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Thread: unable to execute prepared statement

  1. #1
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    Default unable to execute prepared statement

    my code
    package jdbcstatements;
    import java.io.BufferedReader;
    import java.io.InputStreamReader;
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.PreparedStatement;
     
     
    import java.sql.SQLException;
     
     
     
     
     
    public class Insertion {
     
     
     
    	public static void main(String[] args) throws SQLException {
     
    		try {   
    	      Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
    	      String url="jdbc:oracle:thin:@localhost:1521:orcl";
     
    	    Connection  con=DriverManager.getConnection(   url,   "scott", "tiger");
    	      System.out.println("connection created");	 
     
     
    try{
     
    	          String sql = "INSERT EMP VALUES(?)";
    	          PreparedStatement prest = con.prepareStatement(sql);
    	          BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
    	          System.out.println("Enter employee name:");
    	          String ename = bf.readLine();
    	          prest.setString(2,ename);
    	          System.out.println("Enter salaryof employee:");
    	          int sal = Integer.parseInt(bf.readLine());
    	          prest.setInt(2, sal);
    	          int count = prest.executeUpdate();
    	          System.out.println(count + "row(s) affected");
    	          con.close();
    	        }
    	        catch (SQLException s){
    	          System.out.println("SQL statement is not executed!");
    	        }
    	      }
    	catch (Exception e){
    	      e.printStackTrace();
    	    }
     
     
     
    	}
    }

    error

    connection created
    Enter movie name:
    xxxx
    SQL statement is not executed!
    Last edited by copeg; November 11th, 2010 at 07:26 PM.


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: unable to execute prepared statement

    Why swallow all the exception information....
    catch (SQLException s){
    s.printStrackTrace();//print the stack trace - this is important information
    System.out.println("SQL statement is not executed!");
    }
    What does the exception say?
    And finally, please use the code tags. It makes your code that much more readable.

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