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SQL command doesn't display anthing ?????

Posted on 2002-04-09
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175 Views
Last Modified: 2010-03-31
what is wrong with the sql command it doesn't display anithing
although it access the first sql and goes write
i'm geting the month and year from an html page as a text
but i defined them in access database as numbers .
is this the problem and how to solve it ,
any suggestions

===============================================
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;

public class Startdate1 extends HttpServlet {
  public void doPost(HttpServletRequest req, HttpServletResponse res)
                                     throws ServletException, IOException {
 
         Connection con = null;          
         boolean logged = false;
         res.setContentType("text/html");
         PrintWriter out=res.getWriter();
         out.println("<HTML>");
         out.println("<HEAD><TITLE>Employee PaySlip</TITLE></HEAD>");
         out.println("<BODY BGCOLOR=\"#FFFFF\">");
         out.println("<CENTER>");
         out.println("<BR><BR>");
       try {
       
            String strSQL,strSQL1, userid,password;
            ResultSet rs=null, rs1=null;
            Statement stmt;
            int i=0,allowence=0;
            String month;
            String year;
               
            Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
            con = DriverManager.getConnection("jdbc:odbc:db1");
            stmt = con.createStatement();
               
               userid = req.getParameter("userid");
            password = req.getParameter("password");
            month = req.getParameter(month);
               year = req.getParameter(year);
               
               strSQL = "select * from LoginTable " +
               "where EmpID like '" + userid + "' and " +
               "Password like '" + password + "'";
            rs = stmt.executeQuery(strSQL);
               
           
                if (rs.next())                                                      
             {
                     logged=true;
                     out.println("LOGGED");
                     rs.close();
                }
                else
                {
                     logged =false;
                     out.println("not logged");
                     rs.close();
                }
                if (logged)
                {      
                     out.println("LOGGED2");
                strSQL1="SELECT AMOUNT FROM ALLDED WHERE EFFECTIVEDATE LIKE '"+month+"/"+"%"+"/"+year+"'"+"AND EMPNO ="+userid+"AND FLAG = 'A'";
             rs1 = stmt.executeQuery(strSQL1);
             out.println("LOGGED3");
               while(rs1.next())
               {
                    out.println("<TR>");                                                              
            out.println("<TD>" + rs.getString("AMOUNT") + "</TD>");
                out.println("</TR>");
                out.println("LOGGED4");
                }
                }
                else
                {
                    out.println("Please Check your id and password");
                }    
                  rs1.close();
               stmt.close();

       } catch (Exception e)
         {
           e.printStackTrace();
       }
         finally
         {
            if (con != null)
               {
                 try
                     {
                      con.close();
                 } catch (SQLException se) {
                      se.printStackTrace(System.err);
                 }
            }
       }
       out.println("</CENTER>");                                                
       out.println("</BODY>");                                                  
       out.println("</HTML>");  
  }    

}
0
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Question by:star5
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9 Comments
 

Expert Comment

by:lazeknight
ID: 6929457
strSQL1="SELECT AMOUNT FROM ALLDED WHERE EFFECTIVEDATE LIKE '"+month+"/"+"%"+"/"+year+"'"+"AND
EMPNO ="+userid+"AND FLAG = 'A'";

--------------------------------------------------
Your EFFECTIVEDATE in Access has to be of type Date and your input should be something like = "'"+month+"/"+day+"/"+year"'"

0
 
LVL 92

Expert Comment

by:objects
ID: 6929662
I'm not sure if the database will support that type of query.  Have you tried executing the query directly, ie not from Java?
0
 

Author Comment

by:star5
ID: 6930460
the first part worked well

strSQL1="SELECT AMOUNT FROM ALLDED WHERE EFFECTIVEDATE LIKE '"+month+"/"+"%"+"/"+year+"'"

but when adding the second part doesn't work!!

strSQL1="SELECT AMOUNT FROM ALLDED WHERE EFFECTIVEDATE LIKE '"+month+"/"+"%"+"/"+year+"'"+"AND
EMPNO ="+userid+"AND FLAG = 'A'";


i tried in oracle and it work :
i wrote like that :

SELECT AMOUNT FROM ALLDED WHERE EFFECTIVEDATE LIKE '9/1/2001' AND
EMPNO =1000 AND FLAG = 'A';

whats the problem in java ??

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LVL 92

Expert Comment

by:objects
ID: 6930476
What you tried in Oracle is not the same as what you tried in Java, it does not use any wildcarding. Did you try with the wildcard in Oracle?
0
 

Author Comment

by:star5
ID: 6930606
i found the solution :
do like that :

strSQL1="select amount,grade from allded where EMPNO like '"+userid+"'"+" AND FLAG like 'A'"+" and effectivedate like '"+mont+"/"+"%"+"/"+yea+"'";
0
 
LVL 4

Expert Comment

by:pellep
ID: 6930847
I seem to recall that you have to put the 'LIKE' clauses at the end.

strSQL1="SELECT AMOUNT FROM ALLDED WHERE EMPNO ="+userid+" AND FLAG = 'A' AND EFFECTIVEDATE LIKE '"+month+"/"+"%"+"/"+year+"'";
0
 

Accepted Solution

by:
sonthosh earned 9 total points
ID: 6933073
Hope this answers ur query ..


strSQL1="SELECT AMOUNT FROM ALLDED
WHERE
EFFECTIVEDATE LIKE '"+month+"/"+"%"+"/"+year+"'"+" AND EMPNO ="+userid+"AND FLAG = 'A'";

I have tried it oracle. I am not wrong try print the query console u may find some problem in the query like  query framed in java using string might not be correct.




0
 
LVL 92

Expert Comment

by:objects
ID: 6933083
i thought he'd already found a solution.
0
 
LVL 1

Expert Comment

by:Moondancer
ID: 6956463
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