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

All possible combinations of String in PL/SQL
Hi All,

Could you please explain the logic of getting all possible combinations of String

Just cannot get 'area' to submit to db using same php code as already used
Basically all i have done is just modified some code and added an area section.
The form is allre

Echo multiple lines of html code
Hi guys,

I would like to know if there is a way to echo multiple lines of html codes.

Converting RGB values to HEX
Code: <?PHP

$file_handle = fopen("colors/rgb.csv", "r");

wh

Values disappear from my array :( HELP!
hey all, I have a lil mysql/php/apache script that queries a database
and pulls put 5 integers.

Escaped characters
I have a script that allows you to post news to the home page of my site. Along with the news is the

Alterar a hora do servidor
Se alguém souber, ajude-me a adicionar 6 horas, obrigado
<tr>
&

$action = "insert"; //$action = $_GET['action'];
$action = "insert";
//$action = $_GET['action'];

why is this invalid type? I am

first id from db not showing
I have a php script which displays the content of a mysql table as a html table with sorting, delete

Snapshot from video
anyone knw how to make a snapshot maker from avi n mkv format.
for example if i give a direct lin

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