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What is the difference between von Neumann architecture and Harvard architecture
If a table contains duplicate rows, will a query display duplicate values by default? How can you eliminate duplicate rows from a query result?
What is a unique constraint? How is it different from a primary key?
What’s the difference between a view and a materialized view?
What is the purpose of the BETWEEN keyword?
What are the different DML commands in SQL? Give a description of their purpose.
What are the different DDL commands in SQL? Give a description of their purpose.
What is the difference between SQL and T-SQL?
What is the difference between SQL and PL/SQL?