duplicates

问题 I'm using the Dedupe library to match person records to each other. My data includes name, date of birth, address, phone number and other personally identifying information. Here is my question: I always want to match two records with 100% confidence if they have a matching name and phone number (for example). Here is an example of some of my code: fields = [ {'field' : 'LAST_NM', 'variable name' : 'last_nm', 'type': 'String'}, {'field' : 'FRST_NM', 'variable name' : 'frst_nm', 'type':

问题 My original question with all the relevant context can be found here: Adding a multi-column primary key to a table with 40 million records I have a table with 40 million rows and no primary key. Before I add the primary key, I would like to check if the table has any duplicate entries. When I say duplicate entries, I don't just mean duplicate on particular columns. I mean duplicates on entire rows. I was told in my last question that I can do an EXISTS query to determine duplicates. How would

问题 (Mac) I've tried namespaces, include guards, pragma once, etc. Basically, this is the structure: CMakeLists.txt add_executable(Game Game/main.cpp Game/rtexture.cpp) Game/main.cpp #include "cleanup.h" //... cleanup(foobar); Game/rtexture.cpp #include "cleanup.h" //... cleanup(foobar); cleanup.h //various includes template<typename T, typename... Args> void cleanup(T *t, Args&&... args){ //Cleanup the first item in the list cleanup(t); //Recurse to clean up the remaining arguments cleanup(std:

问题 (postgresql) I was trying to COPY csv data into a table but I was getting duplicate key violation errors, and there's no way to tell COPY to ignore those, so following internet wisdom I tried adding this rule: CREATE OR REPLACE RULE ignore_duplicate_inserts AS ON INSERT TO mytable WHERE (EXISTS ( SELECT mytable.id FROM mytable WHERE mytable.id = new.id)) DO NOTHING; to circumvent the problem, but I still get those errors - any ideas why ? 回答1: Rules by default add things to the current action

问题 I'm having problems with a duplicate tab on Chrome (session's stuff) and I'd like to avoid the action of duplicating tabs (or lacking that close the duplicate one). I'm opening the tab as it was a popup, with no address bar, no status bar, and no nothing, just the window. There's no way to duplicate a tab (opened as a popup) in IE and Firefox (at least I havent found one), but in chrome is still possible. I also know I'm not able to programmatically check if there's an already open duplicated

问题 If I have query like this, how can I refer to values I have already given in update statement, so that I don't need to insert same data to query again? Example I would like to update col1 value with 'xxx', but now I need to enter 'xxx' again in duplicate statement. Is there anyway to refer those values in duplicate statement? INSERT INTO TABLENAME(col1, col2) VALUES (’xxx’, ‘yyy’) ON DUPLICATE KEY UPDATE col1 = ‘zzz’ 回答1: This should work and is a little more elegant: INSERT INTO TABLENAME

问题 I am encountering 'duplicate symbol' errors in Xcode 4.5.1 when I try to build a project after adding my own framework. I verified the framework files for duplicates and there are none. But when I add the framework to a project, it complains with these error. Please suggest.. duplicate symbol _NXArgc in: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk/usr/lib/crt1.3.1.o /Users/idcc/Test/MyFW/Products/MyTestFW.framework/MyTestFW duplicate

问题 I want manage SQL server error code in access form sample duplicate error from SQL server 回答1: In Access VBA, you need to use: On Error GoTo Error_Handler ' YOUR CODE HERE . . . Return_Label: Exit Function Error_Handler: 'What goes here depends on the data access model Resume Return_Label 回答2: You may have to retrieve the Errors collection of the Error object as described here. It shows this example code: Sub DescriptionX() Dim dbsTest As Database On Error GoTo ErrorHandler ' Intentionally

问题 This question already has answers here : How can I remove all duplicates so that NONE are left in a data frame? (2 answers) Closed 2 years ago . Suppose I have a data frame (lets call it df) that looks like this (below). I am trying to remove ALL duplicates in a given data frame based on a given column (df$car). options(stringsAsFactors=F) car <- c('car1', 'car2', 'car2', 'car3', 'car4', 'car4', 'car4', 'car5', 'car6', 'car6') location <- c(111,345,345,123,678,678,678,432,232,232) value <- c

问题 can someone explain me how to find duplicate elements in java: array {1,5,7,4,5,1,8,4,1} using only for, if or while/do while? Tnx in advance. Dacha 回答1: Before you insert an element in the array, check first the content of the array. If the inserting object is equal to any then do not proceed with the insert. Or maybe try this one: int[] arrayObject={1,5,7,4,5,1,8,4,1}; List<Integer> uniqueList=new LinkedList<>(); List<Integer> duplicateList=new LinkedList<>(); for(int i=0; i<arrayObject