31. What is the abbreviation used for a software package that permits the users to create, retrieve and maintain records in a database?
32. Which of the following is not an advantage of the data-base approach?
33. A data dictionary doesn't provide information about:
34. Data encryption techniques are particularly useful for
35. It is more accurate to define a _____ as a variety of different record types that are treated as a single unit
36. A logical schema
37. Queries to a database
38. In order to use a record management system
39. In SQL, which command is used to select only one copy of each set of duplicable rows
40. The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in
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