Question 1: Can you think of ways to validate the information from SQL queries or reports, to assure a level of accuracy in the results? When, if at all, is it better to extract raw data instead of summary information and what are the best ways to present any retrieved information (e.g., tables, diagrams, narrative)? (300-500 words and need reference)
Question 2: What is the primary reason and the need to aggregate data in health care? Explain your answer with examples. (300-500 words and need reference).