![]() You are using OS X and MAMP as a local server (although it should be relatively simple to move this lesson to another platform and server setup).This solution does make several assumptions: After looking at several different apps and approaches, I found an excellent solution that can be run in a single line in the Terminal of Mac OS X. Rebranding this site provided the opportunity to review my workflow processes, and database migration was one of the first problems I addressed. For years, my solution was to manually copy changes from one database to the other, which absorbed a significant amount of time. Sorry I forgot the source.One of the significant challenges of developing a site locally is the need to sync local database changes to a remote server, often repeatedly. **Someone on the internet suggested to rate the difficulty of a problem in the number of browser tabs you need to open in order to fix it. So I prefer it to Audit Trail options in MySQL. *Git forces you to not only document changes, but explain why those changes are done in a nice story. I am sure there are other ways to do this, but I am pretty happy of how it works! You can compare the two versions now, and let anyone in the project play with it by pushing it to a central repo (e.g. gitignore) with the lineĥ) And finally you can make another commit reflecting the changes ‘ git add DATABASE.sql‘ and ‘git commit’ with a nice commit message. ![]() Source(psw.R) # this is a way to avoid committing your password. In this example I manipulated data within R ( ) and want to append the resulting dataframe to an existing table. Rstudio provide a nice hook to git, so you just need to ‘ git init‘ the directory, ‘ git add DATABASE.sql‘ and ‘ git commit‘ the changes with a nice commit message.ģ) Connecting R to MYSQL server to update it: There are good tutorials on this, so I’ll be brief. #which makes version control lighter and more readable later on.Ģ) Put the backup under version control. #The -skip-extended-insert makes a INSERT for each row, #Yours may be in /usr/local/mysq/bin/mysqldump #instaled MySQL using MAMP (highly recommended for an easy set up #note that my mysqldump is located in applications folder because ![]() System("/Applications/MAMP/Library/bin/mysqldump -u USER -h HOSP_IP -pPASWORD -port=8889 -skip-extended-insert DATABASE > DATABASE.sql") #sorry beautiful 80 characters-max code lines) #Second, we make a mysqldump (has to be in one non broken line, System("pwd") #it should be the working directory. #first we can see which is our path on the shell/terminal But you can do it by calling the shell (aka Terminal) from R with the function system. One goal of the task is to be able to do everything within the same program (Rstudio) for simplicity, so the task implies connecting R to MySQL server via RMySQL, update the database, make a backup copy from R and commit changes.ġ) Running mysqldump from R to make an initial backup: RMySQL can’t (that I know) run the most commonly used backup mysqldump. I succeeded on that, but it was a 11 TAB problem**, so I though would be good post it here for others, and for my future self. I am trying to have better workflows to ensure data quality and two important things for me are first, scripting as much as posible the data manipulation process, and second, backing up the database we use under version control (e.g.
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