duplicates

问题 I want to remove all duplicate records except the first one. Like : NAME R R rajesh YOGESH YOGESH Now in the above I want to remove the second "R" and the second "YOGESH". I have only one column whose name is "NAME". 回答1: Use a CTE (I have several of these in production). ;WITH duplicateRemoval as ( SELECT [name] ,ROW_NUMBER() OVER(PARTITION BY [name] ORDER BY [name]) ranked from #myTable ORDER BY name ) DELETE FROM duplicateRemoval WHERE ranked > 1; Explanation : The CTE will grab all of

问题 I have some problem with my Java code. I'm supposed to use loops and not any other method. Say that my ArrayLis t contains of [Dog Cat Dog Dog Cat Dog Horse] My goal is also to remove the copies of Dog and Cat so my final results equals [Dog Cat Horse] public void removeDouble(){ int counter = 0; for (int i = 0 ; i < animals.size(); i++) { for (int j = 1+i; j < animals.size() ; j++) //don't start on the same word or you'll eliminate it. if ( animals.get(j).equals( animals.get(i) ) ) { animals

问题 I have some problem with my Java code. I'm supposed to use loops and not any other method. Say that my ArrayLis t contains of [Dog Cat Dog Dog Cat Dog Horse] My goal is also to remove the copies of Dog and Cat so my final results equals [Dog Cat Horse] public void removeDouble(){ int counter = 0; for (int i = 0 ; i < animals.size(); i++) { for (int j = 1+i; j < animals.size() ; j++) //don't start on the same word or you'll eliminate it. if ( animals.get(j).equals( animals.get(i) ) ) { animals

问题 I have some problem with my Java code. I'm supposed to use loops and not any other method. Say that my ArrayLis t contains of [Dog Cat Dog Dog Cat Dog Horse] My goal is also to remove the copies of Dog and Cat so my final results equals [Dog Cat Horse] public void removeDouble(){ int counter = 0; for (int i = 0 ; i < animals.size(); i++) { for (int j = 1+i; j < animals.size() ; j++) //don't start on the same word or you'll eliminate it. if ( animals.get(j).equals( animals.get(i) ) ) { animals

问题 There are some similar topics in stackoverflow, but still I didn't succeed to rename my duplicate rows: CREATE TABLE IF NOT EXISTS `products` ( `product_id` int(11) unsigned NOT NULL AUTO_INCREMENT, `product_code` varchar(32) NOT NULL, PRIMARY KEY (`product_id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=4 ; INSERT INTO `products` (`product_id`, `product_code`) VALUES (1, 'A'), (2, 'B'), (3, 'A'); Here first and third rows have same items. I just want to add a suffix like "Copy". And

问题 I have a Parents form embedded into another form Student containing the data of the parents of a student with an association of Many-one. StudentType.php //... ->add('responsible1', new ParentsType(),array('label' => 'Mother')) ->add('responsible2', new ParentsType(),array('label'=> 'Father')) Entity Parents //... /** * @ORM\OneToMany(targetEntity="Student", mappedBy="$responsible1") * @ORM\OneToMany(targetEntity="Student", mappedBy="$responsible2") */ private $students; //... public function

问题 Trying to create a predicate ( timePeriod/2 ) that calculates the time period between two dates for a specific fact. I've managed to do this by myself, but face issues when 'other answers' exist in the same list (i.e. easier to explain with examples). I have the following knowledge-base facts; popStar('Jackson',1987,1991). popStar('Jackson',1992,1996). popStar('Michaels',1996,2000). popStar('Newcastle',2000,2007). popStar('Bowie',2008,2010). And the following function, calculates the time

问题 i try to remove non-duplicate data and keep the duplicate data i've done some coding, but nothing happen, oh. it's error. lol this is my code. Sub mukjizat2() Dim desc As String Dim sapnbr As Variant Dim shortDesc As String X = 1 i = 2 desc = Worksheets("process").Cells(i, 3).Value sapnbr = Worksheets("process").Cells(i, 1).Value shortDesc = Worksheets("process").Cells(i, 2).Value Do While Worksheets("process").Cells(i, 1).Value <> "" If desc = Worksheets("process").Cells(i + 1, 3).Value <>

问题 Starting from this SO question. Example data.frame : df = read.table(text = 'ID Day Count Count_group 18 1933 6 15 33 1933 6 15 37 1933 6 15 18 1933 6 15 16 1933 6 15 11 1933 6 15 111 1932 5 9 34 1932 5 9 60 1932 5 9 88 1932 5 9 18 1932 5 9 33 1931 3 4 13 1931 3 4 56 1931 3 4 23 1930 1 1 6 1800 6 12 37 1800 6 12 98 1800 6 12 52 1800 6 12 18 1800 6 12 76 1800 6 12 55 1799 4 6 6 1799 4 6 52 1799 4 6 133 1799 4 6 112 1798 2 2 677 1798 2 2 778 888 4 8 111 888 4 8 88 888 4 8 10 888 4 8 37 887 2 4

问题 Starting from this SO question. Example data.frame : df = read.table(text = 'ID Day Count Count_group 18 1933 6 15 33 1933 6 15 37 1933 6 15 18 1933 6 15 16 1933 6 15 11 1933 6 15 111 1932 5 9 34 1932 5 9 60 1932 5 9 88 1932 5 9 18 1932 5 9 33 1931 3 4 13 1931 3 4 56 1931 3 4 23 1930 1 1 6 1800 6 12 37 1800 6 12 98 1800 6 12 52 1800 6 12 18 1800 6 12 76 1800 6 12 55 1799 4 6 6 1799 4 6 52 1799 4 6 133 1799 4 6 112 1798 2 2 677 1798 2 2 778 888 4 8 111 888 4 8 88 888 4 8 10 888 4 8 37 887 2 4