Independent database schemas
نویسندگان
چکیده
منابع مشابه
Drawing database schemas
A wide number of practical applications would benefit from automatically generated graphical representations of database schemas, in which tables are represented by boxes, and table attributes correspond to distinct stripes inside each table. Links, connecting attributes of two different tables, represent referential constraints or join relationships, and may attach arbitrarily to the leftor to...
متن کاملAutomatically Inferring Database Schemas
The goal of this research is to investigate the possibility of automatically inferring a database schema. Our motivation is to make the task of the database designer easier. We require the designer only to provide a picture of how s/he expects the database to be used. This is provided in the form of natural language queries which the database might be expected to answer. The system synthesises ...
متن کاملModeling and Merging Database Schemas
In this paper we will construct and investigate various aspects of a new, formal model for database structures. In particular we will concentrate on providing a general model for database schemas which will be basically functional ([HK87]), and will support specialization relationships. Wherever possible we try to minimize the number of different concepts involved in modelling both schemas and ...
متن کاملRenormalization of NoSQL Database Schemas
NoSQL applications often use denormalized databases in order to meet performance goals, but this introduces complications. In particular, application evolution may demand changes in the underlying database, which may in turn require further application revisions. The NoSQL DBMS itself can do little to aid in this process, as it has no understanding of application-level denormalization. In this ...
متن کاملA Database of Narrative Schemas
This paper describes a new language resource of events and semantic roles that characterize real-world situations. Narrative schemas contain sets of related events (edit and publish), a temporal ordering of the events (edit before publish), and the semantic roles of the participants (authors publish books). This type of world knowledge was central to early research in natural language understan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Computer and System Sciences
سال: 1984
ISSN: 0022-0000
DOI: 10.1016/0022-0000(84)90079-5