Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

URGENT!!!-Sql statement

Posted on 2003-12-11
5
249 Views
Last Modified: 2010-04-01
i need to have a sql statement like thiw:

String Query = "delete FROM userskills where username='"+vol.getUsername()+"' "and skill='"+request.getParameter("id")+"'";
  but i get error, i think the way i right sql statement not so ok.

thanks
0
Comment
Question by:Jasbir21
  • 4
5 Comments
 
LVL 35

Expert Comment

by:TimYates
ID: 9919920
String Query = "delete FROM userskills where username='"+vol.getUsername()+"' and skill='"+request.getParameter("id")+"'";
0
 
LVL 35

Accepted Solution

by:
TimYates earned 65 total points
ID: 9919939
better is:

PreparedStatement stmt = conn.prepareStatement( "delete FROM userskills where username=? and skill=?" ) ;
stmt.setString( 1, vol.getUsername() ) ;
stmt.setString( 2, request.getParameter( "id" ) ) ;
stmt.executeUpdate() ;

(don't forget to close your statement)

This way, you can't have problems with "SQL injection"

0
 
LVL 35

Expert Comment

by:TimYates
ID: 9919945
0
 

Author Comment

by:Jasbir21
ID: 9919993
thank you very much.

0
 
LVL 35

Expert Comment

by:TimYates
ID: 9920036
:-)
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Export JSON response data to Excel in IE9 3 81
constructor overloading 2 86
own marker interface 1 57
maven disable workspace resolution 1 21
Some of the SEO trends we might expect in 2017.
The advancement in technology has been a great source of betterment and empowerment for the human race, Nevertheless, this is not to say that technology doesn’t have any problems. We are bombarded with constant distractions, whether as an overload o…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question