Connection-level localization values define the localization for a specific client-server connection.
A new connection inherits default localization values from its parent context, so an application needs to define new localization values for a connection only if the parent context’s values are not acceptable.
When an application calls ct_connect to open a connection, the server determines whether or not it can support the connection’s language and character set. If it cannot, the connection attempt fails.
This functionality is different from that of DB-Library, where a connection uses the Server default native language unless the application calls DBSETLNATLANG to set the native language name.