Getting java sql SQLException Operation not allowed after ResultSet closed

0 votes

The following code throws an exception when I run it. Because I'm preparing a new statement with the same connection object, I believe that is the problem. How should I change this so that I can use RS2 AND make a prepared statement? Even though the connection is to the same database, do I still need to construct a new connection object?

    try 
    {
        //Get some stuff
        String name = "";
        String sql = "SELECT `name` FROM `user` WHERE `id` = " + userId + " LIMIT 1;";
        ResultSet rs = statement.executeQuery(sql);
        if(rs.next())
        {
            name = rs.getString("name");
        }

        String sql2 = "SELECT `id` FROM  `profiles` WHERE `id` =" + profId + ";";
        ResultSet rs2 = statement.executeQuery(sql2);
        String updateSql = "INSERT INTO `blah`............"; 
        PreparedStatement pst = (PreparedStatement)connection.prepareStatement(updateSql);    

        while(rs2.next()) 
        { 
            int id = rs2.getInt("id");
            int stuff = getStuff(id);

            pst.setInt(1, stuff);
            pst.addBatch();

        }

        pst.executeBatch();

    } 
    catch (Exception e) 
    {
        e.printStackTrace();
    }

private int getStuff(int id)
{

    try
    {   

            String sql = "SELECT ......;";
            ResultSet rs = statement.executeQuery(sql);

            if(rs.next())
            {
                return rs.getInt("something");

            }
            return -1;
    }//code continues

Can someone please help me with this?

Aug 22, 2022 in Database by Kithuzzz
• 38,010 points
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