/components/bitmap/index.html /gustav >>> wdhindman at dejpolsystems.com 31-10-2006 15:47:51 >>> ...given four tables tblContact pk ContactID fk CompanyId tblCompany pk CompanyID tbEvent pk EventID tblEventReg pkERID fk EventID fk CompanyD fk ContactID ...tblEventRegistration is a join table to show which contacts from which companies attended which events. ...given that thousands of contacts attend each event, tblEventReg is growing logarithmically Q: is it feasible to use a numeric field in the tblContacts to replace tblEventReg by using event checkboxes instead, assigning them a numeric value by show and then mathematically summing them in the numeric field ...thus using one integer to represent every event attended by that contact? ...yes/no? ...pros/cons? William Hindman