A data dictionary is a special file that contains?
A. The names of all fields in all files
B. The data types of all fields in all files
C. The widths of all fields in all files
D. All of the mentioned
Answer:A
A data dictionary is a special file that contains?
A. The names of all fields in all files B. The data types of all fields in all files C. The widths of all fields in all files D. All of the mentioned
Explanation: The data dictionary is structured in tables and views, just like other database data.