Question: We are on Chapter 8 of Practical Guide to Using SQL in Oracle; GROUP BY and HAVING: For the following Table: Display the average salary

We are on Chapter 8 of Practical Guide to Using SQL in Oracle; GROUP BY and HAVING:

For the following Table:

We are on Chapter 8 of Practical Guide to Using SQL in

Display the average salary grouped by job title when salary is counted as 0 if it is null and include a value for no job title?

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