The Structured Query Language, used in the MySQL database, has great flexibility for selecting subsets of data from database tables. SQL's SELECT statement shows data from whole tables or any subset ...
Abstract: Difference, intersection, semi join and anti-semi-join may be considered binary subset operators, in that they all return a subset of their left-hand argument. These operators are useful for ...
This course is an introduction to the basic concepts, organization, and implementation models of databases, with an emphasis on the relational model. Among the topics covered are the development of ...