In preparing a DFD , when data are transformed through a process , the symbol used should be
. Question 16 .
When the human resources manager wants to gather data about vacation and personal day usage by employees and by departments , the manager would use which language ?
. Question 17 .
The potential inconsistency that could occur when there are multiple occurrences of a specific data item in a database is called the
. Question 18 .
The schema that provides an organization-wide view of the entire database is known as the
. Question 19 .
The database requirement that foreign keys must be null or have a value corresponding to the value of a primary key in another table is formally called the
. Question 20 .
In a relational database , requiring that every record in a table have a unique identifier is called the
. Question 21 .
Which of the following is an opportunity that could contribute to employee fraud ?
. Question 22 .