What happens with duplicates when inserting multiple rows?
sql,postgresql,exception,duplicates,upsert
The INSERT will just insert all rows and nothing special will happen, unless you have some kind of constraint disallowing duplicate / overlapping values (PRIMARY KEY, UNIQUE, CHECK or EXCLUDE constraint) - which you did not mention in your question. But that's what you are probably worried about. Assuming a...
How do I avoid saving duplicate records when saving objects with many to many relationships?
c#,entity-framework,asp.net-mvc-5,duplicates,many-to-many
I'd say you are on the right track. If tag names are unique theres no need to "Count" though. Just get the first one if it exists. Swap out dupes and do nothing for uniques // check for duplicate entries foreach (var tag in post.Tags.ToList()) { var dupeTag = uwork.TagRepository.GetAll().FirstOrDefault(t...
Returning a formatted string does not working properly
java,format,return,duplicates,string.format
If you store usernames using %03d, i.e. with leading zeros, you also should use this when you compare the string in your userNameList: userNameList.get(i).equals(String.format("%s%s%03d", p1, p2, p3)) ...
Adobe After Effects: Keep “Expression-Relations” when duplicating multiple layers
duplicates,expression,adobe,after-effects
You might end up wanting to organize your comp differently, but, given your example (and exactly those name lengths), this position expression will work to find the appropriate 'target layer': //base name to work from: baseName = "Layer"; //length of that: nameLen = baseName.length; //this layer's name: myName = thisLayer.name;...
What is the best and fast way to check data in string duplicate or not?
Put those values into an array, remove duplicate values, and then compare that array to the original array. If they're the same there are no duplicates. $values = explode(',', $data); var_dump($values == array_unique($values)); Demo...
Need to find duplicates from an array in c++, and then put them in another array
c++,arrays,input,duplicates,output
To give you a better understanding of how to solve this, i'll try to show you what is going on via an example. Lets say you have just entered the 6 numbers you request via cin, and your a[] variable now looks like this in memory: a[] = { 5,...
VB Remove duplicate lines from textbox
vb.net,visual-studio,textbox,duplicates
You could use a HashSet(Of String) + String.Join: Dim uniqueUrls As New HashSet(Of String) For Each curElement As HtmlElement In theElementCollection If curElement.GetAttribute("href").Contains("/watch") Then uniqueUrls.Add(curElement.GetAttribute("href")) End If Next TextBox1.Text = String.Join(vbCrLf, uniqueUrls) ...
create and insert randomly duplicates
Not sure if I understand what you are trying to do. You'll probably need a library for random selection: import random Now here is your input string: s = "AppleStrawberryBananaCitrusOrange" print s You can use random.randint to select a random position and extract a 4-character word: i = random.randint(0, len(s)...
R create a column based on duplicate values of one column, and a second column
You want an aggregation: aggregate(B~A, df, FUN=sum) ...
How to check if exists any duplicate in Java 8 Streams?
Your code would need to iterate over all elements. If you want to make sure that there are no duplicates simple method like public static <T> boolean containsUnique(List<T> list){ Set<T> set = new HashSet<>(); for (T t: list){ if (!set.add(t)) return false; } return true; } would be more efficient....
Collection without duplicates (based on id) but keeps the highest version number
You can wrap a map and provide additional methods, that check item version. Here is put method, for example. class MyMap<ID, E> extends HashMap<ID, E extends Versioned & HasId<ID>> { public void put(E elem) { if (containsKey(elem.getId()) { E exist = get(elem.getId()); if (elem.version.isGreater(exist.version)) super.put(elem.getId(), elem); } else { super.put(elem.getId(),...
duplicate an android studio project
android,gradle,duplicates,project,sync
i think that i found the source of my problem it was a virtual machine problem. so the solution is : open file -> settings clic to : compiler in the VM option field put te following value: -Xmx512m That's all...
trying to delete automatically added and sorted answers from a VBA textbox into excel cells
excel,vba,delete,duplicates,add
It is generally recommended to disable events inside event processing code if you are likely to trigger the event you are processing. Delete will cause the Selection to change which will cause this event to fire again. See this excellent post on the topic. To resolve, add Application.EnableEvents = False...
