Key Points

Database Query using SQL

Important Points

  • Database Query using SQL builds on ideas you already learnt in earlier classes.
  • Focus first on definitions, then on examples, then on practice.
  • Diagrams / flow-charts make revision much faster.

Remember This

  • One-line definition of Database Query using SQL.
  • The trickiest example — the one you got wrong the first time.

Exam Tips

  • Read the question twice before choosing an option.
  • In MCQs, eliminate two wrong options first.
  • Write the key term in your answer even in short questions.

Definitions

Database Query using SQL
The main concept covered in this chapter of Informatics Practices.
Concept map
A visual summary linking the small ideas that make up a bigger idea.