36;seq_name.NEXTVAL FROM DUAL");
}  
if (!@ora_exec($Query_ID)) {
$this->halt("<BR>ora_exec() failed:<BR>nextID function");
}
if (@ora_fetch($Query_ID) ) {
$next_id = ora_getcolumn($Query_ID, 0);
}
else {
$next_id = 0;
}
if ( $Query_ID > 0 ) {
ora_close($Query_ID);
}

return $next_id;
}

function disconnect() {
if($this->Debug) {
echo "Debug: Disconnecting $this->Query_ID...<br>n";
}
if ( $this->Query_ID < 1 ) {
echo "<B>Warning</B>: disconnect(): Cannot free ID $this->Query_IDn";
# return();
}
ora_close($this->Query_ID);
$this->Query_ID=0;
}

/* private: error handling */
function halt($msg) {
if ($this->Halt_On_Error == "no")
return;

$this->haltmsg($msg);

if ($this->Halt_On_Error != "report")
die("Session halted.");
}

function haltmsg($msg) {
printf("</td></tr></table><br><b>Database error:</b> %s<br>n", $msg);
printf("<b>Oracle Error</b>: %s (%s)<br>n",
$this->Errno,
$this->Error);
}

function table_names() {
$this->connect();
$this->query("
SELECT table_name,tablespace_name
FROM user_tables");
$i=0;
while ($this->next_record())
{
$i

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