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

if name exists, do something

Your Answer:

Login to answer

Other forums

Last Weeks sDate and eDate.
sDate - Start Date
eDate - End Date

I need to pull two dates for "Last Week" whi

This is driving me nuts!
This insert query looks to be alright, however I get this error:

QuoteYou have an error in yo

MII Netweaver Server stopped due to CPIC connection Problem
Dear Experts,
We have SAP XMII 12.0 setup running on Netweaver 2004s,7.0, Java Stack only.

get url?
how do i get the url of the page i'm currently on, on my website.. i think its get header.. how do i

remove innitial

and

tags
i am using tiny_mce as a text editor for my CMS.
buy now the problem is it add <p>

Display Database
I need to create a shopping cart. I found this code online: http://conceptlogic.com/jcart/
Unfort

I apologise! It's a newbie to PHP feedback form problem!
Hi,

I am a total newbie to PHP. I am also a unemployed and need to get a job. So after 100% r

Ten Operator Syntax
Hi Guys,

I can't figure out why i am getting a parse error with this basic ten op code:

RadioButtonList data selection
view plaincopy to clipboardprint?

$GPRMC and NMEA how to extract from report
Hi There,

Im a little bi lost and not sure where to start with this one, ive got a small gps