check if value exists


Posted on 16th Feb 2014 07:03 pm by admin

I have googled this for a while and I am getting lots of different results. Is there a standard method used for checking to see if a value exists in a database before inserting a value? I have a form, you type your name and push submit, it inserts the name into the database and then the name shows up in a list. Right now, it accepts the same values. I want to add a check to say

Did you know?Explore Trending and Topic pages for more stories like this.
if name exists, do something
No comments posted yet

Your Answer:

Login to answer
337 Like 35 Dislike
Previous forums Next forums
Other forums

True way to see if action was successful?
If this is a good way to see if action was successful to continue:

Code: function changeGa

simple ping code
been searchin the site/web and found code thats simple but doesnt work.

I have a personal we

Restricted access to sub-folder in iis6 doesn't work?
Basically I'm trying to add restriction to sub-folder (which contains pdf) in web.config for iis6 as

PHP error (line 38) my website
Hello everyone, I'm new on this
and I got a web site thats got a error not showing the photos on<

weird problem
last time, i did post a topic concerning why my page sometime will load as blank page when using IE.

cstdatomic (c++0x std::atomic) / g++ 4.4
Hello,

I'm trying to use cstdatomic (std::atomic in the upcoming c++0x standard) in g++

import table with dependency
Hi

What is the best way to import table back which has dependency?

SQL> cre

PHP Script runs on CLI but not through web browser
I am running into an issue that I just can't seem to find the answer to. I have a Windows Server 200

Object Interfaces
EDIT: Never mind, I just updated to php 5.

Hey all,

I'm currently experimenting with p

Undefined index: username HELP NEWBIE
I am trying a simple login/logout for my website. It works well with checking if the username exists

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash