where SQL QUERYの句

Question

then節の操作と等しくないように追加するには？例

@Sample varchar(50) 


Select * from table 
Where 
ISNULL(table.column1, '') = CASE WHEN @Sample = '1' THEN '500' 
           WHEN @Sample = '0' THEN '600' 
           ELSE (NOT EQUAL TO 500) 
          END 

Answer 1

については はCASE表現を取り除く：

select * from table 
where 
    (@Sample='1' and table.column1 = '500') or 
    (@Sample='0' and table.column1 = '600') or 
    (@Sample not in ('0','1') and COALESCE(table.column1,'') <> '500')