Locking, concurrency, and isolation

This section discusses topics pertinent to multi-user systems, in which concurrency is important. Derby is configured by default to work well for multi-user systems. For single-user systems, you might want to tune your system so that it uses fewer resources; see Lock granularity.

• Isolation levels and concurrency
  
• Configuring isolation levels
  
• Lock granularity
  
• Types and scope of locks in Derby systems
  
• Deadlocks