Question: What are all the different normalizations? (Define the different Normal form describe it.) Difference between delete, truncate and Drop command? What is a constraint and

What are all the different normalizations? (Define the different Normal form describe it.)

Difference between delete, truncate and Drop command?

What is a constraint and what are the different types of it?

What are joins and why are used what are different kind of joins and the difference between them?

What are the Joins? What is the difference between left join and cross join?

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