# Differences using the Connection.setReadOnly method

In the embedded mode, when the Connection.setReadOnly method has `true` as the parameter, the connection is marked as a read-only connection. When using a Network Server, the Connection.setReadOnly(true) method is ignored and the connection is not marked as a read-only connection.

Parent topic: Differences between running Derby in embedded mode and using the Network Server
Related concepts
Differences between the embedded client and the network client driver
Updatable Result Sets
User authentication differences
Differences in JDBC 3.0 methods
Related reference
Error message differences