[SOLVED] UPDATE Database Fields

I can imagine that the solution is not that difficult. But I'm still not on it.
Please describe to me in detail how CB makes changes in the profile, if I change the language or time zone. CB changes the data in the user-table of Joomla. That's exactly what I need - not in the user table, but in a different table, which is called #__person.
Since I can nowhere find a detailed documentation about Auto Actions, I need a step by step instructions.
I also have the problem that I do not know if I should somehow connect it with fields.
Excuse me, but I've only been working a short time with CB. For this reason, I have a pro-membership, because I knew that it is difficult at first.

I've explained to you how to do this twice now, I will not repeat that same explanation again; please read my previous replies. The user parameters field is a CB field, it doesn't work off a trigger; it's a field designed to display and process certain data and I suppose you could create a new fieldtype plugin (see existing fieldtype plugins such as the Gravatar or Video incubator projects). Another example as follows.

Type: Query
Triggers: onAfterUserUpdate
User: Automatic
Access: Everybody
Query:

Great, I've done. Thank you.
Now I would like to do a simple SELECT query with "Auto Actions". The output field is cb_positionfrontend and intended only to illustrate the result when somebody read the profile.

Regards
Christian

To do that you can use incubator project CB Query Field. You supply a SELECT query and it displays the results as a field.

OK, I've already tried. However, I do not get a result if I use global variables, such as [userid]:

[userid] is not a valid substitution. Please see the below example.