Delete files with same md5sum in cshell
I'll assume that your goal is to delete certain lines from your textual input, not actually to delete the files. Like this: awk '! seen[$1]++' This reads from standard input. If the input is in a file, you can do: awk '! seen[$1]++' inputfile.txt Or, if it's the output of...
Conditionally removing duplicate rows from a data frame
r,data.frame,duplicates,conditional
Looks like a job for aggregate(). # Input data frame df <- data.frame(Gene=c("AKT", "MYC", "MYC", "RAS", "RAS", "RAS", "TP53"), Expression=c(3, 2, 6, 1, -4, -1, -3)) # Maximum absolute value of Expression by Gene maxabs <- with(df, aggregate(Expression, list(Gene=Gene), FUN=function(x) max(abs(x)))) # Combine with original data frame df <- merge(df,...
Check for duplicates in JSON
javascript,jquery,json,duplicates
var asset = [ { value1: "1", value2: "2", value3: "3" }, { value1: "1", value2: "5", value3: "7" }, { value1: "6", value2: "9", value3: "5" }, { value1: "6", value2: "9", value3: "5" } ]; function countEqual(oo, pp) { var count = 0; oo.forEach(function (el) { var i,...
number of identical ids in a data frame [duplicate]
Try: library(dplyr) df %>% group_by(Group) %>% mutate(eventNumber = row_number()-1) ...
PHP / MySQL: How to return info if record already exists (without update)
php,mysql,ajax,insert,duplicates
You just need a simple SELECT call before inserting. $conn = new mysqli($servername, $username, $password, $dbname); $conn->set_charset("utf8"); if($conn->connect_error){ die("Connection failed: " . $conn->connect_error); } $email = $_POST["email"]; $dob = $_POST["dob"]; $sql = "SELECT email FROM Users WHERE email = " .$email; $query = $conn->query($sql); if (mysqli_num_rows($query) > 0){ echo "There...
Find a single duplicate in a list of lists Netlogo
This is quick and dirty, but find-dup should return the first duplicated item (in this case a sublist) in the list. to go let listA [[-9 2] [-9 1] [-9 0][-9 -1][-9 -2][-9 -3][-9 -4][-8 0][-9 0]] show find-dup listA end to-report find-dup [ c ] ;returns the first duplicated...
SQL Show All column by one column distinct
sql,oracle,select,duplicates,distinct
try this: SELECT * FROM myTable WHERE ID IN(SELECT MIN(ID) FROM myTable GROUP BY Code) ...
mysql self join with group_concat and without duplicates
mysql,duplicates,group-concat,self-join
This is a rather unorthodox solution, but hey... SELECT MIN(x.id) id , GROUP_CONCAT(DISTINCT y.id) duplicates FROM duplicates x JOIN duplicates y ON y.name = x.name AND y.id > x.id GROUP BY x.name ...
How to find matching rows in Pandas DataFrame with identical values with same/opposite signs in certain columns?
python,pandas,duplicates,dataframes,matching
This idea should work: Self join DF on c,d Apply condition of opposite values... A quick and dirty code ndf = merge(left=df1,right=df1,on=('c','d'),how='inner') out = ndf[(ndf.a_x == (-1)*ndf.a_y) & (ndf.b_x == (-1)*ndf.b_y)] Please let me know if this works...
mysql duplicate rows and replace
You could use an insert-select statement. To just duplicate the rows: INSERT INTO mytable SELECT * FROM mytable WHERE <some condition> To duplicate with a different style: INSERT INTO mytable SELECT col1, col2, 'someString' AS style FROM mytable WHERE <some condition> ...
Excel VBA code: Preventing duplicates in a column regardless the sensitive case of the entry
excel,vba,excel-vba,duplicates
To change case in VBA, you have LCase and UCase, which will respectively change all of your string into lower case or upper case. Here is your code with the change and got ride of the useless (and ressource-greedy) select at the end : Sub tarheel() LastRow = Range("A10000").End(xlUp).Row +...
