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.

Your paper must be at least 250 words with three outside sources. (Ref in APA V7 Format) Provide in-depth and thought-provoking analysis showing your deep understanding of the topic.

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