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The format for the tick data is like this:

Date/Time	Price
2018/08/01 00:00:00.070	111.832
2018/08/01 00:00:00.078	111.831

Is there any way to split a large csv file containing an entire month of price data into smaller files containing 30 minutes of price data?

If you have used LoopDropSharp then you will love Maize. Improved error handling, faster performance, intuitive interface, and yes, all data is logged to a csv file to use in notepad or excel.

I juat finished python script that scraping data from amazon egypt based on keywords then save data on csv file with product name ,price and review

Power Query Problem - Getting data from CSV placed in Sharepoint. Trying to hide first 3 rows and then promoting headers. How can I ensure the file name does not become the header

Is there a way to open a csv file and take data from certain columns?

How to generate CSV/XLS file from DATABASE DATA (MySQL) using PDO ?

Hey guys. I have trouble generating a spreadsheet from MySQL database using PDO.
Fatal error: Uncaught TypeError: fputcsv(): Argument #1 ($stream) must be of type resource, bool given in C:\xampp\htdocs\Projet Web\controller\FactureC.php

Line where the error occured : fputcsv($data, $csv_fields);
The problem is that the excel sheet is filled with the error code instead of the data.

Any help is appreciated.

function excel() { try { $db = config::getConnexion(); $sql = "SELECT * FROM facture"; $query = $db->prepare($sql); $query->execute(); $filelocation = 'Downloads/'; $filename = 'Factures.csv'; $file_export = $filelocation . $filename; header('Content-Type: text/csv; charset=utf-8; encoding=UTF-8'); header("Cache-Control: cache, must-revalidate"); header("Pragma: public"); header('Content-Disposition: attachment;filename='.$filename.''); $data = fopen($file_export, 'w'); $csv_fields = array(); $csv_fields[] = 'numFacture'; $csv_fields[] = 'dateFacture'; $csv_fields[] = 'montant'; fputcsv($data, $csv_fields); while ($row = $query->fetch()) { fputcsv($data, $row); } } catch (Exception $e) { $e->getMessage(); } }

Hello. Does anyone know how to import data from a .csv file to make a choropleth map

Hello. I am a complete newbie to QGIS working on a municipal map of Massachusetts.
Thanks to MassGist I was able to get a good map but I am unable to make anything from it except for the data already on the file (which is just area and population). Is there any way to add data using an excel/.csv file to add it to the map?
I tried the method described here using this sample spreadsheet (the TOWN_ID was included in the map itself) and it won't register when I go to set up layer symbology. Is there something additionally that I need to add?
Thank you for all help.

Big data, CSV file exploration. How do you do it? Here's my way

Hey guys, looking for some smart minds to collaborate on data exploration.
Currently I work in relatively large data sets. Anywhere from 100k rows to 1m+ records. I use Python to ETL and do some python magic. When I am checking my script performance, I always open the CSV into the excel software body to filter it and see where some possible errors are.
This is a good way for me because I can visually see the entire dataset and filter down on 'Blank' values to see what my merges aren't picking up on. I am now finding that the CSV files get super laggy on my machine and sometimes grey me out from exploring the dataset.
What are some methods you guys use to do this sort of thing? Is there a more robust way or is this pretty standard?

Hello, any one could possibly have an idea why some commands run and give different results when performing code on a data from CSV file and xlsx file type?. For example “cSplit” command splits csv files by columns, while the same command split xlsx files by rows.

Could somebody please, please guide on how to simply read the contents of a locally stored CSV file and display said data on a page using Next JS

I have tried so many 'solutions' now and am just close to giving up. I have tried the getserversideprops approach of fetching the file and iterating through each row. However, I get this ({"props":{"pageProps":{"
statusCode":404}}'
) error.
I tried using useCSV and for some unknown reason it simply resulted in an error every given time.
I have tried the simple JS approach but the syntax seems to be broken from tutorials when I attempt to use it in Next.
Is there an easy way to do this at all? I just want the option to read from CSVs on my application. I want people to be able to upload CSV data, and in turn parse that data to be displayed/stored.

