1. Write the syntax for union and union all and explain the difference between the two.
2.Explain what a cross join is, support your answer with a realistic syntax.
3.Explain the three types of joins that are part of the outer join classification.
1. Write the syntax for union and union all and explain the difference between the two.
2.Explain what a cross join is, support your answer with a realistic syntax.
3.Explain the three types of joins that are part of the outer join classification.