Master SQL Fundamentals

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Questions and Answers

What is SQL primarily used for?

  • Managing data in a non-relational database
  • Managing data in a relational database management system (correct)
  • Handling unstructured data
  • Stream processing in a non-relational data stream management system

What are the two main advantages of SQL over older read-write APIs?

  • Accessing one record with many commands and eliminating the need to specify how to reach a record
  • Accessing one record with one command and specifying how to reach a record
  • Accessing many records with one single command and specifying how to reach a record
  • Accessing many records with one single command and eliminating the need to specify how to reach a record (correct)

What types of statements does SQL consist of?

  • A data query language, a data definition language, a data control language (correct)
  • A data definition language, a non-relational language, a data control language
  • A data control language, a non-relational language, a data query language
  • A data query language, a data definition language, a non-relational language

When was SQL introduced?

<p>1970s (C)</p> Signup and view all the answers

What is SQL based upon?

<p>Relational algebra and tuple relational calculus (A)</p> Signup and view all the answers

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