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Search found 1639 results on 66 pages for 'csv'.

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• Is it possible to remove a duplicate value from a datatable in c#?

  - by Pandiya Chendur

  I have a datatable with a column MobileNo.... My datatable has 150 rows and each row has MobileNo... Now how to check every MobileNo is unique by parsing all the datarows of the datatable in c#? EDIT: "This datatable is being created by reading a CSV file"

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• Is it possible to bulk load an NDB child Entity in GAE?

  - by hmacread

  At some point in the future I may need to bulk load migration data (i.e. from a CSV). Has anyone had exceptions raised doing the following? Also is there any change in behaviour if the ndb.put_multi() function is used? from google.appengine.ext import ndb while True: if not id: break id, name = read_csv_row(readline()) x = X(parent=ndb.Key('Y','static_id') x.id, x.name = id, name x.put() class X(ndb.Model): id = StringProperty() name = StringProperty() class Y(ndb.Model): pass def read_csv_row(line): """returns tuple"""

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• Reading a stream in C++

  - by Bobby

  I have the following code: ifstream initFile; initFile.open("D:\\InitTLM.csv"); if(initFile.is_open()) { // Process file } The file is not opening. The file does exist on the D: drive. Is there a way to find out exactly why this file cannot be found? Like an "errno"?

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• How to find crc32 of big files ?

  - by Arsheep

  The PHP's crc32 support string as input.And For a file , below code will work OFC. crc32(file_get_contents("myfile.CSV")); But if file goes huge (2 GB) it might raise out of memory Fatal error. So any way around to find checksum of huge files ?

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• mysql insert with auto-increment column

  - by czuroski

  Hello, I am trying to insert data into a mysql table from a csv file. I am using the infile sql command, but I am having trouble because the first column of the table is an id that is set as an auto increment field. what do I have to set my first column value to in order to get this to work, or can I do it at all? Thanks

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• is there a way to designate the line token delimiter in Perl's file reader?

  - by Dr.Dredel

  I'm reading a text file via CGI in, in perl, and noticing that when the file is saved in mac's textEdit the line separator is recognized, but when I upload a CSV that is exported straight from excel, they are not. I'm guessing it's a \n vs. \r issue, but it got me thinking that I don't know how to specify what I would like the line terminator token to be, if I didn't want the one it's looking for by default.

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• How can I implement incremental search on command line?

  - by florianbw

  I'd like to write small scripts which feature incremental search (find-as-you-type) on the command line. Use case: I have my mobile phone connected via USB, Using gammu --sendsms TEXT I can write text messages. I have the phonebook as CSV, and want to search-as-i-type on that. What's the easiest/best way to do it? It might be in bash/zsh/Perl/Python or any other scripting language.

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• MySQL LINES TERMINATED BY

  - by Brian

  What are the potential choises for LINES TERMINATED BY in MySQL. I have a CSV file that I am trying to upload and neither \r\n, \n, not \r work.

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• Extract dates from filename(C#3.0)

  - by Newbie

  I have a situation where I need to extract dates from the file names whose general pattern is [filename_]YYYYMMDD[.fileExtension] e.g. "xxx_20100326.xls" or x2v_20100326.csv The below program does the work //Number of charecter in the substring is set to 8 //since the length of YYYYMMDD is 8 public static string ExtractDatesFromFileNames(string fileName) { return fileName.Substring(fileName.IndexOf("_") + 1, 8); } Is there any better option of achieving the same? I am basically looking for standard practice. I am using C#3.0 and dotnet framework 3.5 Thanks

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• are there any useful datasets available on the web for data mining?

  - by niko

  Hi, Does anyone know any good resource where example (real) data can be downloaded for experimenting statistics and machine learning techniques such as decision trees etc? Currently I am studying machine learning techniques and it would be very helpful to have real data for evaluating the accuracy of various tools. If anyone knows any good resource (perhaps csv, xls files or any other format) I would be very thankful for a suggestion.

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• How NOT to skip BOM info (FF FE) when using fread or ifstream?

  - by al_lea

  I'm trying to use fread/ifstream to read the first 2 bytes of a .csv with BOM info. But following code always skips the first two bytes (which are 'FF FE'): ifstream is; is.open (fn, ios::binary ); char buf[2]; is.read(buf, 2); is.close(); using FILE*/fread does no better.

