Tag: duplicates

1426 Finding duplicate values in a SQL table 2010-04-07T18:17:29.067

1182 How can I remove duplicate rows? 2008-08-20T21:51:29.780

965 Remove duplicate values from JS array 2012-02-10T14:53:22.713

694 Removing duplicates in lists 2011-11-01T00:45:24.203

640 How do you remove duplicates from a list whilst preserving order? 2009-01-26T15:43:58.483

594 Find duplicate records in MySQL 2009-05-12T18:24:21.757

500 Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop 2010-10-20T13:43:55.773

427 How do I remove repeated elements from ArrayList? 2008-10-15T08:05:26.113

410 Find duplicate lines in a file and count how many time each line was duplicated? 2011-07-15T19:53:00.703

382 Delete all Duplicate Rows except for One in MySQL? 2011-01-13T20:58:38.427

345 How do I (or can I) SELECT DISTINCT on multiple columns? 2008-09-10T15:33:10.890

310 Remove duplicate rows in MySQL 2010-07-22T18:03:56.380

292 How do I find the duplicates in a list and create another list with them? 2012-03-23T07:59:59.350

283 Remove duplicate elements from array in Ruby 2011-12-03T05:23:06.073

281 How to delete duplicate rows in sql server? 2013-08-22T20:51:14.023

223 What's the most efficient way to erase duplicates and sort a vector? 2009-06-25T00:28:42.517

210 Finding duplicate rows in SQL Server 2010-01-21T20:29:26.830

207 Remove duplicates from an array of objects in JavaScript 2010-02-08T00:40:33.610

185 How do I remove duplicates from a C# array? 2008-08-13T11:48:44.360

162 MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query 2010-04-26T15:16:05.967

161 How to get duplicate items from a list using LINQ? 2010-09-28T09:38:57.160

146 How do I remove duplicate items from an array in Perl? 2008-08-11T10:04:32.093

135 How to delete duplicates on a MySQL table? 2010-04-13T14:42:21.297

130 How do I check if there are duplicates in a flat list? 2009-10-09T04:30:32.170

129 In MySQL, can I copy one row to insert into the same table? 2010-10-28T04:24:34.880

110 Does adding a duplicate value to a HashSet/HashMap replace the previous value 2012-10-17T18:14:14.990

108 Remove duplicated rows 2012-12-20T07:17:27.640

104 How to find duplicate records in PostgreSQL 2015-01-26T18:55:46.470

101 How to find all duplicate from a List<string>? 2011-01-02T12:02:54.080

97 Removing duplicate rows in vi? 2008-12-08T22:24:19.537

96 Map implementation with duplicate keys 2009-06-30T10:35:12.353

96 Linux command or script counting duplicated lines in a text file? 2011-06-22T22:48:20.643

89 Regular Expression For Consecutive Duplicate Words 2010-05-12T21:51:39.323

85 How to find duplicates in 2 columns not 1 2009-03-13T13:18:10.857

82 Java: Detect duplicates in ArrayList? 2009-02-18T21:22:31.110

82 Algorithm: efficient way to remove duplicate integers from an array 2009-10-07T16:47:53.397

81 Finding ALL duplicate rows, including "elements with smaller subscripts" 2011-10-21T19:37:45.467

78 Delete duplicate records in SQL Server? 2010-07-23T10:49:35.290

78 python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B 2012-09-19T15:01:32.647

77 Is there a no-duplicate List implementation out there? 2008-11-06T13:25:41.313

72 How to find a duplicate element in an array of shuffled consecutive integers? 2010-04-09T07:35:06.403

71 Drop all duplicate rows in Python Pandas 2014-05-15T00:31:47.783

70 Remove duplicate records based on multiple columns? 2013-01-02T15:00:56.463

69 MySQL remove duplicates from big database quick 2009-10-30T20:01:24.117

68 Delete Duplicate Records in PostgreSQL 2011-07-05T14:02:11.490

67 Does C# Distinct() method keep original ordering of sequence intact? 2011-01-19T11:47:31.980

66 counting duplicates in a sorted sequence using command line tools 2009-07-07T13:40:26.277

