Why Oracle9i statement can not add " ; " in java ?

Question

Hi,
I have a following java programme:
import java.sql.*;
public class Result1 {
public static void main(String args[]) {
Connection con = null;
try {
     Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
System.out.println("JDBC driver loaded");
con = DriverManager.getConnection
("jdbc:oracle:oci:@xxxxxx","xxx","xxx");
System.out.println("Database connection established");
ResultSet rs=null;
String user_id1="user101";
String queryString = ("SELECT * FROM fixed_asset;");
PreparedStatement stmt = con.prepareStatement(queryString);
rs = stmt.executeQuery();
while (rs.next()) {
String s2 = rs.getString("db_id");
System.out.println(s2);
catch (ClassNotFoundException cnfe) {
System.out.println("ClassNotFoundException: Could not locate driver");
} catch (SQLException cnfe) {
System.out.println("SQLException: Could not connect to database");
} catch (Exception e) {
System.out.println
("An unknown error occurred while connecting to database");
} finally {
try {
if (con != null) {
con.close();
} catch(SQLException sqle) {
System.out.println("Unable to close database connection.");
This prog can be compiled, but when it run it show can't not connect to database.
But when i remove the ; in the queryString such that
String queryString = ("SELECT * FROM fixed_asset");
It can complete show the result i want .
Why it can not support ";" and how can i add two execute statements at the same time?
Thx ,
Ricky

Answer 1

When you include the semicolon, the error is generated when you execute the statement and probably indicates an invalid character error. Your error handler is assuming that any SQLException indicates that the program was unable to connect to the database, which is an incorrect assumption. Including a semicolon in a standalone SQL statement is invalid syntax.
In Oracle, you cannot pass a semicolon separated list of SQL statements to the database to be processed. If the statements are related, however, you can use an anonymous PL/SQL block to achieve the same result, i.e.
BEGIN
  <<statement 1>>;
  <<statement 2>>;
  <<statement 3>>;
END;Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC