The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a
With respect to data input, the most accurate description of batch control is
A computer file contains several records. What does each record contain?
The model for a record management system might be
A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As
A command that lets you change one or more fields in a record is
The designer of a form includes
Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time?
Two files may be joined into a third file if
A _____ means that one record in a particular record type may be related to more than one record of another record type.
The way a particular application views the data from the data base that the application uses is a :
Data security threats include
Related fields in a data base are grouped to form
If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it.
A multiple-form file management system
Data encryption techniques are particularly useful for
In SQL, which command is used to select only one copy of each set of duplicable rows
Characteristic(s) of a distributed MIS structure is
The data-base environment has all of the following components except:
Which command(s) is(are) used to redefine a column of the table in SQL ?
Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL?
A compound key
An operation that will increase the length of a list is
A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa.
The modify operation is likely to be done after
The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.
It is more accurate to define a _____ as a variety of different record types that are treated as a single unit
The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in
In SQL, the ALTER TABLESPACE command is used
The distinguishable parts of a record are called
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