R — frequencies within a variable for repeating values
You can try library(data.table)#v1.9.4+ setDT(yourdf)[, .N, by = A] ...
Regex/Algorithm to find 'n' repeated lines in a file
regex,algorithm,count,find,duplicates
One way is splitting your text based on your n then count the number of your elements that all is depending this counting you can use some data structures that use hash-table like dictionary in python that is much efficient for such tasks. The task is that you create a...
Excel to sum value of duplicates while retaining its duplicate text
One important point to consider here: First, because you need to sum values AND change the values you're summing, you're going to get a circular reference if you try to do this dynamically. One way to get around this is to add a third column, with the formula =SUMIF(A:A,A1,B:B) If...
cannot invoke get int on the array type comparable[ ]
java,arraylist,duplicates,syntax-error
Arrays don't have the get(int) method. Instead, they use the [int] syntax: if (data[i].equals(data[j])) { return true; } ...
Use tSQL to sequentially increment value based on other values
You can use ROW_NUMBER() for this: ;WITH cte AS (SELECT *,ROW_NUMBER() OVER(PARTITION BY [First],[Last],[Title],[Grade] ORDER BY Replicate) AS UPD_Replicate FROM Table1 ) SELECT * FROM cte Demo: SQL Fiddle Or to UPDATE the field: ;WITH cte AS (SELECT *,ROW_NUMBER() OVER(PARTITION BY [First],[Last],[Title],[Grade] ORDER BY Replicate) AS UPD_Replicate FROM Table1 )...
PHP multidimensional array, average of duplicate values
php,arrays,multidimensional-array,duplicates
What about adding a count field to your result array... foreach ($reviews as $val) { if (!isset($result[$val['sku']])) { $result[$val['sku']] = $val; $result[$val['sku']]["count"] = 1; } else{ $result[$val['sku']]['rating'] += $val['rating']; $result[$val['sku']]["count"] ++; } } foreach($result as $k => $v) { $result[$k]['avg'] = $v['rating']/$v['count']; } ...
Pull all records only if 3 dups or more exist
I think you want something like - gives you all rows with 3 or more records SELECT category, measure, date FROM my_table t1 inner join ( SELECT category, measure FROM my_table group by category, measure having count(*) >= 3 ) t2 on t2.category = t1.category and t2.measure = t1.measure To...
PHP: Checking two arrays for duplicate values
You have to make a third array that handles the resultant value i.e the full name. The following example will return two arrays, duplicates array and fullnames array without duplicates: <?php $firstname = array ( "John", "Tom", "Ben", "John", "David", "Julie", "David"); $lastname = array ("Kennedy", "Hyde", "Hughes", "Harper", "Walter",...
Is there a better way to find duplicate rows _including_ the first/last?
You can count occurrences of a and return values>1 for duplicated rows. In [25]: df[(df.groupby('a').transform('count')>1).values] Out[25]: a b 0 1 a 1 1 s 2 1 d ...
VBA for duplicate rows
Try this code: . Option Explicit Public Sub showDuplicateRows() Const SHEET_NAME As String = "Sheet1" Const LAST_COL As Long = 3 ' <<<<<<<<<<<<<<<<<< Update last column Const FIRST_ROW As Long = 2 Const FIRST_COL As Long = 1 Const DUPE As String = "Duplicate" Const CASE_SENSITIVE As Byte = 1...
Handle side effects caused by duplicate POST requests
web-services,rest,post,duplicates,idempotent
This a common problem with concurrent users. One way to solve it is to enforce conditional requests, requiring clients to send the If-Unmodified-Since header with the Last-Modified value for the resource they are attempting to change. That guarantees nobody else changed it between the last time they checked and now....
Duplicates issue
Another option could be Proc SQL, no pre-sort needed: proc sql; create table want as select * from have group by a, b, c, d having count(*)>1; /*This is to tell SAS only to keep those dups*/ quit; ...
