INNER JOIN SQL Quiz
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What does INNER JOIN do?

  • Return every row in joined tables
  • Filter databases to return only columns that exist in every table
  • Combine tables and save them as a new table
  • Compare tables and return only the rows that have a matching value in a specified column (correct)

    • What is the primary function of INNER JOIN?

  • Combine tables and save them as a new table
  • Return every row in joined tables
  • Compare tables and return only the rows that have a matching value in a specified column (correct)
  • Filter databases to return only columns that exist in every table

    • When using INNER JOIN, what happens to rows without matching values?

  • They are combined and saved as a new table
  • They are returned along with matching rows
  • They are compared to return only the unique rows
  • They are filtered out and not included in the result (correct)

    • Which query will return every name that starts with the prefix 'Dr.'?

    <p>WHERE name LIKE 'Dr.%'</p> Signup and view all the answers

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