I am trying to merge a month's worth of daily CSV files without using ArcGIS. Each file has ~25,000 entries so this is a high data load project.
Sample data can be found here. Note that we are using the Prerun product.
Arc can handle it (using simple merge geoprocess tool), but we have to make this open source as it will be used to teach students who don't have access to ESRI software.
We tried a simple c# code but ran into the problem that some of the days have extra columns, which snafu'd our code.
Before we spend the time to make our code much more robust to handle the disparity in the products, I wanted to ask if there was a way to merge tables (CSV files) within QGIS? This would be the simplest methodology for the people we're trying to benefit.