Question: SQL Joins: Answer 1 of 3 (include question number in post): What is a Inner joins vs. outer joins? What is a Natural Join vs.

SQL Joins: Answer 1 of 3 (include question number in post):

What is a Inner joins vs. outer joins?

What is a Natural Join vs. Cross join?

What is a Subquery?

Transactions: Answer 1 of 2 (include question number in post)

What is a Transaction? Show an example.

What is a purpose of Lock Manager when a RDBMS processes transactions?

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