A natural language interface allows database system users to input a query in a natural language such as English or French rather than in a formal query language. Such interfaces could also provide for natural language updates, but this paper deals only with queries. The goal of a natural language interface is to permit users to express their information needs in their own language and in conce...

Information is playing an important role in our lives. One of the major sources of information is databases. Databases and database technology are having major impact on the growing use of computers. Almost all IT applications are storing and retrieving information from databases. Retrieving information database requires knowledge of database languages like SQL. The Structured Query Language (S...

A natural language interface is directed toward the database query languages that access machine stored data. A pattern driven transformation mechanism supports natural language access. A natural language is mapped onto a more formal computer database language. A human-like "understanding" of the query statement is not required. The transformation mechanism is separate from the target database ...

This paper outlines an approach to the development of a deductive object-oriented database system. The approach presented uses a formally defined object-oriented data model as the starting point for the development of a logic query language and an imperative database programming language. These languages can be used independently the logic language for expressing queries or defining rule-based ...

In this paper we propose a naturalartificial hybrid language for database access. The global construction of a sentence in this language is highly schematic, but allows expressions in the chosen language such as Japanese or English. Its artificial language part, SML, is closely related to our newly introduced data model, called scaled lattice. Adopting Japanese as its natural language part, we ...

We describe a functional database language OR-SML for handling disjunctive information in database queries, its implementation in Standard ML [10], and its interface to HOL90. The core language has the power of the nested relational algebra, and it is augmented with or-sets which are used to deal with disjunctive information. Sets, or-sets and tuples can be freely combined to create objects, wh...

In this research, an intelligent system is designed between the user and the database system which accepts natural language input and then converts it into an SQL query. The research focuses on incorporating complex queries along with simple queries irrespective of the database. The system accommodates aggregate functions, multiple conditions in WHERE clause, advanced clauses like ORDER BY, GRO...

A data dictionary system with a query compiler is implemented in a symbol manipulation language, separate from the underlying database system. The query compiler (or program generator) generates COBOL programs for database access. These programs are optimized at generation time using information from the data dictionary. The implementation technique makes it possible to combine pilot implementa...