ResultSet

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madem sravani

ResultSet
0 Answer(s) a year and 3 months ago
Posted in : JDBC

I want to retrieve data of unknown datatype from database.how to do it using resultset or Resultsetmetadata.Can you please tell me what to write in the dashes specified.

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>SQL</title>
    </head>
    <body>
        <%@ page import="java.sql.*" %>
        <%
                    String query = request.getParameter("query");
                    out.println(query);
                    String driver = session.getAttribute("driver").toString();
                    String url = session.getAttribute("url").toString();
                    String userid = session.getAttribute("userid").toString();
                    String pass = session.getAttribute("pass").toString();
                    //  out.println(driver+url+userid+pass);

                    try {
                        Class.forName(driver);
                        Connection con = DriverManager.getConnection(url, userid, pass);
                        Statement st = con.createStatement();
                        ResultSet rs = st.executeQuery(query);
                        ResultSetMetaData rsmd = rs.getMetaData();
                        int numColumns = rsmd.getColumnCount();
                        for (int i = 1; i < numColumns + 1; i++) {
                            String c = rsmd.getColumnName(i);
                            String c1 = rsmd.getColumnLabel(i);
                            out.println(c + "\n " + c1);

                        }
                        while (rs.next()) 
                        {
                            out.println(rs.get----------------------);
                        }

                    } catch (Exception e) {
                        out.println("error");
                    }
        %>

    </body>
</html>

View Answers

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