8. In the basic SQL SELECT statement, it is SELECT ______ FROM ______.

A. table, database

B. column, table

C. record, database

D. row, table

10. Which one of the following statements is true?

a. Big data cannot be manipulated.

B. With current technology, the majority of big data is usable for researchers and practitioners.

C. The tools for analysing big data are more accessible.

D. Big data is free from errors.

13. Which one of the following is a false statement on the advantages of visualisation?

a. People process visualisations faster than information in written format.

B. Information can be found more quickly.

C. Visualisations can help more people to learn and understand better about the data.

D. It takes a lot less time to build visualisations than write a report.

14. Which one of the following is not a benefit of standard SQL?

a. cross-system communication

B. retrieve information from many sources

C. increased dependence on a single vendor

D. reduced training costs

15. For the following tables, which one is more likely to have a two-part primary key (than others)?

a. Purchase

B. Inventory

C. Customer

D. Purchase-Inventory