Optimizing Trips From Server to JDBC Application Fetching a Long Raw

(Doc ID 414219.1)

Last updated on AUGUST 03, 2016

Applies to:

JDBC - Version and later
Information in this document applies to any platform.
***Checked for relevance on 14-May-2013***


An application is using Oracle JDBC driver in order to fetch Long Raw column (CREATE TABLE TST (data long raw);)

This is done by using the Streaming method with the following
sequence of code :

bar = new byte[32768];
stmt = _conn.createStatement();
rset = stmt.executeQuery("SELECT data FROM TST");
while (rset.next()) {
total = 0;
is = rset.getBinaryStream(1);
if (is != null) {
while ((rd = is.read(bar)) > 0) {
total += rd;

The goal of this document  is to show one way to optimize the number of trips from the server to the JDBC application (client) when fetching  Long Raw type data


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