Controls when an access service allocates conversations with the target database system.
Allocate=[connect | request]
connect
connect specifies an access service to allocate the conversation when the client connects and to hold it open for the duration of the client connection.
request specifies an access service to allocate a new conversation each time the client application sends a request and to deallocate the conversation after each request.
There is a large performance penalty when using the request setting.
