This subsection describes the application scopes of service components that use a database queue.
Service components that use a database queue must be created according to the following version specifications:
When a service component uses a database queue, you can use BytesMessage as the message type for sending a message from a service requester to a service component.
BytesMessage is the only message type that can be used.
HiRDB is the only database that can create a database queue.
The schema used in the service component in which a database queue is used must satisfy the conditions explained in "2.6.5 Scoping of XML schema". For details on schema conditions, see "2.6.5 Scoping of XML schema".