offline deduplication

Simply remove text duplication .? Phperror_reporting (0); echon. enter the file to be sorted :. n; $ dictrim (fgets (STDIN); $ filefile ($ dic); $ arraypreg_replace ($ s * $) | (^ s * ^) m ,, $ file); Removes empty lines $ new_arraya Error_reporting (0 ); Echo "\ n". "Enter the file to be sorted:". "\ n "; $ Dic = trim (fgets (STDIN )); $ File = file ($ dic ); $ Array = preg_replace ('/($ \ s * $) | (^ \ s * ^)/M', '', $ file); // clear empty rows $ New_array = array_values (array_unique ($ arr

Check the code by removing and searching multi-dimensional arrays: $ A = array ('P', 'H'), array ('P', 'r'), 'o '); If (in_array (array ('P', 'H'), $ )){ Echo "'ph' was found \ n "; } If (in_array (array ('F', 'I'), $ )){ Echo "'Fi 'was found \ n "; } If (in_array ('O', $ )){ Echo "'O' was found \ n "; } Multi-dimensional array search is supported! $ Key = array ('0' => array ('en _ termin' => 'h', 'pos' => 'N ', 'CN _ define '=> 'you'), '1' => array ('en _ termin' => 'W', 'pos

Php array deduplication function code example /** * Function for removing repeated values in the array * By bbs.it-home.org */ Function array_assoc_unique ($ arr, $ key ){ $ Tmp_arr = array (); Foreach ($ arr as $ k =>$ v ){ If (in_array ($ v [$ key], $ tmp_arr )){ Unset ($ arr [$ k]); } Else { $ Tmp_arr [] = $ v [$ key]; } } Sort ($ arr ); Re

This article mainly introduces the php two-dimensional array merging and deduplication methods. The example analyzes the php techniques for merging arrays and deleting repeated items, for more information about how to merge and deduplicate two-dimensional php arrays, see the example in this article. Share it with you for your reference. The specific implementation method is as follows: $ Arr = array_merge ($ labels, $ label); // merge the two arr

); - //registering a merge class $Job.setcombinerclass (Reduce.class); the //Register Reducer Class theJob.setreducerclass (Reduce.class); the //registering the output format class theJob.setoutputkeyclass (Text.class); -Job.setoutputvalueclass (Text.class); in //setting the input and output path theFileinputformat.addinputpath (Job,NewPath (otherargs[0])); theFileoutputformat.setoutputpath (Job,NewPath (otherargs[1])); About the //Run the

var New Array (); if ($ ("input[name= ' type ']"). val ()! = "") {= $ ("input[name= ' type ')"). Val (). Split ("," ); if (SelectedValue! = "" $.inarray (SelectedValue, valuearr) = =-1) { valuearr.push (selectedvalue); } $ ("input[name= ' type ']"). Val (Valuearr.sort (). join ());JavaScript strings are transferred to and from arrays, and data

Deduplication of javascript Arrays // Remove the Array of numeric elements function sortnum (a, B) {return a-B;} Array. prototype. unique1 = function () {this. sort (sortnum); var newnumbers = [this [0]; for (var I = 0; I

Python refresh question-use stdin for input and output-random array deduplication, pythonstdin Original question address: Explicit Random Number The rules for input of a given variable may vary in different websites and different given questions. Generally, the most common input method is the sys. stdin method. For example, this simple question: 1.Input description:Input Multiple rows, enter the number of random integers, and then enter the correspond

Private Static voidcheck (string[] array) {//what are the string arrays that contain non-repeating strings? The number of each repetitionmap//① Traversal MapSystem.out.println ("Traverse key and Value by Map.keyset ():"); for(String key:map.keySet ()) {System.out.println ("The array is:" + key + "=" +Map.get (key)); } //②mapset (). Iterator ()SYSTEM.OUT.PRINTLN ("Traversal of key and value through Map.entryset () iterator ()"); IteratorMap.entryset (). iterator (); while(It.hasn

Detailed explanation of the javascript array deduplication problem, detailed explanation of the javascript Array First, I want to create another result array to store non-duplicated data in the original array. Traverse the original array and compare it with the elements in the result array to check whether the elements are repeated. As a result, I wrote the following:Code: Array.prototype.clearRepetitionA = function(){ var result = []; var isRepet

