06-20-2017, 11:36 AM
Hi Dan,
Thinking in a multi-user environment is possible create some mechanism for when I do update any line of my database, I can re-read the line of my database, before my update, and see if had changes any data since my last read?
Something like a incremental column that always that happening some update this value will be incremented. And then always before any update the system will read again and compare this control (incremental column) with my last control before update and if they are different then I know that had any changes and I abort my operation. Do you understood?
Sorry for my english, because I think in Portuguese when I write in English, really sorry.
Hugs
Thinking in a multi-user environment is possible create some mechanism for when I do update any line of my database, I can re-read the line of my database, before my update, and see if had changes any data since my last read?
Something like a incremental column that always that happening some update this value will be incremented. And then always before any update the system will read again and compare this control (incremental column) with my last control before update and if they are different then I know that had any changes and I abort my operation. Do you understood?
Sorry for my english, because I think in Portuguese when I write in English, really sorry.
Hugs