Ignore duplicate in string and print string once
java,string,if-statement,while-loop,duplicates
You can put all the string token in Set and check if that token contain in Set befor you process further as below :- // Declration .... Set courseSet = new HashSet(); ... // Check befor you process further if(!courseSet.contains(course)) { ... // Your Code... ... courseSet.add(course) } ...
Excel: Count of unique items while ignoring junk duplicates
Let say your column is column A with IDs from row A2-A26, on A28 try this formula: =SUMPRODUCT((A2:A26<>"")/COUNTIF(A2:A26,A2:A26&"")) It worked for my other project. It doesn't need to create another column or table. ...
How to display empty values after duplication of form
You need to empty the value of input on your clone like this $(document).ready(function() { var id = 1; // get item var item = $("#addparts"); var before = $('#div_button'); // initalize event click $('#addMore').on('click', function() { // clone addparts var clone = item.clone(true); // remove id clone.attr('id', ''); //...
Access SQL: How to find duplicate records between dates
One method is to use exists: select t.* from table as t where date between #2014-01-01# and #2014-12-31# and exists (select 1 from table as t2 where date between #2014-01-01# and #2014-12-31# and t2.sn = t.sn and t2.date <> t.date ); However, this will not find an sn that has...
Create duplicate rows based on conditions in R
r,duplicates,conditional,data.table
You could try rbind(dt,dt[Dupl==1][,c('Amount1', 'Dupl') := list(Amount2, 2)]) ...
Remove almost duplicated strings
keeping the spirit of what you tried: my %seen; my @result = grep {! $seen{(split "_",$_)[0]}++} <DATA>; print @result; __DATA__ revised_1.4_1.4-1.05-jan revised_1.5_1.8-before revised_1.5_1.8-after revised_1.5_0.7-mid deleted&reviewed_0.9-0.8-1.05-jan deleted&reviewed_1.6_1.6-before deleted&reviewed_0.5_1.8-after deleted&uploaded_0.8_1.9-midweek deleted&uploaded_1.0_1.3-offweek accessedbeforesecondquarter_0.8._1.6-jan accessedbeforesecondquarter_0.9_1.7-feb result: revised_1.4_1.4-1.05-jan...
ld: duplicate symbols for architecture x86_64
c++,osx,duplicates,x86-64,symbols
You have instantiated a Game instance in your header file "Game.h", and since this is being included in multiple files you end up with multiple instances of game at link time. Change: class Game { public: ... }game; to: class Game { public: ... }; extern Game game; and then...
Find duplicates with a suffix in excel and keep results
excel,excel-formula,duplicates
do you mean the data you have looks like this: column A column B column C ABC 5 ABC-123 3 ABC-543 2 if so, you can select column A then go to data then text to columns then delimited select other by putting - sign, next and finish. result must...
std::find in a vector of glm::vec3 is not working (OpenGLTriangle Normals with a crease angle)
c++,opengl,vector,find,duplicates
You can't compare floating point values simply using a simple x == y expression as if they were integers. You have to compare them using a "threshold", a "tolerance", e.g. something like: // Assuming x and y are doubles if (fabs(x - y) < threshold) { // x and y...
Appending charactes to a string when duplicate found
sql-server,sql-server-2012,duplicates
Try this one: SQL Fiddle WITH CteUpdate AS( SELECT *, base = REPLACE(Name, 'x', ''), xxName = REPLICATE('x', ROW_NUMBER() OVER( PARTITION BY REPLACE(Name, 'x', '') ORDER BY ID ) + 1 ) + REPLACE(Name, 'x', '') FROM TestData WHERE REPLACE(Name, 'x', '') IN( SELECT Name FROM TestData WHERE [Update] =...
How to rename duplicate lines with awk?
$ awk 'cnt[$0]++{$0=$0" variant "cnt[$0]-1} 1' file I am a test line She is beautiful need for speed Nice day today I am a test line variant 1 stack overflow is fun I am a test line variant 2 stack overflow is fun variant 1 I have more sentences I...
