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Download full textMcMaster, Kirby; Sambasivam, Samuel; Hadfield, Steven; Wolthuis, Stuart – Information Systems Education Journal, 2013
In this paper, we describe how database instructors can teach Relational Algebra and Structured Query Language together through programming. Students write query programs consisting of sequences of Relational Algebra operations vs. Structured Query Language SELECT statements. The query programs can then be run interactively, allowing students to…
Descriptors: Algebra, Programming, Teaching Methods, Database Design
McMaster, Kirby; Sambasivam, Samuel; Anderson, Nicole – Information Systems Education Journal, 2011
In this paper, we describe a Relational Algebra Query Language (RAQL) and Relational Algebra Query (RAQ) software product we have developed that allows database instructors to teach relational algebra through programming. Instead of defining query operations using mathematical notation (the approach commonly taken in database textbooks), students…
Descriptors: Algebra, Computer Software, Programming, Databases
Brese, Falk, Ed. – International Association for the Evaluation of Educational Achievement, 2012
The goal for selecting the released set of test items was to have approximately 25% of each of the full item sets for mathematics content knowledge (MCK) and mathematics pedagogical content knowledge (MPCK) that would represent the full range of difficulty, content, and item format used in the TEDS-M study. The initial step in the selection was to…
Descriptors: Preservice Teacher Education, Elementary School Teachers, Secondary School Teachers, Mathematics Teachers
Mapping among Knowledge Bases and Data Repositories: Precise Definition of Its Syntax and Semantics.
Peer reviewedBlanco, Jose Miguel; Goni, Alfredo; Illarramendi, Arantza – Information Systems, 1999
Discussion of data repositories available in global information systems focuses on facilitating access by providing semantic views. Highlights include the mapping relation; syntax and semantics of the mapping; query formulation and processing; terminological systems for semantic views; and relational algebraic expressions. (LRW)
Descriptors: Algebra, Databases, Global Approach, Information Systems
Capani, Antonio; De Dominicis, Gabriel – 1996
This paper proposes a model for a general interface between people and Computer Algebra Systems (CAS). The main features in the CAS interface are data navigation and the possibility of accessing powerful remote machines. This model is based on the idea of session management, in which the main engine of the tool enables interactions with the…
Descriptors: Algebra, Computation, Computer Interfaces, Computer Oriented Programs
