Conference Paper

ERROL: An Entity-Relationship, Role Oriented, Query Language.

Conference: Proceedings of the 3rd Int. Conf. on Entity-Relationship Approach (ER'83)
Source: DBLP
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    ABSTRACT: The need of a friendly man-machine interaction is becomingcrucial for a large variety of applications, in particular, thoserequiring frequent extraction of information from the database.Experience suggests that traditional query languages are notfriendly enough for the casual user: she/he is requested toformulate queries in a textual language, without any iconic orspatial clues to help the querying process. A new generation oflanguages (visual languages) has been recently investigated,...