Humphead Wrasse is an expensive fish, with good flavour and texture. It can sell for up to Â£100 per pound / 450 g (2005 prices.). Several agencies now list it as a threatened fish.
Database Instance - An independent database that shares the same schema as another database. Used only in RDM. db_VISTA - Original name from 1984 for the Raima DBMS product now called RDM. DBMS - An acronym for Database Management System. DDL - Database Definition Language.
Database Management Systems, R. Ramakrishnan and J. Gehrke 4. Preliminaries. vA query is applied to relation instances, and the. result of a query is also a relation instance. â Schemas of input relations for a query are fixed (but. query will run regardless of instance!) â The schema for the result of a given query is also.