What is dinaset?

Answer 1

Correct spelling is DYNASET, not DINASET

From Wikipedia:

A dynaset (short for dynamic set) is a set of data that is dynamically linked back to the database. Instead of having the query result stored in a temporary table, where the data cannot be updated directly by the user, the dynaset allows the user to view and update the data contained in the dynaset. Thus, if a university lecturer queried all students who received a distinction in their assignment and found an error in that student's record, they would only need to update the data in the dynaset, which would automatically update the student's database record without the need for them to send a specific update query after storing the query results in a temporary table. The concept was initially put forth by Dr. E.F. Codd, the inventor of the relational database management system (RDBMS) concept.

Ref: http://en.wikipedia.org/wiki/Dynaset