i have the following code awk -F, '{key=$1 FS $2 FS $3} NR==FNR{a[key]; next} !(key in a)' dubl.txt original.txt which checking for duplicates in multiply colu
list_a = [1, 2, 3] I want to print all the unique combinations from the list like this [ [1], [2], [3], [1, 2], [1, 3], [2, 3], [1, 2, 3] ] Note: Without usin
I am using R and I would like to remove combinations in a data.frame. Unique function does not seem to do the job. a b c 1 1 4 A 2 2 3 B 3
I'm currently having an issue with the date format. I have basically extracted the month and year from a standard dd/mm/yyyy date and wish this to be formatted
I'm writing a program that will print the unique character in a string (entered through a scanner). I've created a method that tries to accomplish this but I ke
I created a table using the below definition for a Teradata identity column: ID INTEGER GENERATED BY DEFAULT AS IDENTITY (START WITH 1
I need to generate unique id numbers on the fly using javascript. In the past, I've done this by creating a number using time. The number would be made up of t
I create a registation app, where users can register providing a username, email and a password. What I did is make sure that the email field is unique(as you c