Problem with a sequence visibility...

Question

Greetings, everybody
I have a problem:
In a Java application, there's a line that try to get a sequence value, as follows:
PreparedStatement stmt = conn.prepareStatement("select any_schema.SQ_WHATEVER.nextval as NEXTVAL from dual"); //where conn is a java.sql.Connection instance
rs = stmt.executeQuery(); //rs is a java.sql.ResultSet
When it runs, it raises the exception:
java.sql.SQLException: ORA-00942: table or view does not exist
...but the sequence EXISTS!!!
I've checked the return in SQL Plus, I've checked the permissions to access the sequence...
...and I couldn't find the root of this problem!
Could somebody help me???
Since now, I thank you!

Answer 1

Jeff,
Maybe I'm misunderstanding your question, but the following works for me, using Oracle 9i (9.2.0.4) database on SUN [sparc] Solaris 9, JDK 1.4.2_07 and "ojdbc14.jar" JDBC driver.
First I create the sequence and synonym (database objects) using SQL*Plus:
sqlplus avi/avi
SQL> create sequence AVI;
Sequence created.
SQL> create public synonym AVI for AVI;
Synonym created.And here is the java code:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class SqlQry00 {
  public static void main(String[] args) {
    Connection dbConn = null;
    ResultSet rs = null;
    Statement s = null;
    String url = "jdbc:oracle:thin:scott/tiger@host:1521:orcl";
    String sql = "select AVI.NEXTVAL from DUAL";
    System.out.println("\nSQL:\n" + sql + "\n");
    try {
      Class.forName("oracle.jdbc.driver.OracleDriver");
      dbConn = DriverManager.getConnection(url);
      s = dbConn.createStatement();
      rs = s.executeQuery(sql);
      if (rs.next()) {
        System.out.println(rs.getBigDecimal(1));
    catch (Exception x) {
      x.printStackTrace();
    finally {
      if (rs != null) {
        try {
          rs.close();
        catch (Exception x) {
          System.err.println("Failed to close result set.");
          x.printStackTrace();
      if (s != null) {
        try {
          s.close();
        catch (Exception x) {
          System.err.println("Failed to close statement.");
          x.printStackTrace();
      if (dbConn != null) {
        try {
          dbConn.close();
        catch (Exception x) {
          System.err.println("Failed to close database connection.");
          x.printStackTrace();
}Notice how (in the java code) I connect to the database as user SCOTT? (In other words, not as user AVI -- who owns the sequence.)
Good Luck,
Avi.