Bit-flipping operations in T-SQL

Question

I have a bitmasked int field in my database. Usually I manage it through C# code, but now I need to flip a bit in the mask using T-SQL

How do I accomplish the follow

Answer 1

TSql Bitwise operators can be found here and good article on how to use them is here

Answer 2

Use XOR:

SELECT value ^ 256

So in your case, SELECT 143 ^ 256 will indeed return 399. If you want to pass in the exponent as well:

SELECT value ^ POWER(2, power)