mysql - Row versioning in MySQL

Question

I would like to include an integer version field in my table, auto-incrementing on each update made to a row. Is it possible to do this in MySQL?

Please note that I'm not talking about a TIMESTAMP, which is not reliable as two concurrent updates might happen during the same second.

Answer 1

是的。更普遍的问题称为缓慢变化的维度。

Answer 2

这样做的唯一方法（我能想到的）是一个（更新前）触发器，它会自动增加列值。