Thread: problem in using DatabaseMetaData getColumns()

hello

i am getting error while using uisng
dmd.getColumns(null,null,MY_TABLE_NAME,null);
i am gtting error while using the new pgjdbc2.jar
driver with the old driver postgresql.jar this method
is working .can you help me in solving this problem.
i am sending a sample code


import java.sql.DatabaseMetaData;
import java.sql.SQLException;
import java.sql.ResultSet;

class CheckDB
{
public static void main(String args[])throws
Exception{

String MY_TABLE_NAME="computers";
Connection con;

    try
    {

        Class.forName("org.postgresql.Driver");
        con =
DriverManager.getConnection(jdbc:postgresql://localhost/mytab,loginname,password);

        DatabaseMetaData dmd = con.getMetaData();
        String[] tableType = {"TABLE"};

        ResultSet rs = dmd.getTables(null, null, null,
tableType);

        while ( rs.next() )
        {
            if(MY_TABLE_NAME.equals(rs.getString( "TABLE_NAME"
)))
                System.out.println(MY_TABLE_NAME +" found in
database " ) ;
        }
        rs.close();

        rs = dmd.getColumns(null,null,MY_TABLE_NAME,null);
        // when i try to use
getColumns(null,null,MY_TABLE_NAME,null); method
        // i am getting exception :ERROR:  parser: parse
error at or near "("
        // i am gtting this error while using the new
pgjdbc2.jar Driver
        // with the old driver postgresql.jar this method is
working

        while(rs.next())
        {
         colNames[totalFields]=rs.getString( "COLUMN_NAME"
);//here COLUMN_NAME is a key word
         System.out.println("COLUMN_NAME : " +
colNames[totalFields]);
        }
        rs.close();

    }
    catch(SQLException e)
    {
        System.out.println("here i am :"+e.getMessage());

    }
   }
}


=====

would you like to help someone see the beauty of the world through your eyes long after you have gone
http://www.ebai.org

Arun VC, E Team India Web Solutions,
Serene,Anupama Nagar,Pongummoodu,Trivandrum
Phone Off: +91 471 558089. Res : +91 471 343954.
http://www.e-zenit.it
http://www.geocities.com/vcarun


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The latest code should work, can you build from cvs?

dave
On Mon, 2002-09-02 at 10:49, arun vc wrote:
> hello
>
> i am getting error while using uisng
> dmd.getColumns(null,null,MY_TABLE_NAME,null);
> i am gtting error while using the new pgjdbc2.jar
> driver with the old driver postgresql.jar this method
> is working .can you help me in solving this problem.
> i am sending a sample code
>
>
> import java.sql.DatabaseMetaData;
> import java.sql.SQLException;
> import java.sql.ResultSet;
>
> class CheckDB
> {
> public static void main(String args[])throws
> Exception{
>
> String MY_TABLE_NAME="computers";
> Connection con;
>
>     try
>     {
>
>         Class.forName("org.postgresql.Driver");
>         con =
> DriverManager.getConnection(jdbc:postgresql://localhost/mytab,loginname,password);
>
>         DatabaseMetaData dmd = con.getMetaData();
>         String[] tableType = {"TABLE"};
>
>         ResultSet rs = dmd.getTables(null, null, null,
> tableType);
>
>         while ( rs.next() )
>         {
>             if(MY_TABLE_NAME.equals(rs.getString( "TABLE_NAME"
> )))
>                 System.out.println(MY_TABLE_NAME +" found in
> database " ) ;
>         }
>         rs.close();
>
>         rs = dmd.getColumns(null,null,MY_TABLE_NAME,null);
>         // when i try to use
> getColumns(null,null,MY_TABLE_NAME,null); method
>         // i am getting exception :ERROR:  parser: parse
> error at or near "("
>         // i am gtting this error while using the new
> pgjdbc2.jar Driver
>         // with the old driver postgresql.jar this method is
> working
>
>         while(rs.next())
>         {
>          colNames[totalFields]=rs.getString( "COLUMN_NAME"
> );//here COLUMN_NAME is a key word
>          System.out.println("COLUMN_NAME : " +
> colNames[totalFields]);
>         }
>         rs.close();
>
>     }
>     catch(SQLException e)
>     {
>         System.out.println("here i am :"+e.getMessage());
>
>     }
>    }
> }
>
>
> =====
>
> would you like to help someone see the beauty of the world through your eyes long after you have gone
http://www.ebai.org
>
> Arun VC, E Team India Web Solutions,
> Serene,Anupama Nagar,Pongummoodu,Trivandrum
> Phone Off: +91 471 558089. Res : +91 471 343954.
> http://www.e-zenit.it
> http://www.geocities.com/vcarun
>
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Finance - Get real-time stock quotes
> http://finance.yahoo.com
>
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