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• How do I see the results of unique records added after adding records to mysql

  - by billy

  I'm a PHP noob. I have a database that I will update weekly with a CSV. So far I've managed to upload the file to the server, open the file with PHP, and insert the data in my table. Now I want to return the unique records that were added (on screen or in a file). How do I do this?

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• Data dump of Hibernate-based application

  - by Max

  Is there some tool for do dump data to some format. May be XML, JSON, CSV etc for using it in other application(may be with other DB engine)

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• How to Change SQL Server column names in code

  - by Kumar

  I have a table with 600+ columns imported from a csv with special chars % _ - in the column names, is there a way to change the column names to remove these special chars ? the code can be tsql or tsql

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• Database web application

  - by Watergaite

  How would i go about creating a php application for my web page that can extract data from my database (i currently get the data in a CSV file). id also like the user to be able to filter the data by certain parameters. can u help

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• Scala Unit type

  - by portoalet

  I use opencsv to parse csv files, and my code is while( (line = reader.readNext()) != null ) { .... } I got a compiler warning saying: comparing values of types Unit and Null using `!=' will always yield true [warn] while( (aLine = reader.readNext()) != null ) { How should I do the while loop?

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• How do I use comma-separated-values recived from a URL query in Objective-c?

  - by chiemekailo

  How do I use comma-separated-values recived from a URL query in Objective-c? when I query the URL I get csv such as ("OMRUAH=X",20.741,"3/16/2010","1:52pm",20.7226,20.7594). How do I capture and use this for my application?

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• Not knowing a type before deserializing

  - by Paul

  Is it possible to deserialize (c#) a piece of xml, csv, json (whatever it is), and not know it's type? But be given back an object (which ultimately is the correct type)?

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• [Linux] Incremental search on command line?

  - by florianbw

  I'd like to write small scripts which feature incremental search (find-as-you-type) on the command line. Use case: I have my mobile phone connected via USB, Using gammu --sendsms TEXT I can write text messages. I have the phonebook as CSV, and want to search-as-i-type on that. What's the easiest/best way to do it? It might be in bash/zsh/perl/python or any other scripting language. Thanks!

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• Using rowDiffs() to calculate difference in values in matrix

  - by user1723765

  I'm using the rowDiffs() command to calculate the step by step difference in 116 rows in a matrix. I get the following error: Error in r[i1] - r[-length(r):-(length(r) - lag + 1L)] : non-numeric argument to binary operator I have no idea why this is happening. I could take the diff() separately for each row and it would work. Any ideas? Here's the data: https://dl.dropbox.com/u/22681355/data.csv Code: a=rowDiffs(data)

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• Script to parse emails for attachments

  - by Swanny

  I am looking for a way to monitor a Linux mbox email account, when an email arrives I would like to download an attachment from the email and save the attachment (CSV file) so that it may be used by a PHP script. What would be the best way of going about this? I have looked at PHP's IMAP functions but this does not appear to be the most appropriate method when a simple bash script may be all that is required?

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• methods of joining 2 tables without using JOIN or SELECT more than one distinct table in the query

  - by GB_J

  Is there a way of joining results from 2 tables without using JOIN or SELECT from more than one table? The reason being the database im working with requires queries that only contain SELECT, FROM, and WHERE clauses containing only one distinct table. I do, however, need information from other tables for the project i'm working on. More info: the querier returns the query results in a .csv format, is there something we can manipulate there?

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• What kind of database to use in C#

  - by Chris

  I'm writing a program in C# that will need to store a few Data Tables on the user's computer and load them back when he restarts the program: Up to about 10000 records consisting of text and integers. I don't want to use a CSV file, and I had some trouble with SQLite. Are there any other good options to try?

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• remove the content in directory and subdirectory hierarichally with out distroy the directory structure

  - by user3713876

  In shell script, I want to clear only text files and log files in the following structure with out removing the directory as well as subdirectories | |------bar/ | |---file1.txt |---file2.txt | |---subdir1/ | |---file1.log | |---file2.log | |---subdir2/ |---image1.log |---image2.log I am using rm -rf /bar/* so I am getting the result as follows. |------bar/ but I want the output like following | |------bar/ | | | | |---subdir1/ | | | |---subdir2/ I want to remove only text files or log files or csv with out removing the directory and the subdirectories

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• What's the easiest way to convert latitude and longitude to double values

  - by Nick R

  I've got a CSV file containing latitude and longitude values, such as: "25°36'55.57""E","45°39'12.52""N" Anyone have a quick and simple piece of C# code to convert this to double values? Thanks

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