How to alter the boolean value in SQL Server select query?

Question

Basically I want to alter the boolean value selecting from the table:

e.g.:

SELECT otherColumns, not ysnPending FROM table

I need a column ysnPending = true if the value is false & false if the value is true.

Is there any function available to alter the Boolean value or I should use IIf or CASE...?

Answer 1

use CASE, or if the bit field is non-nullable you could just subtract from 1.

SELECT 
    otherColumns, 
    (1 - ysnPending) -- NOT ysnPending
FROM table 

(Using CASE might lead to more understandable code.)

If ysnPending is nullable, what behaviour do you assign to NOT?