SQL

Explain the differences between a left join, right join, inner join, and outer join?

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Behavioral
  • Explain the differences between a left join, right join, inner join, and outer join?
  • What are some of the differences between an inner join and an outer join?
  • Describe the differences between a left join and a right join in SQL.
  • How do you determine when to use an inner join versus an outer join?
  • What are the key differences between a left join and an inner join?
  • Explain the differences between a right join and an outer join in SQL.
  • Can you differentiate between a full outer join and a left join?
  • What are some of the key distinctions between a right join and an inner join?
  • How do you decide when to use a left join as opposed to a right join in SQL?
  • Can you break down the differences between an inner join, left join, and right join in detail?
  • Can you explain the various types of joins in SQL and their differences?

Interview question asked to Data Scientists interviewing at Blizzard, VeriSign, Boeing and others: Explain the differences between a left join, right join, inner join, and outer join?.