Technical Reports (CIS)

Document Type

Technical Report

Date of this Version

June 1993

Comments

University of Pennsylvania Department of Computer and Information Science Technical Report No. MS-CIS-93-60.

Abstract

It is known that queries in nested relational calculus are independent of the depth of set nesting in the intermediate data and this remains true in the presence of aggregate functions. We prove that this continues to be true if the calculus is augmented with any internal generic family of functions.

Share

COinS
 

Date Posted: 26 July 2007