Does anyone know how to code in a very simple random number generator?
Basically, my ASP site is linked to an SQL d/base. What I want to do is have a "Random quote of the day"... the R.N.G. should spit out a number, and that number references the random_quote_ID in the d/base and spits it out.
We have the need to have a random token (a 16 char alphanumeric field) to be used as the key for one of our SQL tables. I have created a random token generator, however after only 3 months in production, it appears that we had an instance where a token that already existed in the tables was created. There are 3810 records currently in the database so it isn't like there are billions of records there.
I contacted an old college buddy of mine who is a mathematician, and he claims, assuming that random really does mean random, that the chances of getting a duplicate token are 1 in 79.5 septillion (79,500,000,000,000,000,000,000,000).
So my conclusion is that this was either a complete freak of nature occurance, or my random generator isn't really all that random. Here is the code behind how I am generating this: Code:
So we use the Randomize function and Rnd to make a random number. Well my numbers can hardly be called random. So I have to ask is those two functions dependent on the web server? The web server sucks so much that it cant generate new Random numbers?
How Random is this?
Game1
2006-05-14 20:01:32 You picked a 4 of Clubs
2006-05-14 20:01:34 You picked a 4 of Clubs
2006-05-14 20:01:35 You picked a 2 of Diamonds
2006-05-14 20:01:37 You picked a 2 of Diamonds
2006-05-14 20:01:38 You picked a 2 of Diamonds
And then I added a Session function which takes the Number generated and make sure that it doesnt happen twice in a Row. But then it just switches between two values.
Game2
2006-08-09 13:55:12 You got hit by 11276
2006-08-09 13:55:16 You recieved 88515m³ Ice.
2006-08-09 13:55:21 You got hit by 11276
2006-08-09 13:55:30 You recieved 88515m³ Ice.
2006-08-09 13:55:37 You got hit by 11276
2006-08-09 13:55:39 You recieved 88515m³ Ice.
If I had'nt had the Session function it would simply be "2006-08-09 13:55:12 You got hit by 11276" 4 times in a row or something.
So I ask myself what is wrong? Is it the server or is it faulty programming on my side?
iOre = Int(30000 * Rnd + 5000)
If IsEmpty(Session("OreRandom")) = False then
DO WHILE Session("OreRandom") = iOre
Randomize
iOre = Int(30000 * Rnd + 5000)
LOOP
End If
Session("OreRandom") = iOre
I think most of you have run into the problem of generating random cards (shuffling them) in almost every programming language. If not here is your chance .Now I want to try this in ASP. Ya ya I know WHY ASP...because I want a challenge and want to see how you people would think of doing it.
---------------------------
Rules To Develope:
---------------------------
- 40 cards
- 4 different suits
- each suit 10 cards with number 10,9,8,7,6,5,4,3,2,1
All it has to do is generate an ASP page listed with the randomly generated cards.
I have the following function which generates random strings:
function GenerateRandomStr(nLen, skipRandomize)
dim i, strTmp
if not skipRandomize then Randomize
strTmp = vbNullString
for i = 1 to nLen
strTmp = strTmp + Chr(fix(26 * Rnd) + 65)
next
GenerateRandomStr = strTmp
end function
But it is so happening that it is generating duplicate string which is causing the system to fail. Can anyone tell me why it is behaving in that way??
How bout I go about creating a section on my site that displays a random image, lets say:
1) every time the page is refreshed
2) in a certain amount of mins or hrs the pic changes
3) daily, monthly and so on?
Would I need a database of some sort or can it just be done with some asp code?
i am developing an e-move system. basically, this system required a customer to login first into the system before make any reservation. when a customer complete fill up a form with required data such as name, address, telephone number, email, date and time, i was wondering to give the customer a specific number as a reference number. customer will use this number to retrieve back the information if he has any changes to make and also to view the propose quotation from the mover company. my problem is, how can i include that particular process (reference number) into my e-move system?is there any auto number generator code/application?
View Replies View RelatedI am trying to generate a random number. I am using randomize and then rnd to return a decimal number between 100 and 120. This will give me a longitude. I am doing something similar to generate a latitude.