Text Magic plugin to create multiple texts for your design from a template, variables, and data loaded from a csv file

Beginner issu in R : ERROR trying to import data from csv file using read.csv

Script input:
Customer<-read.csv("file address",header=TRUE)
Error in console
Error in file(file, "rt") : cannot open the connection
In addition: Warning message:
In file(file, "rt") :
cannot open file 'fileaddress': Permission denied
File is in the wd , logged as admin and admin autorisation given changed the \ to / as recommanded in some online posts ... reinstalled apps
I am lost .. I just started learning and need to use the imported file to continue :(
----------------------------------------------------------------------------
EDIT Solution found: just needed to enter "NameOfFile.csv" instead of "file address" simple but would'nt have know without help.. thank you

I just finished a python project that scraping that collecting data from amazon egypt and save data on csv file with product name ,price and review

Help looking up data in large CSV file.

There is a big data transfer happening in couple weeks and I need to ensure that this transfer includes items in my list. They will provide a file with 8 million rows. I’ll need to compare that file with my list of approximately 400 rows.
Big file has data I need in in column A and B My file has data in Column A. I need to lookup the Column A data in my file and find the value in Column B of Big file. I hope that makes sense.
I can do a vlookup/Match. But since the file is so large I don’t know how to go about it. Do you have any suggestions?
Solution- Power Query worked for me. I had to change the Number fields to Text to get exact match.

how do I generate a pdf of the newly created CSV file automatically as soon as I input data from the user ?

I want to make a program "Marksheet Generater" , in which as soon as the user inputs all the details of the student, it converts it into an CSV file and then automatically generating a pdf .
I m stuck at the pdf generating part , please help me converting that CSV file into an pdf automatically.

Copy csv file data from sftp into sql server

Hi I have a file that gets dumped from sap background job every 15 mins. I am looking to implement a solution which will actively look for file modified date of csv and triggers copy to sql server right away? I looked up dbatools module which looks promising for copy data however this file is in sftp a Unix server. Is this doable if so please provide your suggestions.
Thanks

Save EEG data and timestamp in a csv file

Hi, I have collected real time EEG data and timestamp in separate arrays. May I know how can I save it into a csv file? Thank you.
Here are the arrays that is used to store the data and timestamp:
data = zeros(1,512);
t = datetime(zeros(1,512), 0, 0);
t.Format = 'dd-MM-yyyy HH:mm:ss.SSS';

Power Query Append Data from overwritten CSV File

I have a CSV file that is refreshed periodically and used as a data source in Power Query. I normally have to change the settings of the export file to be a full export from its source system just for this excel import.
Is there a way to append this to data already collected from the same file?
For example.
Day 1 - Rows 1, 2, 3, 4 are in the CSV. Power Query reads this export.CSV and loads them to excel.
Day 2 - Rows 5, 6, 7, 8, 9, 10 are in the CSV. Power Query reads the same export.CSV in the same file location and loads them to excel. Excel now has rows 1-10
Hope that makes sense and any help is appreciated, even to confirm if this is not possible.

export probe data into csv file at every timestep on star ccm+

Do CSV files retain data type? PgAdmin won't run import.

I have a CSV file which was generated from Pandas, PgAdmin runs into an error on the very first line of the index, stating "ERROR: invalid input syntax for type integer: "Index"
The index are definitely non-null numbers ranging from 1 to some 16 thousand. But perhaps somewhere in the process I cast them into strings and thus this is raising the error? I have no way to check since my python file was lost lol.

How to Import CSV File into PostGre SQL Server, with inferred data types?

I have a single CSV file, and every source online wants that I manually type in the column name and data type to create the table.
I have a food nutrition csv file that has 58 columns, so manually writing down the column names and data types seems offensively inefficient.
I tried doing it via PgAdmin, but it seems like I have to insert the column names one by one there too.
Is there a way to add the csv file and corresponding column names automatically, with 'inferred' data types?

How to build a Genie data app with a CSV file uploader

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SQ Tick Data Downloader quick demo

Tick Data Downloader downloads real historical tick data from Dukascopy. SQ Tick Data Downloader2 is developed by StrategyQuant Com Ltd.. Read the full revie...