Other Relational Languages

• Query-by-Example (QBE)
  • Basic Structure
  • Simple Queries
  • Queries on Several Relations
  • The Condition Box
  • The Result Relation
  • Ordering the Display of Tuples
  • Aggregate Operations
  • Modifying the Database
    • Insertion
    • Updates
• Quel
  • Converting Queries Easily Into Any Language