I created this on a page which refreshs every minute. I put these points into a map and they are showing up in groups of straight lines. Since rnd is time based will refreshing every 60 seconds return similar numbers?
trying to get a random number from 0000 to 9999, is there an easy way to do this? i'm using this for a unique filename and want it to be 4 digits from 0000 to 9999.
View Replies View Relatedx = ROUND((0.9+1.005*RND()-0.4),1)
y = INT(y * x)
This is what I'm trying to acheive:
- "Y" has a preset value between 1-100
- "X" should be random between 0.8 and 1.2
- "X * Y" is the final value of "Y" as a whole number
What I'm struggling with is getting the value of X to be random between 0.8 and 1.2....
How would you go changing a random number generated into a item drawn from a database with SQL....
View Replies View RelatedI need to create a random number, or even better, and random combination of letters and numbers, to be used as a type of security key for changing a user's password on this site i'm working on. Basically, the user fills out this form which sends them and e-mail w/ instructions on how to change their password (pretty basic, lots of sites do it).
In the e-mail of course is a link which links to a page with querystring values that include their customer number, the action (reset password), and hopefully this "key." What I'd like to do is have the key written to a database when the e-mail is sent and then deleted when the password is changed. So, how can I generate this key. I think I can take care of the writing to/deleting from the database.
I'm trying to create a random number that has to solid letters at the beginning followed by 8 random numbers (DN13523781) This number also can't be in use alreaddy which means it can't alreaddy be in a colum called number in the database.
I can do the letters followed by one number, but I can't figure out how to get 8 numbers in a row without getting the same ones over and over(88888888)
I also don't know how to check if it's alreaddy used in the database.
Also does someone know how I can prevent the same number from being produced before it can be added to the database at an other location/pc.
I'm building an online store and I want to give people an order number when they order something. Code:
Does anyone know of any parameters for either of these functions?
Say, if I wanted only numbers between 1 and 100?
Code:
<%
randomize()
response.write(rnd())
%>
How can I generate a unique random number?
View Replies View RelatedI've got a realy wierd server problem - everytime i ask for a random number using rnd() i get 0.7055475. This problem just appeared the other day. I hadnt changed any server or os settings, however i have recently recieved a 6 part xp pro update... - has anybody come accross this before?
View Replies View RelatedI want to display a random banner from a selection of 5 banners. So if number = 1 then display baner 1 etc. My code is as follows:
bannerCount = bannerRecordSet.RecordCount
Dim bannerSelected
Randomize
bannerSelected = Int(Rnd * bannerCount)
The above code works although it never seems to generate the value 1, ie 2-5. Also when I refresh the page sometimes a random banner is displayed and other times I get an error. Is this because I am generating a value outside 1-5? Code:
I have this simple application that I put together using ASP. It has an html form that submits to an access database through a simple ASP file. It’s a survey form basically. One of the departments here wants to get some feedback from their students and in return for filling out the survey they will be entered into a drawing for a gift certificate. The catch is that the survey is anonymous. What they want to happen is each person is given a unique number at the end of the survey and they will pick one of those numbers randomly to see who the winner is. How can I possibly do this? I am stuck.
I think I may know what I need to do:
Pull a unique number from a database and post it onto the HTML form near the submit button. Notate on the page that the user write the number down and when they hit submit it is inserted into the database along with the record. I have absolutely no idea how to do that.
The HTML form submits into the database using this "add.asp" file:
Code: ....
I've tried using javascript to rotate an image upon reload, but I can't get it working, so now I'm trying it with asp. I don't understand why this won't work. Any ideas? Code:
View Replies View RelatedI want to create a random number where it concatenates with the "day counter" as explained below and name of the person inorder to generate a unique id.
by day counter i mean. there are 365 days in a year and today is the 18th day of the yeat. so the counter generated shud be 18&Smilesmita. How do i do this in ASP ?
I know this is not a php forum, but i've been given a task to create a form that requires a unique number every time the form is loaded. The form has been created but they have php on their site. windows would be in 3 weeks time but they want the form asap. The field is a hidden field since i've never looked at a php code page b4 i need some help.
