Instructions: Use the provided sample database tables (patients, providers, visits, ed_visits, admissions, discharges) to answer the following questions. Write SQL queries to perform grouping and ...

The aggregate functions are often used with the GROUP BY clause to calculate an aggregate value for each group e.g., the average value by the group or the sum of values in each group. The following ...

Learn how to use SQL query functions to perform data analysis tasks, such as aggregating, filtering, sorting, and transforming data. Find out how to use aggregate, window, string, date and time ...

In SQL, you may be able to use any of the following aggregate functions: COUNT() SUM() AVG() MIN() MAX() However, when using any of the above aggregate functions, remember the following extra ...

Hi!I often run queries on my company’s Data Warehouse, which runs DB2. Due to the nature of my permissions, I cannot create Views or new Tables – thus, everything generally has to be done in a ...