Top "Duplicates" questions

The "duplicates" tag concerns detecting and/or dealing with multiple instances of items in collections.

phpMyAdmin: MySQL Error 1062 - Duplicate entry

I connect with user "root" onto my database "test" which I host locally for development. Among others I have the …

mysql phpmyadmin corruption mysql-error-1062 duplicates
MySQL Duplicate error with ALTER IGNORE TABLE

I have a table in my MySQL with duplicates. I try to delete the duplicates and keep one entry. I …

mysql duplicates ignore mysql-error-1062
Why java has a lot of duplicate methods?

I was playing with Java as I am planning to switch from C# to it for cross platform purposes. I …

java duplicates primitive-types
Javafx adding dynamically pane to vbox Duplicate Children error

I have a pane with a label, a text field and a combo box inside a VBox in fxml file. …

javafx duplicates children pane vbox
Find duplicate sibling with xpath

How to find only nodes with at least a similar/equal sibling node using Xpath? For example: <root> &…

xpath duplicates xpath-2.0 siblings
How to Remove Duplicate Matches in a MatchCollection

In my MatchCollection, I get matches of the same thing. Like this: string text = @"match match match"; Regex R = new …

c# regex duplicates match
R: Make unique the duplicated levels in all factor columns in a data frame

For several days already I've been stuck with a problem in R, trying to make duplicate levels in multiple factor …

r dataframe duplicates factors levels
Python: Rename duplicates in list with progressive numbers without sorting list

Given a list like this: mylist = ["name", "state", "name", "city", "name", "zip", "zip"] I would like to rename the duplicates …

python list duplicates rename
Multiple DISTINCT ON clauses in PostgreSQL

Is it possible to select rows that are DISTINCT ON some separate, independent sets of columns? Suppose I want all …

sql postgresql duplicates distinct-on
Data Deduplication algorithm for large number of contacts

I'm developing an application which must be able to find & merge duplicates in a Hundreds of thousands of contact …

algorithm duplicates fuzzy-logic record-linkage