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raghavendra
resultset problem
1 Answer(s)      6 years and 10 months ago
Posted in : JSP-Servlet
hi
I have one problem with resultset?
ResultSet rs=st.execute("select subjname,staffname from staffdetails");
while(rs.next())
{
st.executeUpdate("update CSEFIRSTYEARTIMETABLE set p2='"+rs.getString(1)+"',p3='"+rs.getString(1)+"',p4='"+rs.getString(1)+"' where dayperiod='2'");

}

the above update query is executed once not repeatedly error is
java.sql.SQLException: Operation not allowed after ResultSet closed
how to repeat the update query upto the wile condition is true?

pls send me answer?

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June 22, 2010 at 12:02 PM


Hi Friend,

We are providing you a sample code. It will be helpful for you.

import java.sql.*;
class Select{
public static void main(String[] args){
try{
Class.forName("com.mysql.jdbc.Driver");
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/register";, "root", "root");
Statement st=connection.createStatement();
Statement st1=connection.createStatement();
ResultSet rs=st.executeQuery("select * from data");
int i=1;
while(rs.next()){
System.out.println(rs.getString(2)+" "+rs.getString(3));
st1.executeUpdate("update person set name='"+rs.getString(2)+"',address='"+rs.getString(3)+"' where id='"+i+"'");
i++;
}
}
catch(Exception e){}
}
}

Thanks









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