Sybase architecture uses a “streaming mode” of data transfer. Rather than sending a short block of data and waiting for a reply, the mainframe continuously sends data until the client stops accepting it. When the client stops accepting data, normal SNA pacing functions suspend data transfer.
For applications that select a small set of data, process it, then request the next block of data, it is best to use RPC parameters to specify the ID of a set of records. If the client RPC parameters are set up as return parameters, and the Gateway-Library TDSETPRM specifies the ID of the desired set of records, Server Option support returns the updated RPC value to the client. The client can use this value to invoke the next set of records.
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