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Home » Quiz » Data Engineer Quiz

Which of the following SQL commands is used to retrieve data from a database?

Difficulty level
  • SELECT
  • DELETE
  • UPDATE
  • INSERT
The SELECT command is used to retrieve data from a database by specifying the columns to retrieve and the table(s) to retrieve them from, along with optional conditions.
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Data Engineer Quiz
Quiz
A(n) ________ entity in an ERD depends on another entity for its existence and cannot be uniquely identified by its attributes alone.
Which of the following data modeling techniques is commonly used in dimensional data warehousing?

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  • Scenario: After finalizing the logical data model for a new database, what would be your next step in the design process?
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