Data Entry Form

[zami]

I have Dabase, and i want to add some new fileds in database, for example i have schoolid, school name, address etc, now i want to add some more fields such as classenrollment1, classenrollment2... and date1 and date2, i want when i give school id its sh ows all stored data and th en use input new data on it, no duplication in school id.
reply me please.
thanks