SQL

Differentiate between left join, union and right join.

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Mapbox

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Behavioral
  • Differentiate between left join, union and right join.
  • Please explain the differences between left join, right join, and union operations in database querying.,
  • How would you distinguish between left join, union, and right join in the context of SQL queries?
  • In terms of SQL, what are the key differences between a left join, a right join, and a union?
  • Could you detail the differences between a left join, a union, and a right join when retrieving data from a database?
  • What distinguishes a left join from a union and a right join in SQL?
  • Can you clarify how a left join, a right join, and a union are different from each other in SQL operations?
  • How are left joins, unions, and right joins uniquely utilized in SQL database operations?
  • What are the variations in use and outcome between a left join, a union, and a right join in SQL?
  • Could you explain the distinctions between performing a left join, a union, and a right join in the realm of SQL?
  • Can you differentiate between a left join, a union, and a right join in SQL?

Interview question asked to Data Scientists interviewing at Yandex, Mapbox, Pandora and others: Differentiate between left join, union and right join..