How to Write to a JDBC Database with Google Apps Script: My Adventure with a Pesky Character Limit

I recently faced a frustrating issue when writing data to a CloudSQL database with the JDBC class in Apps Script. I kept getting the following error:

Exception: Argument too large: SQL

I also observed that it only happened when my SQL query reached a certain length. I considered breaking it down into multiple queries, but I was still puzzled 🤔 because I was only sending a few dozen kilobytes of data.

Now, the thing is, the official documentation could be more helpful; even though the solution is there, it needs to be better explained. So, I turned to StackOverflow. There was a discussion on this exact topic, but to my surprise, I was still waiting for an answer. Until, well, I wrote it 😉

Source: How to Write to a JDBC Database with Google Apps Script: My Adventure with a Pesky Character Limit