php + mysql count consecutive data


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

I have a database of values and I want to work out how to display them if the values match a consecutive pattern.

For example, I might have the table "eggs" with the values "1", "2", "3", "4", "6", "7", "8", "9", "10". Now if I were to count these up I'd have 9 total values, this is good. What I want to do is ONLY count the values where they have another 2 consecutive values after them. So for example if the above pattern is what I'm using and I want to check for 2 consecutive values, the following would happen:

1 -> correct, it is followed by "2" and "3".
2 -> correct, it is followed by "3" and "4".
3 -> false, it is followed by "4" but no "5"
4 -> false, it is followed by "6", no"5".
6 -> correct, followed by "7" and "8".
7 -> correct, followed by "8" and "9".
8 -> correct, followed by "9" and "10".
9 -> false, followed by "10" but no "11".

and this would return the total of 7, because 7 of these values are followed by 2 consecutive numbers, therefore are correct.

So my question: How would I go about this? Would it be a matter of a single (albeit complex) mysql query or will I have to do some more advanced stuff after fetching the array? If it's the second I can do that myself, but I'd like to (hopefully) do it in a query!

So, any ideas?

No comments posted yet

Your Answer:

Login to answer
101 Like 14 Dislike
Previous forums Next forums
Other forums

need help in php variable
i have a php variable on one page
Code: [Select]$lastId = mysql_insert_id($db);
echo $lastId;<

Storing user data help?
Hey Guys,

I'm not use if this question is to broad but I can always give you more informatio

Web Host List
Here is a list of web hosts that offer PHP and MySQL. It is no where near a full list, but it is mos

PRotect my POST DATA... FROM HTML ATTACKS
I need to like let's say

If a user submit's his Prayer and he put's <meta refresh stuf

Stopping page post back
I have few literal contriols in my page and a repeater too. But inspite of using update panel, postb

Developing Ajax-enabled ASP.Net applications for the iPhone
I would like to develop Ajax web applications using Visual Studio that are optimized for the iPhone.

Pls help with PHP
Pls can anyone direct me on how to create a user account for a customer. For example i want know if

SAP Business Suite
Hi all:

Within the SAP Business Suite solution I would like to ask you the main differenc

Need help-Error istream header declaration
Hi Everyone ,

I am having issue with istream declaration. I am new to C programming.
can a

Timer control causing error
I recently decided to add a timer control to an existing page that uses AJAX on my site. As soon as

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