Python duplicate a python-igraph
python,reference,duplicates,igraph
Assign statements do not copy objects in Python. You might want to use copy.deepcopy() function. More details about copy.shallow() and copy.deepcopy() can be found in this answer Also Graph objects have inherited copy method which make deep copies. Use this code copy1 = fullGraph.copy() copy2 = fullGraph.copy() ...
SQL exclude duplicated pairs of columns from a two-column select
sql,select,duplicates,distinct,rows
Its a very subtle change (> vs your !=), but what you want to do is use a diagonal elimination approach, whereby you exclude any reviewer with a rid lower than the current one: SELECT DISTINCT re1.name, re2.name FROM reviewer re1 INNER JOIN rating ra1 ON re1.rid=ra1.rid CROSS JOIN reviewer...
using ruby to delete duplicate words from text file
ruby,delete,duplicates,readfile
I would do it like this: require 'set' def copy_unique_lines(source, target) lines = Set.new File.open(target, 'w') do |out| File.open(source, 'r').each_line do |line| if lines.add?(line) out << line end end end end In which source and target are file paths: copy_unique_lines('path/input.txt', 'path/output.txt') ...
Find duplicate element in a list of lists [closed]
python,duplicates,nested-lists
Assuming you're looking for a specific target (your question was unclear): def find_dupe(lists, target): seen = set() for lst in lists: for item in lst: if item == target and item in seen: return True seen.add(item) DEMO: >>> find_dupe([[20, 21, 22], [17, 18, 19, 20], [10, 11, 12, 13]], 20)...
opening file error with duplicates
In each iteration of your loop, when: if not(chain in line): contain+=line print(contain) since you concatenate each line in contain, when you print it, it will show you the first sentece, from the first iteration, then the first+second sentences in the second iteration, and so on. Hence the duplication. Replacing...
C++ duplicate symbols
Explicit function template specialisations are subject to the One Definition Rule, just as regular functions are. Add inline to allow definitions in a header; or define them in a source file, with declarations in the header.
Remove first occurrence of a number from a list
You can use match and negative indexing. v[-match(x, v)] produces [1] "d09" "d01" "d02" "d13" match only returns the location of the first match of a value, which we use to our advantage here. Note that %in% and is.element are degenerate versions of match. Compare: match(x, v) # [1] 6...
Counting the number of pairs in a vector
ng <- length(V)/2 table(sapply(split(V,rep(1:ng,each=2)),paste0,collapse="&")) # -1&-1 -1&1 1&-1 1&1 # 1 1 1 1 Here is a better alternative that also uses split, following the pattern of @MartinMorgan's answer: table(split(V,1:2)) # 2 # 1 -1 1 # -1 1 1 # 1 1 1 ...
sql find and remove duplicate columns with trim
Use TRIM in the select and GROUP BY clauses: SELECT COUNT(*) AS nb_duplicates, our_ref, TRIM(BOTH '\n' FROM partner_ref), partner_tag FROM partners_entries GROUP BY our_ref, TRIM(BOTH '\n' FROM partner_ref), partner_tag HAVING COUNT(*) > 1 Use an extended TRIM syntax to remove the newlines and other symbols from your data SQL Fiddle...
how to reject duplicate values [closed]
Store your numbers in a collection, such as a list. Then you can check if new numbers are already in the collection before adding more. integers = [] while len(integers) < 10: a = input("Enter an integer: ") if a in integers: print("Sorry, that number was already entered.") else: integers.append(a)...
hide options in comboBox java swing
java,swing,duplicates,jcombobox
Create POJO which represents the basic properties of the Piece... public class Piece { private Image image; private String name; public Piece(String name, Image image) { this.image = image; this.name = name; } public Image getImage() { return image; } public String getName() { return name; } } Add these...
How to remove duplicates from a list of custom objects, by a property of the object [duplicate]
c#,linq,list,object,duplicates
var distinctItems = myList.GroupBy(x => x.prop1).Select(y => y.First()); ...
Remove duplicates numbers above 10 in a String [duplicate]
Assuming that you are using a separator such as ,, you can use String.split() method which gives you an array of Strings and loop through all this strings, here's the code you need: String[] strArray = str.split(","); for(String string : strArray) { char [] charArray = string.toCharArray(); for (Character c...
