Problems with DATE in a preparedStament with ORACLE 9.2

Question

Hello,
I am trying to execute a SELECT query in ORACLE 9.2.
I am using a preparedStatement, (appending in a StringBuffer) and the query finishes as follows:
query.append("AND ( ? >= TO_DATE(?,'DD/MM/YYYY') AND ? <= TO_DATE(?,'DD/MM/YYYY'))");
Where those parameters are:
pstmt.setString(10, "s.fe_entrega");
pstmt.setString(11, "01/06/2004");
pstmt.setString(12, "s.fe_entrega");
pstmt.setString(13, "31/12/2004");
WHen executing the query, a SQLException raises:
"java.sql.SQLException: ORA-01858: se ha encontrado un car�cter no num�rico donde se esperaba uno num�rico" (A non numeric character was found when numeric expected, i think is the exception in English)
I have also tried with the formats "YYYY/MM/DD" and "YYYY/DD/MM", with same result.
can anybody suggest me anything to deal with this issue?
Thank you very much and best regards

Answer 1

MIke, I have changed the query. Even when using dates instead of String, it gives me a "a non-numeric character was found where a numeric was expected" Exception.
My method now reads as follow:
try{   
String fec = "01/06/2004";
String fecFinal = "31/12/2004";
SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
java.sql.Date dInicial = new java.sql.Date(formatter.parse(fec).getTime());
java.sql.Date dFinal = new java.sql.Date(formatter.parse(fecFinal).getTime());
UtilConectores uc = new UtilConectores();
boolean conexionAbierta = uc.abreConexion();
if (conexionAbierta == true){
// Crea objeto DatabaseMetaData de Oracle
StringBuffer query = new StringBuffer("select s.ID_FICHERO, s.nu_usuario,s.co_proveedor, s.de_proveedor,s.fe_emision,s.fe_entrega ");
query.append("from go_surtidos s,go_ficheros t ");
query.append("where ( ");
query.append("t.id_fichero = s.id_fichero and ");
query.append("t.tp_fichero = ? ");
query.append("AND s.NU_USUARIO in ( ? , ? , ? , ? , ? , ? , ? ,? ) ");
query.append("AND ( ? >= ? AND ? <= ?)");
query.append(")");
PreparedStatement pstmt = conn.prepareStatement(query.toString());
pstmt.setString(1, "PRICAT");
pstmt.setString(2, "");
pstmt.setString(3, "");
pstmt.setString(4, "");
pstmt.setString(5, "EN PROCESO");
pstmt.setString(6, "");
pstmt.setString(7, "");
pstmt.setString(8, "");
pstmt.setString(9, "");
pstmt.setString(10, "s.fe_entrega");
pstmt.setDate(11, dInicial);
pstmt.setString(12, "s.fe_entrega");
pstmt.setDate(13, dFinal);
ResultSet rs = pstmt.executeQuery();
System.out.println("antes next");
while(rs.next()){
String primeraColumna = rs.getString("ID_FICHERO");
System.out.println("en el next");
System.out.println(primeraColumna);
System.out.println("tras next");
rs.close();
conn.close();
catch (Exception ex){
System.out.println(ex);
ex.printStackTrace();
conn.close();
finally {
// Cierra la conexion con la BD
conn.close();
}