Keyword/selection# QUERYc7a45e02e9bb948890b6e0dd9265c562
Keyword/selection# QUERY6c7eb0c8c5c97164d80cca7b16d9e4cc
Keyword/selection# ae3bcafc71cd6026f8fcdbe393d261d9
Slide/Reldata Relational Algebra Basic Operations 1