Explanation:We use the term snapshot of data to mean the value of the data at a particular point in time. 10. Representations such as the in the dept year relation, with one column for each value of an attribute, are called _______; they are widely used in spreadsheets and reports and in data analysis tools.
A. Cross-tabs
B. Snapshot
C. Both a and b
D. All of the mentioned
Answer:A
Explanation:We use the term snapshot of data to mean the value of the data at a particular point in time. 10. Representations such as the in the dept year relation, with one column for each value of an attribute, are called _______; they are widely used in spreadsheets and reports and in data analysis tools.
A. Cross-tabs B. Snapshot C. Both a and b D. All of the mentioned
Explanation:SQL includes features to convert data from a normal relational representation to a crosstab. Sanfoundry Global Education & Learning Series – Database Management System.