Keywords: Multiple connections, from single application running in embedded mode, Multi-threading, and JDBC

# Multi-connection and multi-threading

Derby allows multiple simultaneous connections to a database, even in embedded mode. Derby is also fully multi-threaded, and you can have multiple threads active at the same time. However, JDBC semantics impose some limitations on multi-threading. See the Java DB Developer's Guide for more information.

Parent topic: Multiple-client features available in Derby
Related concepts
Row-level locking
Multiple concurrency levels
Administrative tools