How do I create a conditional WHERE clause?

Question

I need to have a conditional where clause that operates as so:

Select *
From Table
If (@booleanResult)
Begin
  Where Column1 = \'value1\'
End
Else
Begin
  W         


        

Answer 1

To provide a shorter answer:

Select *
From Table
Where Column1 = 'value1' and
      coalesce(column2, '') = (case when @BooleanResults = 0 
                                    then 'value1' 
                                    else coalesce( column2, '')
                               end)