Marta's questions

I see that since I don't know which version of MySQL the group by forces to enter all the fields of the select. (this is configurable, but I have no option to change it). I don't understand why you have to put all the fields of the select in the group by, if I only want to group by the user id for example.

If someone is kind enough to explain (for fools, with apples) the reason for this, I would be eternally grateful... I'm looking on the internet, and I don't understand the reasons they give. They say they are good practices, but until recently it could be done without problems and now... :(

I've been trying to do this for several days and I can't. I have to say that when debugging my project, it does stop me at breakpoints, but in the version I had before (7.4) I could modify code and apply the changes. Now, I've changed my computer, and I have version 8.2, and I can't do the latter, neither by putting in the debug option Apply code changes after save (in "Compile on Save" mode only) nor with the little button for it, which is how it used to be. First: Where do I configure "Compile on Save" mode only in 8.2, I can't find it anywhere... Second: Has anyone had this problem, and managed to solve it?

Regards, and thank you very much! Martha