What is a CROSS JOIN? Give an example of its syntax.
Answer to relevant QuestionsWhat three join types are included in the OUTER JOIN classification? What is the difference between UNION and UNION ALL? Write the syntax for each.Using tables named T1 and T2, write a query example for each of the three join types you described in Question 2. Assume that T1 and T2 share a common column named C1.Write the query that will show the invoice number, the invoice amount, the average invoice amount, and the difference between the average invoice amount and the actual invoice amount.Write a query to display the customer code, first name, and last name of all customers who have had at least one invoice completed by employee 83649 and at least one invoice completed by employee 83677. Sort the output by ...
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