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Oracle® 9i SQL Exam Cram™ 2 (Exam 1Z0-007) by Gavin Powell

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Chapter 8. Subqueries and Other Specialized Queries

Terms You Need to Understand

  • ✓ Subquery

  • ✓ Scalar subquery

  • ✓ Single row subquery

  • ✓ Multiple row subquery

  • ✓ Multiple column subquery

  • ✓ Correlated subquery

  • ✓ Regular subquery

  • ✓ Inline view

  • ✓ Nested subquery

  • ✓ Composite query

  • ✓ Hierarchical query

  • ✓ Parallel query

  • Subqueries and Other Specialized Queries Flashback query

  • Subqueries and Other Specialized Queries The WITH clause

Concepts You Need to Master

  • ✓ Different types of subqueries

  • ✓ Where subqueries can be used

  • ✓ Set operators

  • ✓ Hierarchical query operators

  • ✓ Subquery comparison conditions

This chapter covers all the aspects of subquery processing, ...

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