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How to Properly Set Variables (character_set_%) for Proper Cyrillic Leters Reading from MySQL in R

November 29, 2022 by Magenaut

I am experiencing the issue of unproper reading of cyrillic letters from MySQL table.

Categories MySQL, Q&A Tags character-encoding, collation, cyrillic, mysql, r Leave a comment

Scrape journal article title from staff web-page

November 29, 2022 by Magenaut

I would like to scrape the title and authors of journal articles from all staff-members’ official web-pages. e.g.

Categories MySQL, Q&A Tags html, r, web-scraping Leave a comment

How to make a click on R Leaflet state go to a url?

November 28, 2022 by Magenaut

I’d like to build a map where when a state is clicked, it will open a hyperlink url in a new tab. I’ve been searching around for answers and can’t quite get it to work for r leaflet. I believe I need to edit the json in the onRender but it seems I’m not doing it right.

Categories MySQL, Q&A Tags html, json, leaflet, r, url Leave a comment

How to upload file from a browser dialog using RSelenium

November 28, 2022 by Magenaut

I have the following URL which I want to post the form:

Categories MySQL, Q&A Tags html, r, rselenium, selenium, selenium-firefoxdriver Leave a comment

Loading data from a dataframe in R to multiple tables in MySQL with the same name but different schema name

November 26, 2022 by Magenaut

I have this df in R with various columns such as ID, Name, Prod, and other stuff which is not important. The only important thing is the IDs. In this df there are various rows with the same ID that has the same names as the schemas that I want to update in MySQL. Lets say this is the table:

Categories MySQL, Q&A Tags mysql, r Leave a comment

Loading Multiple Tables from Multiple Schemas from MySQL to R, and Merge all the Tables

November 25, 2022 by Magenaut

Before I begin I know that these questions exist:
Get an R dataframe with merged values from multiple MySQL tables and Best approach to combine multiple MySQL tables in R. But I can’t use them for my problem.

Categories MySQL, Q&A Tags mysql, r, sql Leave a comment

Problem with retrieving a table from Chinook dataset due to character

November 25, 2022 by Magenaut

I have created a database in MySQL with data from the Chinook dataset, which has fictitious information on customers that buy music.

Categories MySQL, Q&A Tags dbi, mysql, r Leave a comment

How can I summarize multiple string values by a column value in R?

November 25, 2022 by Magenaut

OK, so this question isn’t as simple as the title may sound. I’ve got a table that’s structued like this:

Categories MySQL, Q&A Tags data-manipulation, mysql, r Leave a comment

How to insert multiple rows into MySQL table (with auto increment) and skip duplicates?

November 24, 2022 by Magenaut

I have a MySQL table1 in which:

Categories MySQL, Q&A Tags mysql, r, sql Leave a comment

Issue in running sqldf command for comparing integers

November 24, 2022 by Magenaut

I am working on simple data like below:

Categories MySQL, Q&A Tags mysql, r, sqldf Leave a comment
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