如何根据其他列中的值（对于同一行）更新表的所有行中的列？

I apologize in advance if SQL doesn't work this way, I mostly code in C++/C# and I don't have much experience in SQL. I basically want to iterate through each row of the table and change a column value based on the other columns. An example table might look like this:I apologize in advance if SQL doesn't work this