Sequences in Databases and Pseudocolumns Quiz
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Questions and Answers

In database management, what is the primary function of a view?

  • To act as an alias for tables (correct)
  • To establish relationships between tables
  • To create summaries of data
  • To decompose tables

How are synonyms useful in database management?

  • They act as alternate names for database objects (correct)
  • They provide hierarchical data representation
  • They are used to create complex queries
  • They ensure data integrity in tables

Which of the following ensures that all updates and inserts meet certain conditions in a view definition?

  • Uncheck
  • With
  • Check
  • With Check (correct)

Are views capable of containing all rows of a table?

<p>TRUE (B)</p> Signup and view all the answers

What is the significance of indexes in a database schema?

<p>To improve data retrieval performance (B)</p> Signup and view all the answers

What differentiates a view from a table in a database system?

<p>Views provide a customizable virtual representation of data stored in tables (A)</p> Signup and view all the answers

When creating a view, what is the purpose of using 'With Check Option'?

<p>'With Check Option' ensures that inserted rows meet view criteria (A)</p> Signup and view all the answers

'Synonyms' in a database serve which primary purpose?

<p>Act as secure aliases for database objects (C)</p> Signup and view all the answers

'Sequences' in a database are used primarily for:

<p>Generating unique numeric identifiers (C)</p> Signup and view all the answers

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