TSQL - How to use a case statement for 2 columns?

Question

I want to do a case on the result of 2 columns. How do I do this?

e.g.:

SELECT CASE amount=100 AND DATE IS NOT NULL WHEN 0 THEN 'Something' ELSE ''

Something like that?

Answer 1

select case
    when amount = 100 and date is not null then 'something'
    else 'something else'
    end

This is a "searched case expression" (see MSDN):

    CASE
      WHEN Boolean_expression THEN result_expression [ ...n ] 
      [ ELSE else_result_expression ]  END

Answer 2

select someColumnName,
       case 
         when amount = 100  AND someothercondition then 'XXX'
         when amount = 1000  AND anothercondition then 'YYY'
         else 'WWW' 
       end as "MyColumnName"
from myTable

Answer 3

select 
case 
    when 
        amount = 100 
        and date is not null    
    then 
        '0'
    else 
        'something else'
end