... sequentially, in the order they are listed. So, each command will operate on the result of the previous command.
You can easily copy, paste, load and save both the source and the result texts.
This program is written in Lazarus (FreePascal). The only non-standard library used is Zeos, but the program can be easily adapted to use Lazarus' native database components.
This is free software, distributed under a CC BY-SA 4.0 Attribution-ShareAlike 4.0 International License.