PHP - Compare a string to all in array and only echo once (unique)
This should work for you: Just get your file into an array and then grab the paths out of each line. <?php $lines = file("test.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES); $directorys = array_unique(array_map(function($v){ preg_match("/.*? : \[.*?\] \"(.*?)\"/", $v, $m); return $m[1]; }, $lines)); print_r($directorys); ?> output: Array ( [0] => home/club/member [1]...
Delete common objects in two vectors/get duplicate objects in a vector (NOT erase)
Getting all the repeated elements of a vector is a costly operation (you would have to iterate for each vector element through all the rest of the vector) and won't be an "easy" way to do it (talking about iterations) but transforming into a set and back don't seem a...
Finding all permutations of a number without duplicates (edited for clarity)
javascript,arrays,recursion,duplicates
This is how I would do it: var permute = (function () { return permute; function permute(list) { return list.length ? list.reduce(permutate, []) : [[]]; } function permutate(permutations, item, index, list) { return permutations.concat(permute( list.slice(0, index).concat( list.slice(index + 1))) .map(concat, [item])); } function concat(list) { return this.concat(list); } }()); function...
removing and aggregating duplicates
You could do: library(dplyr) df %>% # create an hypothetical "customer.name" column mutate(customer.name = sample(LETTERS[1:10], size = n(), replace = TRUE)) %>% # group data by "Parcel.." group_by(Parcel..) %>% # apply sum() to the selected columns mutate_each(funs(sum(.)), one_of("X.11", "X.13", "X.15", "num_units")) %>% # likewise for mean() mutate_each(funs(mean(.)), one_of("Acres", "Ttl_sq_ft", "Mtr.Size"))...
Multiple duplicates (2 times, 3 times,…) in R
I would use ave to write a simple function like this: myFun <- function(vector, thresh) { ind <- ave(rep(1, length(vector)), vector, FUN = length) vector[ind > thresh + 1] ## added "+1" to match your terminology } Here it is applied to "v": myFun(v, 1) # [1] "c" "c" "c"...
highlight “partial” duplicates across entire sheet in Google Sheets using conditional formatting
formatting,duplicates,conditional,highlight,partial
Thanks to a genius over at the Google Product Support Forums named Isai Alvarado I finally have the solution... =if(C2<>"",ArrayFormula(countif(left($C$2:$Z$18,4),left(C2,4)))>1) I hope this helps anyone else trying to highlight partial duplicates across multiple columns. ...
Python - Find same values in a list and group together a new list
Someone mentions for N=[1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 1] it will get [[1], [2, 2], [3, 3, 3], [4, 4, 4, 4], [5, 5, 5, 5, 5], [1]] In other words, when numbers of the list isn't in order or...
ms-access Group BY a match between several fields
sql,ms-access,duplicates,group
You can create a union query: SELECT Field1 AS FieldValue FROM MyTable UNION ALL SELECT Field2 AS FieldValue FROM MyTable UNION ALL SELECT Field3 AS FieldValue FROM MyTable Now use this query as source in a query similar to your original....
java.util.zip.ZipException: duplicate entry |Android Studio
compile 'com.android.support:support-v4:22.1.1' compile ('com.android.support:appcompat-v7:22.1.1') { exclude module: 'support-v4' } compile ('com.facebook.android:facebook-android-sdk:4.2.0') { exclude module: 'support-v4' } compile ('com.github.navasmdc:PhoneTutorial:[email protected]') { exclude module: 'support-v4' } ...
Underscore.js, remove duplicates in array of objects based on key value
javascript,arrays,object,duplicates,underscore.js
Use _.uniq with a custom transformation, a function like _.property('name') would do nicely or just 'name', as @Gruff Bunny noted in the comments : var mySubArray = _.uniq(myArray, 'name'); And a demo http://jsfiddle.net/nikoshr/02ugrbzr/...
