• What is SQL?
  • What are the different types of SQL statements?
  • What are the advantages of SQL?
  • Define DDL and DML?
  • What do you understand by joins? Explain various types of it?
  • What is the difference between inner and outer join?
  • What is the difference between left join and right join?
  • What you mean by select distinct statement?
  • How many types of clause do you use?
  • When do we use aggregate functions?
  • List some aggregate functions you know?


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