sql service (case when then else end ..... group by)

1.

原表: 
courseid coursename score 
------------------------------------- 
1 java 70 
2 oracle 90 
3 xml 40 
4 jsp 30 
5 servlet 80 
------------------------------------- 
为了便于阅读, 查询此表后的结果显式如下( 及格分数为60): 
courseid coursename score mark 
--------------------------------------------------- 
1 java 70 pass 
2 oracle 90 pass 
3 xml 40 fail 
4 jsp 30 fail 
5 servlet 80 pass 
--------------------------------------------------- 
写出此查询语句

 USE T4st

 GO
 IF(EXISTS(SELECT * FROM sysobjects WHERE name ='courseTes'))
 DROP TABLE courseTes
 GO

 CREATE TABLE courseTes
 (
    courseid INT NOT NULL PRIMARY KEY IDENTITY,
    coursename NVARCHAR(50) NOT NULL,
    score INT NOT NULL
 )

 INSERT dbo.courseTes
         ( coursename, score )
 VALUES  ( N'java', -- coursename - nvarchar(50)
           N''  -- score - int
           )
 INSERT dbo.courseTes
         ( coursename, score )
 VALUES  ( N'oracle', -- coursename - nvarchar(50)
           N''  -- score - int
           )
 INSERT dbo.courseTes
         ( coursename, score )
 VALUES  ( N'xml', -- coursename - nvarchar(50)
           N''  -- score - int
           )
 INSERT dbo.courseTes
         ( coursename, score )
 VALUES  ( N'jsp', -- coursename - nvarchar(50)
           N''  -- score - int
           )
 INSERT dbo.courseTes
         ( coursename, score )
 VALUES  ( N'servlet', -- coursename - nvarchar(50)
           N''  -- score - int
           )
 SELECT * FROM courseTes

 SELECT t.courseid,t.coursename,t.score,
 (
    CASE
    WHEN t.score > 60 THEN 'pass'
    ELSE 'fail'
    END
 )
 AS mark
 FROM courseTes AS t

运行结果如下：

2.

表内容：
2005-05-09 胜
2005-05-09 胜
2005-05-09 负
2005-05-09 负
2005-05-10 胜
2005-05-10 负
2005-05-10 负

如果要生成下列结果, 该如何写sql语句?

时间          胜    负
2005-05-09  2     2
2005-05-10  1     2

SQL语句

 USE T4st

 GO
 IF(EXISTS(SELECT * FROM sysobjects WHERE name ='Score'))
 DROP TABLE Score
 GO

 CREATE TABLE Score
 (
    TimeId NVARCHAR(50) NOT NULL,
    SuccessOrFail NVARCHAR(50) NOT NULL,
 )

 INSERT Score
        (TimeId,SuccessOrFail)
 VALUES (
         N'2005-05-09',
         N'胜'
         )
 INSERT Score
        (TimeId,SuccessOrFail)
 VALUES (
         N'2005-05-09',
         N'胜'
         )
 INSERT Score
        (TimeId,SuccessOrFail)
 VALUES (
         N'2005-05-09',
         N'负'
         )
 INSERT Score
        (TimeId,SuccessOrFail)
 VALUES (
         N'2005-05-09',
         N'负'
         )
 INSERT Score
        (TimeId,SuccessOrFail)
 VALUES (
         N'2005-05-10',
         N'胜'
         )
 INSERT Score
        (TimeId,SuccessOrFail)
 VALUES (
         N'2005-05-10',
         N'负'
         )
 INSERT Score
        (TimeId,SuccessOrFail)
 VALUES (
         N'2005-05-10',
         N'负'
         )

 SELECT * FROM Score

 SELECT s.TimeId AS '时间',
 SUM(
   CASE
   WHEN s.SuccessOrFail ='胜' THEN 1
   ELSE 0
   END
 ) AS '胜',
 SUM(
   CASE
   WHEN s.SuccessOrFail ='负' THEN 1
   ELSE 0
   END
 ) AS '负'
 FROM Score AS s GROUP BY s.TimeId

运行结果如下：