Error : duplicate files during packaging of APK
Include exclude 'lib/armeabi-v7a/libmp3lame.so' as well in the PackagingOption section. packagingOptions { exclude 'META-INF/DEPENDENCIES' exclude 'META-INF/LICENSE' exclude 'META-INF/LICENSE.txt' exclude 'META-INF/license.txt' exclude 'META-INF/NOTICE' exclude 'META-INF/NOTICE.txt' exclude 'META-INF/notice.txt' exclude 'META-INF/ASL2.0' exclude 'lib/armeabi-v7a/libmp3lame.so' } ...
“Duplicate” entries in ArrayList?
java,inheritance,arraylist,duplicates
I agree with Georgi, you equals method is the culprit. Currently it is returning true after the first if statement at the line that reads if(this.getEmployeeName().equals(temp.getEmployeeName())){ return true; } Because it is a return statement it stops the method from continuing to the other statements. You might try this: public...
Return duplicates in a list based on 2 criteria
We can use Reduce with intersect in base R lapply(my.list, function(x) x[with(x, Letters %in% Reduce(intersect, split(Letters, Numbers))),]) Or using dplyr library(dplyr) lapply(my.list, function(x) x %>% group_by(Letters) %>% filter(n_distinct(Numbers)==2)) Instead of having a list, it can be changed to a single dataset with an additional grouping column and then do the...
Find duplicate values in input
java,hashmap,duplicates,hashset
Give this a try... It utilizes a HashMap of Lists public static void main(String[] args) { List<String> inputs = new ArrayList<>(); inputs.add("Apple: 0 1"); inputs.add("Apple: 4 5"); inputs.add("Pear: 0 10"); inputs.add("Pear: 11 13"); inputs.add("Apple: 5 10"); inputs.add("Apple: 2 4"); Map<String, List<Fruit>> fruits = new HashMap<>(); for (String input : inputs)...
SQL - Select distinct on two column
sql,postgresql,sql-update,duplicates,distinct
When you use GROUP BY you cannot include in the select list a column which is not being ordered. So, in your query it's impossible to inlcude Id in the select list. So you need to do something a bit more complex: SELECT Id_Category, Id_Theme, (SELECT Id FROM Words W...
R !Duplicate by Factor Level
library(dplyr) test%>%group_by(fact,id)%>%distinct(id) ...
I want to give same number to the duplicate data in excel
excel,duplicates,serial-number
Sort your column A then insert the number 1 in cell B2 and the following function in cell B3 and copy down. in cell B2=1 function in cell B3: =if(A3=A2, B2, B2+1) Update ...
Oracle - Arbitrarily pick one of multiple rows based on single unique key
sql,oracle,group-by,duplicates,candidate-key
You can use min in analytical version here, it is fast: select TGroup, min(Group_Desc) over (partition by tgroup) from t SQLFiddle demo first_value is also the option: select TGroup, first_value(Group_Desc) over (partition by tgroup order by subgroup) gd from t ...
Create a new array adding duplicate values together
This will work: var source = [['bourbon', 2], ['bourbon', 1],['scotch', 2]]; var hash = {}; var consolidated = []; source.forEach(function(item) { hash[item[0]] = (hash[item[0]] || 0) + item[1]; }); Object.keys(hash).forEach(function(key) { consolidated.push([key, hash[key]]); }); jsFiddle...
Removing duplicate rows after checking all columns
excel,vba,excel-vba,duplicates
To delete the duplicate you can just click the "Remove duplicate" button at Data Ribbon > Data Tools. Following is the demo: I have the data like this in the worksheet: I would like to have unique data at column A click the "Remove duplicate" button and following screen prompted...
Excel - Compare more than a column using VLOOKUP
This was something close to what you were looking forward to, by just using formula than a macro/script. Essentially done using a concatenate function and VLOOKUP. Step 1. concatenate value from your database and add it under Col A. Step 2. Use VLOOKUP as in the image and compare using...
Excel three column duplication and averaging
Just use a pivot table: Select all the data (including headers) in columns Latitude, Longitude, and Data. Choose Insert > PivotTable. Drag Latitude and Longitude into the Row Labels section. Choose PivotTable Tools > Design > Report Layout > Show in Tabular Form and Repeat All Item Levels. Also choose...
