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USING APEX 1. Write a SQL statement using employees table to display its number of rows, the lowest salary, the highest salary, the sum of
USING APEX
1. Write a SQL statement using employees table to display its number of rows, the lowest salary, the highest salary, the sum of all salaries, and the average of all salaries.
2. Write a SQL statement using employees table to display the number of rows, and the sum of salary of those under Department_ID of 20.
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