For every database exists one database adapter which can be used like follows:

 

GLAOracleDataAdapter dbOracle = null;

 

try {

  dbOracle = new GLAOracleDataAdapter("oracle.company.at", "1521", "db_name", "db_username", "db_password");

  con = dbOracle.getConnection();

  pstmt = con.prepareStatement("select attribut from table where (attribut2 = ?)");

  pstmtpstmtSub.setString(1, "WertName");

  rs = pstmt.executeQuery();

  while (rs.next()) {

    System.out.println(rs.getString(1));

  }

} catch (SQLException ex) {

  GLAException.print(ex);

} finally {

  if (rs != null) {

    try {

      rs.close();

      rs = null;

    } catch (Exception ex_nothing) {}

  }

  if (pstmt != null) {

    try {

      pstmt.close();

      pstmt = null;

    } catch (Exception ex_nothing) {}

  }

  if (con != null) {

    try {

      con.close();

      con = null;

    } catch (Exception ex_nothing) {}

  }

}