Diff an Array (without modifying original arrays)
Your code currently only crawls through one array (let's call it A) and pushes in all the A values that don't exist in B. You never go the other way and push in the B values that don't exist in A. There's also no need to have different behavior based...
Deleting duplicates in a time series
sql-server,duplicates,time-series,sql-delete
You can do this using a CTE and ROW_NUMBER: SQL Fiddle WITH CteGroup AS( SELECT *, grp = ROW_NUMBER() OVER(ORDER BY MS) - ROW_NUMBER() OVER(PARTITION BY Value ORDER BY MS) FROM YourTable ), CteFinal AS( SELECT *, RN_FIRST = ROW_NUMBER() OVER(PARTITION BY grp, Value ORDER BY MS), RN_LAST = ROW_NUMBER()...
How do I obtain the duplicated values of two ArrayLists?
java,arraylist,duplicates,array-merge
You can use the List#retainAll(Collection<?> c) method, which: Retains only the elements in this list that are contained in the specified collection (optional operation). In other words, removes from this list all of its elements that are not contained in the specified collection. List<Point> first = ... List<Point> second =...
why only adding last element arraylist on new arraylist [closed]
java,for-loop,arraylist,duplicates,element
The last element is not being added to HM, you're adding a reference to the same list to HM. Iteration 1: HM = ["a"] Iteration 2: HM = [["a", "b"], ["a","b"]] Iteration 3: HM = [["a", "b", "c"], ["a", "b", "c"], ["a", "b", "c"]] This is easily fix by instead...
Return value based on duplicate columns
You can try with group by: select Firstname , Lastname , case when count(*) > 1 then '**ERROR**' else age end from Table group by Firstname , Lastname , age; Or in case you want to return all rows with duplicates: select t.Firstname , t.Lastname , case when (select count(*)...
How do unique indexes really work and avoid collisions?
mongodb,indexing,duplicates,unique-constraint
Writes can not be applied simultaneously to the dataset. When a write is sent to a MongoDB instance, be it a shard or a standalone server, here is what happens A collection wide write lock (which resides in RAM) is requested When the lock is granted, the resulting data to...
Python: Rename duplicates in list with progressive numbers without sorting list
This is how I would do it. mylist = ["name", "state", "name", "city", "name", "zip", "zip"] from collections import Counter # Counter counts the number of occurrences of each item counts = Counter(mylist) # so we have: {'name':3, 'state':1, 'city':1, 'zip':2} for s,num in counts.items(): if num > 1: #...
SQL Query Filter to locate DUPLICATES in a column based on Values in 2 other columns
You can use LEAD, LAG window functions in order to locate records that have been split: SELECT Name, MIN(ArrivalDate) AS ArrivalDate, MAX(DepartureDate) AS DepartureDate FROM ( SELECT Name, ArrivalDate, DepartureDate, CASE WHEN ArrivalDate = LAG(DepartureDate) OVER (PARTITION BY Name ORDER BY ArrivalDate) OR DepartureDate = LEAD(ArrivalDate) OVER (PARTITION BY Name...
Removing duplicates from a data frame, very fast
We could get the index of rows (.I[which.min(..)) that have minimum 'VALUE' for each 'SYMBOL' and use that column ('V1') to subset the dataset. library(data.table) dt[dt[,.I[which.min(VALUE)],by=list(SYMBOL)]$V1] Or as @DavidArenburg mentioned, using setkey would be more efficient (although I am not sure why you get error with the original data) setkey(dt,...
Find Duplicates in SQL Server Table
With row_number window function: with cte as(select *, row_number() over(partition by UserID, clockin, clockout order by RecordID ) as rn from TableName) delete from cte where rn > 1 ...
R - remove “one after another” duplicates
You can use the run length encoding lengths to pick out the rows you want. If used raw in a cumsum it will give you the last value in a sequence, but you can get the first by subtracting the lengths from the cumulative sum and adding one. x <-...