问题
I don't know if this is possible but I'll explain what I need.
What I've got: - Table1: A users table - Table2: A table which contains items definitions - Table3: A table which stores for each user, amounts of items (defined in previous table)
With this tables structure, what I need to achieve is that when I add a row in Table2 (items definitions), automatically Table3 (users items) updates according to Table2 columns.
Example:
If I deleted a row in Table2, this would be the action:
What's the best way to do this?
来源：https://stackoverflow.com/questions/33837528/mysql-tables-column-inheritance-dynamically