Diagram Door - mySQL 0 and 1

That is correct. * Is not a wild card meaning b any item that starts with door_sw. It only means “every member of this group”. You can only use * with a group and you must use a full group name.

in my case

grp_homebb01_persistence_mysql

means, the group’s value/state itself and

grp_homebb01_persistence_mysql*

the value/state of ALL members of this group?

items with a “special” strategy have to write down one by one with full name.

right?

From the Wiki:

< groupName >* - all members of this group will be persisted, but not the group itself.

So your assumption is correct.
However, your strategy only has everyChange in it. I’m pretty sure you’ll need to add everyUpdate so updates are written to DB.

i dont saw erveryUpdate before … i’ll try it.

Correct, or create a group fit that survival strategy and use * . This is what I recommend. It lets you control which Items are persisted with which strategy through group membership which lets you see in one place (items file) which Items are outdated and how.

yes, i am with you. i changed it to the groups right as you told me to do so.

everyUpdate is IMHO not a good option, it seemed that every item of this group (the most of my sitemap) triggers an update-event. so i got db-entries with 1,2,3 seconds delay, instead of one minute.

i believe, my best way is to seperate items with high freq. update(=change) events from low freq. updated items.