References

Maddala, Deepa. 2022. “Quick Start Guide to SQL.” LinkedIn; LinkedIn Learning. https://www.linkedin.com/learning/quick-start-guide-to-sql/filtering-group-results?autoSkip=true&resume=false&u=76216298.

Rischert, Alice. 2009. Oracle SQL by Example. 4th ed. Prentice Hall Professional Oracle Series. Upper Saddle River, NJ: Prentice Hall. https://learning.oreilly.com/library/view/oracle-sql-by/9780137047345/.