Thanks very much David~!!
It works on your way.
The way you said very clearly but I was trapped in another difficult so that took such a long time.
Very direct and clear solution , I've always wanted too messy
The problem trapped me again was that the File data in the Database Record model seems could not been carried with the Record model to Pass through some models (seems between Client-side Actions and Server-side Service) across flows. Sorry I can not explain in English too well. Examples:
The "Table Wizard" doesn't provid File Field Type so I manually add it.
I did this many times to add some other data type but only this time File Type it didn't work as I think.
It seems a temporary Record was Filled up with the data and then picked up Id from Primary Key, then update. Actually the File data simply did not transmitted to there.
After update the File Field of the database rocord was empty.
At first I did not know what happened and where the error occurred.
I find a example which database stored image field to learn from ie in "Example".
This is right:
After repeated tests I figured out a little.
This will bring the error:
Did the file field data couldnot been transmissioned between Common Actions and Server-side Service with the Record model?
Finally I found in the Save model of "Table Wizard" , it's OK by sending the File field into the service process solely.
David, Thank you for your help and I take up much of your time.
Best Wishes!
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