Lookup jdbc in graphical mapping

Question

Hi,
i am struggling in testing lookup in User-Defined function. I have a good result of testing JCO using in User-Defined function, but when i executed in using JDBC, i got no error, however, no result turn on, just empty,
i am wondering if i use java.sql.* on imports line or not and wondering if url and driver should be used in User-Defined Function.
anyway, what i want to do, while mapping, i would like to get data from MSSQL DB in using User-Defined Function.
if you have a good solution instedad of this in order to do, please let me know
User-Defined Function
Description
Imports     java.sql.*;
public String UOMLookupJDBC(String a,Container container){
   //write your code here
String url = "jdbc:microsoft:sqlserver://10.100.100.1:1433;DatabaseName=TESTDB";
String user = "TESTUSER";
String pass = "TESTPASS";
Connection con = null;
Statement stmt = null;
ResultSet rset = null;
String driver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
String expStr = "";
String sql = "";
try{
Class.forName( driver );
con = DriverManager.getConnection(url, user, pass );
stmt = con.createStatement();
sql = "SELECT CODE FROM Material03 WHERE MEINS = '"+ a +"'";
rset = stmt.executeQuery ( sql );
while(rset.next()){
  expStr = rset.getString(1);
if(rset != null)
rset.close();
if(stmt != null )
stmt.close();
if(con != null )
con.close();
}catch(Exception e) {
e.getMessage();
e.printStackTrace();
return expStr;
Thanks
venjamin(YD)

Answer 1

MappingLookupAPI is the answer to your question.
Refer
http://help.sap.com/saphelp_nw2004s/helpdata/en/cf/406642ea59c753e10000000a1550b0/frameset.htm
and the blog link specified by Vijaya for more details.
Regards,
Amol