Relational Query Formulation by Pseudonatural Language Text Manipulation
نویسندگان
چکیده
This paper proposes an approach which allows users to edit natural language fragments given by the system and to obtain a pseudonatural language text describing the meaning of the intended query. Algorithms presented here translate manipulations on the pseudonatural language text being edited intro changes on a query hypergraph as its internal representation, calculate possible quantifier scopes on the hypergraph, and translate the interpretation specified by the user into an SQL query.
منابع مشابه
Translation of SQL Queries Containing Nested Predicated into Pseudonatural Language
An approach to support query verification by translating SQL queries into easy-to-read pseudonatural language expressions is proposed. The method discussed here converts various types of SQL queries, including simple and composite nested ones. Since it employs no complex natural language processing technique, it is feasible even on small computers.
متن کاملClass Algebra as a Description
A class algebra has been used to model the query and data manipulation language for a prototype object-oriented database system which is being implemented for the WorldWide Web ?]. The Prolog prototype (i.e. operational semantics, if you will) is lo-dan=prologProgs=modeloo:txt. The class algebra includes a Boolean algebra for class union, intersection, and complement (i.e. diierence with any). ...
متن کاملانتخاب مناسب‌ترین زبان پرس‌وجو برای استفاده از فرا‌‌پیوندها جهت استخراج داده‌ها در حالت دیتالوگ در سامانه پایگاه داده استنتاجی DES
Deductive Database systems are designed based on a logical data model. Data (as opposed to Relational Databases Management System (RDBMS) in which data stored in tables) are saved as facts in a Deductive Database system. Datalog Educational System (DES) is a Deductive Database system that Datalog mode is the default mode in this system. It can extract data to use outer joins with three query la...
متن کاملGeo-Relational Algebra: A Model and Query Language for Geometric Database Systems
The user's conceptual model of a database system for geometric data should be simple and precise: easy to learn and understand, with clearly defined semantics, expressive: allow to express with ease all desired query and data manipulation tasks, efficiently implementable. To achieve these goals we propose to extend relational database management systems by integrating geometry at all levels: At...
متن کاملDesign and Implementation of a Database Environment for the Manipulation of Structured Documents
A method for implementing a structured document database system is presented. The present-day systems dealing with structured or tagged documents have not been able to produce capabilities that even simple database systems possess-the ability to query the database based on the various properties of the database. Research in this area also has not been able to produce query languages and visual ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1993