View Replies View RelatedI have used:
set typ = server.createobject("Scriptlet.TypeLib")
to create a random string of 36 characters. However, is there a way to
create a random string of digits in the length I request? Perhaps a string
of 20 digits with a few asterisks thrown in for ease of typing?
for example:
4515-81301-75454-45136-1
Would this be reated with RegExp? And how?
not after code, just thoughts, suppose i'm generating a random 8-digit pin number for our clients, first i'll be checking against the db to see if it already exists before assigning it. what i might do for that is getstring all of the exsiting pins at the top of the script and just keep performing an instr until i get a 0. (i dont expect to ever go above a thousand clients for this system and hopefully my initial number will be random enough that these checks are for backup/redundancy assertion anyway)
but anyway, the main problem is: i dont want to generate a random pin that is one (or maybe two) digit(s) different from another,. i.e.
11111111 is too close to 14115111 and much too close to 11111811. 11121111 is right out of the question as it can be entered as a typo, as is 11111411 because of the numpad
so i'm after thoughts on how to perform that check, i suppose if i went with the "big string of all pins that went before" check i could perform a number of regex searches on the string. i.e.
my pin is 12345678 and i dont want ony to be one digit different so i'd check the string against .2345678 1.345678 12.45678 and so on. think i just answered my own question, anyone else got any ideas? especially for the two digit case (dont want to be performing 36 regex checks do i!)
I'm getting ready to start design on a random name generator. Basically a user would type in their first and last name and it would generate a random name pulling from a database. My question is this, what would be the best way to pull the random name? I was thinking of maybe just grabbing say the third letter of the first and last name and then matching them to a name, but I thought this would create to many duplicates. Maybe somebody out there can point me in the right direction.
View Replies View Relatedtell a good software that i can be using to generate my asp codes apart from code charge studio.
View Replies View RelatedCode:
The biggest n00b benefit I can see from Ruby on Rails, .NET, CakePHP or any framework/code generator is it's ability to auto create DAL and CRUD statments in a object oriented format.
Helping a friend to create a site in ASP, he has a bit of ASP knowledge and I have none at all We are looking add being able to add the abilitly to create new forms on his new website. Does anybody know of a good ASP form generator?
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Exactly like this, but in asp or cold fusion:
http://www.tupics.com/freead/create.pl
I am a web programmer and I have recently been involved in developing my first ASP.NET application written in C#. I am looking for a code generator to help me to implement the skeleton of the application.
I tried to search on the Internet and found a few, but none of them generate the stored procedures, the data access layer and the business layer. Can someone suggest me a good and bug-free code generator so I can focus on implementing the business rules rather than writing stored procedures and developing logic to load and save the data?
Does anyone know of any decent ASP code generators.I would like a program that automatically builds all the code for searches, reports, etc, giving just the path to a Microsoft Access MDB file. I have tried and used aspmaker, and it works pretty good. I was just wondering if there are any other programs out there that anyone recommends. Also does anyone know of any other "GOOD" asp forums besides this one
View Replies View Relatedi'm looking for a free image gallery generator in ASP 3 on ASP+. I've already looked on sourceforge.net but no one seems to fit my needs which include:
- admin area to create/destroy galleries,
- upload/remove images,
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I design auction templates and I need a way for my buyers to be able to fill out a form, click submit, and have a preview of the HTML template come up as well as the HTML coding so they can copy & paste it into their auction listing. Does that make sense?
I have NO experience with ASP programs but I was told by someone that this is what I need to get the results I am looking for. I do very well learning things on my own but this one has stumped me. I've spent many hours looking for any kind of tutorial or program that I could purchase.
However, what I want to do is include a request.querystring("ID"), so that IF an ID is defined, eg ID=3, , it will display the relevant (not random) information. I've tried this every way I can think and get type mismatches, etc etc. It's probably really simple but I can't see it.
<%
limit=3
redim link(limit)
redim image (limit)
link(1)="xxx"
image(1)="image1.jpg"
link(2)="xxx"
image(2)="image2.jpg"
link(3)="xxx"
image(3)="image3.jpg"
randomize
random=int(rnd*limit)+1
%>
<center>
<a href="<%= link(random) %>">
<img src="<%= image(random) %>" border="0"></a>