select  ID,Username,namer=(case when(score<='50')    then '實習'
 
                                when(score>'50'  and  score<='500' )   then '赤腳醫生'    
 
                                when(score>'500'  and score<='1000' )   then '村衛生員' 
 
                                when(score>'
 
1000'  and score<='1500' )   then '鄉衛生員' 
 
                                when(score>'1500'  and score<='2000' )   then '鎮衛生員'
 
                                when(score>'2000'  and score<='3000' )   then '醫師'
 
                                when(score>'3000'  and score<='5000' )   then '
 
主治醫師'
 
                                when(score>'5000'  and score<='10000' )   then '副主任醫師'
 
                                when(score>'10000'  and score<='20000' )   then '主任醫師'
 
                                when(score>'20000'  and score<='50000' )   then '健康大使'
 
                                else
 
   '健康大使'  end )FROM  jk01_YiWen_Question  
         WHERE  UserID =  dbo.jk01_Member.ID)  as  questionnum 

例子來源於:SQL利用Case When Then多條件判斷SQL 語句