Titlebook: Database Programming Languages (DBPL-4); Proceedings of the F Catriel Beeri,Atsushi Ohori,Dennis E. Shasha Conference proceedings 1994 Spri

vitrectomy

顯而易見(jiàn)

Bounded Fixpoints for Complex Objectscoding of . with unbounded fixpoints into flat relations. We also define a complex object logic based language with fixpoints and prove that its range restricted fragment is equivalent to . with bounded fixpoints.

混合物

The Triumph of the Rational Subjectare not the most technically superior, and SQL became the dominant language in the relational database world, despite many clearly better ideas: Quel and E-Quel from Ingres, the Relational Model book produced by Michael Brodie et al, and so forth. Now SQL is the standard database interface even if your database is not relational!

Amylase

有危險(xiǎn)

Matti Kamppinen,Antti Revonsuo,Seppo Sajamaon. We also show how to generate efficient algorithms for checking a large class of constraints. We show how all the techniques presented took great advantage of the underlying type system which provide a significant help both in solving (1) and (2). Last the current status of the Thémis prototype is presented.

Palpable

Anil K. Maheshwari,Rakesh Guptaver these languages: it is naturally embedded in functional languages, it is readily extensible, and it has a compact equational theory. Therefore, it is used in this report as a basis for investigating aggregate functions.

languor

Control-Group

A Functional Object Database LanguageL and these functional languages have w.r.t. each other in terms of (i) the above-mentioned flexibility in the type system, which we consider essential for . and (ii) the orthogonality of the language.

gerrymander

Thémis: a database programming language with integrity constraintson. We also show how to generate efficient algorithms for checking a large class of constraints. We show how all the techniques presented took great advantage of the underlying type system which provide a significant help both in solving (1) and (2). Last the current status of the Thémis prototype is presented.

MAIM

Aggregate Functions, Conservative Extension, and Linear Ordersver these languages: it is naturally embedded in functional languages, it is readily extensible, and it has a compact equational theory. Therefore, it is used in this report as a basis for investigating aggregate functions.