G061 - Data Dictionary

Learning Objectives: describe the components of a data dictionary By the end of this topic you should be able to: describe the components of a data dictionary

Data Dictionary: is a complete description of the database

Data Dictionary contains: names of tables (entities) names of fields (attributes), data types, field lengths, validation checks, data codes, primary key fields identified, the relationships between entities, list of reports, list of queries, access rights

Examination questions Describe three main components of a data dictionary. [6] G061 January 2009 Q2 The field name is one component of a data dictionary. Identify and describe two other components of a data dictionary associated with fields. [4] G061 June 2010 Q4 The identification of keys is one item held in a data dictionary related to a field. Describe two other items held in a data dictionary related to a field. [5] G061 January 2012 Q5