MySQL: Simple way to toggle a value of an int field

Question

I know how to do this, but i think I\'ll overcomplicate it with double selects and so on.

How can you do this (example in pseudo-sql)

UPDATE some_table S         


        

Answer 1

Another option:

UPDATE some_table SET an_int_value = ABS(an_int_value - 1);

Answer 2

UPDATE some_table SET an_int_value = IF(an_int_value=1, 0, 1);

http://dev.mysql.com/doc/refman/5.1/en/control-flow-functions.html#function_if

Answer 3

For ENUM(0,1) fields you can use...

UPDATE table SET int_value=BINARY(int_value=1)