unique

Counting unique values in a column with a shell script

Hello. I have a tab delimited file with 5 columns and need to retrieve a count of just the number of unique lines from column 2. I would normally do this with Perl/Python but I am forced to use the shell for this one. I have successfully in the past used *nix uniq function piped to wc but it looks like I am going to have to use awk in h...

How do I generate a unique ID without using AUTOINCREMENT

I am exporting data from csv into mysql database, I want the database to generate a unique id for each imported record. I want to use the unique field in generating a receipt number in crystal report. What would you suggest as the best way of doing this? ...

NSArrayController that is sorted and unique (no duplicates) for use in a pop-up in a core-data app

I have core data app with an entity OBSERVATION that has as one of its attributes DEALNAME. I want to reference through Interface Builder or by making custom modifications to an NSArrayController a list of unique sorted dealnames so that I can use them in a pop-up. I have attempted to use @distinctUnionOfSets (and @distinctUnionOfArrays...

how to make the StringListProperty's value unique in google-app-engine.

the next code is error: class Thread(db.Model): members = db.StringListProperty(unique =True) thanks ...

Generate unique random alphanumeric characters that are 7 characters long

It need not be meaningful words - more like random password generation, but the catch is - they should be unique. I will be using this for some kind of package / product code. Which is the best method available? :) ...

Why Microsoft has put 2 different options for creating Unique Indexes on a table in SQL Server 2005?

Why Microsoft has put 2 different options for creating Unique Indexes on a table in SQL Server 2008? Manage Indexes/Keys : 1 ) type = Unique Key ==> IsUnique = Yes (IsUnique is disabled) 2 ) type = Index ==> IsUnique = Yes Thank you ...

How do I find, count, and display unique elements of an array using Perl?

I am a novice Perl programmer and would like some help. I have an array list that I am trying to split each element based on the pipe into two scalar elements. From there I would like to spike out only the lines that read ‘PJ RER Apts to Share’ as the first element. Then I want to print out the second element only once while counting e...

Rand(); with exclusion to and already randomly generated number..?

Hey, I have a function which calls a users associated users from a table. The function then uses the rand(); function to chose from the array 5 randomly selected userID's however!... In the case where a user doesnt have many associated users but above the min (if below the 5 it just returns the array as it is) then it gives bad results...

How to get numeric random uniqueid in SQL Server

I am using SQL Server 2005, please tell me how can I get 6 digits (unique numeric which should be random) value for every row in table. I have a field in table in which I need 6 digit numeric value (random and unique). Please help me to do this. ...

PHP mySQL - select unique value that not being used from dirrefent table

Updates : Please see below i have table: data +-----------------------+--------------+-----------+ | State | d_country | d_postcode| +-----------------------+--------------+-----------+ | State1 | Country1 | 1111 | | State2 | Country2 | 2222 | | State3 ...

jQuery: Giving each matched element an unique ID

I am writing an 'inline translator' application to be used with a cloud computing platform to extend non-supported languages. The majority of this uses jQuery to find the text value, replace it with the translation, then append the element with a span tag that has an unique ID, to be used elsewhere within the application. The problem ar...

Check name is unique if not append

My application requires the user to enter their business name, which the application will automatically create into a unique identifier to be used in URLs, ie "Bob's Cafe" will become "bobs-cafe" But if there are duplicate names I would like the application to add a number so if there is already a "bobs-cafe" we will use "bobs-cafe-1" ...

Get a unique data in a SQL query

Hi, I've a database who contain some datas in that form: icon(name, size, tag) (myicon.png, 16, 'twitter') (myicon.png, 32, 'twitter') (myicon.png, 128, 'twitter') (myicon.png, 256, 'twitter') (anothericon.png, 32, 'facebook') (anothericon.png, 128, 'facebook') (anothericon.png, 256, 'facebook') So as you see it, the name field is no...

mysql create table help with unique

I'm trying to create a table, and can't figure out how to assign two columns to be unique.. I know how to alter a table thats already created, but how do you do it in the create.. im after a create if not exist col1 TEXT, col2 TEXT, col3 TEXT unique(col1, col2) ^very rough basic but you get the idea ...

verifying unique app purchase

Hi Friends, I am looking for a way to verify if my app was downloaded by a user. I want to allow users to notify me of their purchase if they intend to donate to a cause and we would donate a percentage after verification of app purchase. I would want to see/validate a proof of purchase. It has to be unique per app download.. thanks fo...

Uniquing with Existing Core Data Entities

I'm using Core Data to store a lot (1000s) of items. A pair of properties on each item are used to determine uniqueness, so when a new item comes in, I compare it against the existing items before inserting it. Since the incoming data is in the form of an RSS feed, there are often many duplicates, and the cost of the uniquing step is O(N...

Generating multiple random numbers

I want to generate 25 unique random numbers and list them in a console. The numbers should be atleast 10 characters long. Any easy way to do that? ...

Create unique file name and fetching it to commandline argument

Hi everyone, I am working on python right now and i am little bit stuck in performing some tricks. I have web form with two options- File upload and textarea, i can easily pass file name with file upload options but have problem when it's textarea. Because when i use textarea then first i have to save values passed from textarea to some...

iPhone: Create a single UIView from multiple clicks

I'm making a partial overlay modal in my app with the code from “Semi-Modal (Transparent) Dialogs on the iPhone” at ramin.firoozye.com. In doing so, the button that calls the modal is still visible and clickable. I will hide this button when the modal spawns, but I want to be sure if the user clicks very quickly twice, a new modal doesn'...

Uniq in awk; removing duplicate values in a column using awk

I have a large datafile in the following format below: ENST00000371026 WDR78,WDR78,WDR78, WD repeat domain 78 isoform 1,WD repeat domain 78 isoform 1,WD repeat domain 78 isoform 2, ENST00000371023 WDR32 WD repeat domain 32 isoform 2 ENST00000400908 RERE,KIAA0458, atrophin-1 like protein isoform a,Homo sapiens mRNA for KIAA0458 prote...