63 Too much data duplication in mongodb? 2010-10-24T19:35:03.387

63 RoR nested attributes produces duplicates when edit 2013-09-22T17:08:57.247

62 Find duplicate rows with PostgreSQL 2013-01-23T01:47:11.197

58 Find indices of duplicated rows 2012-09-19T13:05:34.563

54 How to remove duplicates from a list? 2010-05-17T13:37:33.233

52 How do I duplicate item when using jquery sortable? 2011-08-04T11:14:50.610

48 Scala: Remove duplicates in list of objects 2010-10-12T08:22:25.463

48 Find all duplicate documents in a MongoDB collection by a key field 2012-02-29T00:23:37.993

48 IntegrityError duplicate key value violates unique constraint - django/postgres 2012-06-18T19:39:46.440

46 How can I mark/highlight duplicate lines in VI editor? 2009-08-12T18:53:03.273

46 php: check if an array has duplicates 2010-06-29T23:52:10.417

44 How do I delete all the duplicate records in a MySQL table without temp tables 2012-12-26T21:15:45.117

42 Fastest "Get Duplicates" SQL script 2008-10-13T09:36:18.333

41 How to remove duplicates based on a key in Mongodb? 2012-11-02T06:24:38.483

40 Determining duplicate values in an array 2012-07-17T17:52:00.047

39 Entity Framework. View return duplicate records 2010-10-20T12:45:55.047

38 Dealing with duplicate contacts due to linked cards in iOS' Address Book API 2012-07-05T19:43:40.683

38 duplicate symbols for architectures in Xcode 2012-10-20T13:39:04.130

37 Prevent auto increment on MySQL duplicate insert 2011-05-07T23:49:13.177

37 How to remove repeated elements in a vector, similar to 'set' in Python 2012-05-26T20:47:14.743

36 JQuery: Remove duplicate elements? 2010-05-12T21:42:57.747

35 How to select records without duplicate on just one field in SQL? 2012-09-02T19:43:10.300

34 how to allow duplicate keys in php array 2011-03-26T21:02:12.483

33 Android Studio: Duplicate files copied in APK META-INF/DEPENDENCIES when compile 2015-01-16T04:39:37.207

33 How to check if exists any duplicate in Java 8 Streams? 2015-05-05T12:50:13.233

31 Duplicating model instances and their related objects in Django / Algorithm for recusrively duplicating an object 2009-01-12T21:58:55.667

31 How to abort INSERT operation in MySql trigger? 2010-03-29T14:45:29.267

31 How to delete duplicate rows without unique identifier 2014-11-05T23:58:45.033

30 Finding duplicate files and removing them 2009-04-14T17:48:21.717

30 Fastest way to remove duplicate documents in mongodb 2013-01-06T16:23:20.403

30 Android Studio - How to copy a project? 2015-03-14T05:59:34.193

29 remove duplicate from string in PHP 2010-04-10T10:39:51.317

29 Cloning a record in rails, is it possible to clone associations and deep copy? 2011-05-12T10:33:21.727

29 TypeError: unhashable type: 'list' when using built-in set function 2012-11-19T23:19:01.110

29 Left Join without duplicate rows from left table 2014-03-31T18:43:03.317

29 How to repeat Pandas data frame? 2014-05-27T11:09:41.023

29 TransformException duplicate entry for common.annotations.Beta 2015-10-01T02:47:57.230

29 ffmpeg - remove sequentially duplicate frames 2016-05-07T12:25:35.590

28 What's the best way to dedupe a table? 2010-02-09T15:46:16.983

28 Remove duplicate CSS declarations across multiple files 2012-03-11T16:02:01.103

28 MySQL select rows that do not have matching column in other table 2012-06-10T12:39:09.383

28 Strong Name sn.exe: Failed to install key pair -- Object already exists 2014-05-20T07:56:23.930

28 Python(pandas): removing duplicates based on two columns keeping row with max value in another column 2015-08-19T11:10:04.797

27 how to avoid duplicates in a has_many :through relationship? 2008-11-24T22:56:25.517

27 iOS extensions with multiple targets 2014-08-20T07:03:16.787

26 Java Scanner class reading strings 2009-09-23T14:38:52.297

26 Java generating non-repeating random numbers 2013-04-14T14:32:29.803

25 How to check for duplicates in mysql table over multiple columns 2011-06-23T13:25:17.890

25 Removing Duplicates From Dictionary 2012-01-05T20:17:22.787

25 how to prevent adding duplicate keys to a javascript array 2012-05-25T15:48:22.557

24 Deleting duplicate lines in a file using Java 2009-06-15T13:14:40.153

24 How can I remove duplicates in an array but keep the same order? 2010-06-17T20:27:59.117