{
if (cnx.getAutoCommit())
{
cnx.setAutoCommit(false);
}
if (rdba.supportsTransactionIsolationLevel(reqdIsolationLevel))
{
int currentIsolationLevel = cnx.getTransactionIsolation();
if (currentIsolationLevel != reqdIsolationLevel)
{
cnx.setTransactionIsolation(reqdIsolationLevel);