Array. prototype. unique1 = function (){Var arr = [];For (var I = 0; I // Check whether there are any arrays in it. If not, put them in.If (arr. indexOf (this [I]) =-1 ){Arr. push (this [I]) } }Return arr;}Array. prototype. unique2 = function (){Var arr = [],Json = {};For (var I = 0; I // Use a hash table and use keywords to determine deduplication// If no current entry exists in the hash tableIf (! Json [this [I]) {Json [this [I] = true;Arr. push (th

Array deduplication Src: http://yiminghe.javaeye.com/blog/524716 This is a classic problem. After removing the repeated elements in the array, I searched the internet and found that most of them are the solution regardless of reposted or original: Solution:Js Code Function uniq (array ){ Var map = {}; Var re = []; For (var I = 0, l = array. length; I If (typeof map [array [I] = "undefined "){ Map [array [I] = 1; Re. push (array [I]); } }

Importjava.util.List;Importjava.util.ArrayList;ImportJava.util.Set;ImportJava.util.HashSet; Public classCode { Public Static voidmain (String [] args) {TestA (); System.out.println ("==========================="); Testb (); System.out.println ("==========================="); TESTC (); } //remove duplicate values from the array Public Static voidTestA () {String [] str= {"Java", "C + +", "Php", "C #", "Python", "C + +", "Java"}; for(String elementa:str) {System.out.print (Elemen

main field = @idFetch cur_rows into @id, @maxEndClose Cur_rowsSET ROWCOUNT 0Method TwoThere are two meanings of duplicate records, one is a completely duplicate record, that is, all fields are duplicated records, and second, some key fieldsDuplicate records, such as the Name field, and the other fields may not be repeated or repeated can be ignored.1, for the first kind of repetition, easier to solve, usingSELECT DISTINCT * from TableNameYou can get a result set with no duplicate records.If the

and truncate carefully, especially when there is no backup. Otherwise, it's too late to cry.6. On the use, want to delete some data rows with delete, note with the WHERE clause. The rollback segment should be large enough. If you want to delete a table, delete all of the data by dropping it to keep the table. If it is unrelated to the transaction, use truncate. If it is related to a transaction, or if you want to trigger trigger, or delete the fragment inside the table, you can use truncate to

Label:How is duplicate data removed from the Oracle database? When working with data tables, there are often duplicate data, so how do you delete them? Let's talk about removing data duplication from Oracle databases. There are two ways we are going to talk today.First, according to rowID come and go heavy.We all know that in Oracle database tables, each record has a unique rowid to identify, which allows us to go to the heavy query conditionWe have a test table, first of all, if we're going to

1), you can delete them as follows[SQL]View PlainCopy Select Distinct * to #Tmp from tableName Drop Table TableName SELECT * into tableName from #Tmp Drop Table #Tmp This duplication occurs because the table is poorly designed and the unique index columns are added to resolve.2, this kind of repetition problem usually requires to keep the first record in the duplicate record, the operation method is as followsSuppose there is a duplicate field name,address, which r

Label:In a database table, duplicate values may be included. That's not a problem, but sometimes you might want to just list different values (distinct). Keyword DISTINCT is used to return only different values. Table A: 1. Acting on a single rowSelect distinct from A The following results are performed: Acting on multi-column Example 2.1Select distinct from A The following results are performed: In fact, it is the same way that access and SQL Server support it, depending on the name and ID t

Tags: unique values Group Stat author A10 sage how multiple artReference: Http://blog.sina.com.cn/s/blog_6c9d65a10101bkgk.htmlHttp://www.jb51.net/article/39302.htm 1, use distinct to weight (suitable for querying the total number of the whole table)There are multiple schools + teachers to contribute, need to count the total number of authorsSelect COUNT (author) as Total from files each author has a lot of contributions, there are duplicate records here. Select distinct author from files; It is

Label:CREATE TABLE #tp(Headerno VARCHAR (10),Machineno VARCHAR (10),Descrption NVARCHAR (20),Artno VARCHAR (20),Qty INT,Repartno varchar (20),Repqty INT) INSERT INTO #tp SELECT ' HD01 ', ' 0101520 ', N ' battery problem ', ' 102020 ', 2, ' 102020 ', 2INSERT INTO #tp SELECT ' HD01 ', ' 0101520 ', N ' battery problem ', ' 101010 ', 2, ' 202020 ', 2INSERT INTO #tp SELECT ' HD01 ', ' 0101520 ', N ' battery problem ', ' 126888 ', 2, ' 102020 ', 2INSERT INTO #tp SELECT ' HD02 ', ' 01012221 ', N ' d mo