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.
In the data dictionary, composite items are decomposed or partitioned down to the data element level, and each data element is fully defined (as described earlier). 25.4.3 Keys and relationships In a database, an entity is a thing about which data are stored and an occurrence is a single instance of an entity composed of data elements (or attributes).