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Error: ResultSet was not produced – Java From 5gw.org

由[db:作者]

4月 9, 2022

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Error: ResultSet was not produced – Java
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Error: ResultSet was not produced

This is the code I’m using to isert record in SQL but it produced the "ResultSet error not produced" and even it did not inserted the mobile field, but the field is set to "not null" still it was showing null.

Expand|Select|Wrap|Line Numbers
  1. <%    
  2.         try
  3.     {
  4.             String n=request.getParameter("name");
  5.             String u=request.getParameter("uname");
  6.             String p=request.getParameter("pwd");
  7.             String y=request.getParameter("Year");
  8.             String g=request.getParameter("Gender");
  9.             String e=request.getParameter("EmailID");
  10.             String c=request.getParameter("Moblie");
  11.             String a=request.getParameter("Address");
  12.     Connection con=DriverManager.getConnection("jdbc:odbc:uinfo; uid=System; pwd=tandon");
  13.             Statement st=con.createStatement();
  14.             ResultSet rs=st.executeQuery("insert into uinfo values(‘"+n+"’,’"+u+"’,’"+p+"’,’"+y+"’,’"+g+"’,’"+e+"’,’"+c+"’,’"+a+"’);");
  15.              if(rs.next())
  16.                      {
  17.                         %> <jsp:forward page="U_Login.jsp" /> <%
  18.                      }
  19.             else
  20.                 {
  21.                 out.println("please retry");
  22.           %><br><br> <a href="http://bytes.com/SignUp.jsp">Back to Home</a> <%
  23.                    }         
  24.   con.close();
  25.  
  26.          }               
  27.         catch(Exception e)
  28.          {
  29.          out.println(e);
  30.          }
  31.         %>

May 24 ’13
#1

3 1726


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Oralloy

983
 Expert 512MB

tejasvee1234,

If I remember correctly, when the executeQuery() method works on an INSERT statement, it doesn’t produce a result set, as there are no values generated. Try using the execute() method, instead.

The first thing to do is see if your SQL is correctly formed; usually done by printing it out. Then once the SQL is correct, then you can do the insert.

Judging from your comment, though, you need to use the execute() method, and check the boolean result, instead.

Luck,
Oralloy

May 26 ’13
#2

PreethiGowri

126
 64KB

ExecuteUpdate has to be used instead of ExecuteQuery for insert, update and delete queries. Write something like,

Expand|Select|Wrap|Line Numbers
  1.  Statement st=con.createStatement();
  2.             int rs=st.executeUpdate("insert into uinfo values(‘"+n+"’,
  3. ‘"+u+"’,’"+p+"’,’"+y+"’,’"+g+"’,’"+e+"’,
  4. ‘"+c+"’,’"+a+"’);");
  5.              if(rs != 0)
  6.                      {
  7.                         %> <jsp:forward page="U_Login.jsp" /> <%
  8.                      }

May 27 ’13
#3

Oralloy

983
 Expert 512MB

PreethiGowri,

Thank you, I learned a trick. Much appreciated.

Oralloy

May 28 ’13
#4


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