TABLET(ID:979/tab008)

for The Algebra Based Language for Enquiring of Tables

Query language based on Codd’s relational algebra from University of Massachussetts

References:
  • Stemple, D.W., Becker, M., Welty, C., and Mayfield, W. "TABLET: The algebra based language for enquiring of tables" Tech. Rep. 78-19, Computer and Information Science Dep., Univ. Massachusetts, Amherst, Mass., Nov, 1978. view details
  • C. Welty et al, "Human Factor Comparison of a Procedural and a Non-procedural Query Language" view details Abstract: Two experiments testing the ability of subjects to write queries in two different query languages were run. The two languages, SQL and TABLET, differ primarily in their procedurality; both languages use the relational data model, and their Halstead levels are similar. Constructs in the languages which do not affect their procedurality are identical. The two languages were learned by the experimental subjects almost exclusively from manuals presenting the same examples and problems ordered identically for both languages. The results of the experiments show that subjects using the more procedural language wrote difficult queries better than subjects using the less procedural language. The results of the experiments are also used to compare corresponding constructs in the two languages and to recommend improvements for these constructs.
          in ACM Trans Database Sys 6(4) (Dec 1981) view details