Identify unique records on CSV based on specific columns
25857
Remove lines based on duplicates within one column without sort
67785
Creating duplicate features based on many-to-one conversion of related table?
79593
Find duplicate records in MySQL
93921
Select groups based on number of unique / distinct values
46
Oracle: function based index selective uniqueness
16236
Is it possible to enforce unique values in a column, excluding nulls?
114880
Find duplicate records in a table using SQL Server
64555
How to manipulate a CSV file with sed or awk?
19952
Counting DISTINCT over multiple columns
96093
How do I get the distinct/unique values in a column in Excel?
78728
Finding duplicate values in a SQL table
115938
Extract a particular column from a csv
34883
Remove specific duplicates (all but latest)
10613
Find unique rows in numpy.array
49227
Help us find duplicates efficiently
10061
Is there a robust command line tool for processing csv files?
157871
Techniques for finding near duplicate records