Question

我有三个表：tbl_Player，tbl_MatchDetails，tbl_MatchStat以及一些数据：

tbl_Player

CREATE TABLE [dbo].[tbl_Player](
    [PlayerID] [int] IDENTITY(1,1) NOT NULL,
    [Name] [varchar](50) NULL,
 CONSTRAINT [PK_tbl_Player] PRIMARY KEY CLUSTERED 
(
    [PlayerID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
SET IDENTITY_INSERT [dbo].[tbl_Player] ON
INSERT [dbo].[tbl_Player] ([PlayerID], [Name]) VALUES (1, N'L Messi')
INSERT [dbo].[tbl_Player] ([PlayerID], [Name]) VALUES (2, N'C Ronaldo')
INSERT [dbo].[tbl_Player] ([PlayerID], [Name]) VALUES (3, N'Neymar')
INSERT [dbo].[tbl_Player] ([PlayerID], [Name]) VALUES (4, N'Rooney')
INSERT [dbo].[tbl_Player] ([PlayerID], [Name]) VALUES (5, N'K Aguero')
INSERT [dbo].[tbl_Player] ([PlayerID], [Name]) VALUES (6, N'Gomez')
SET IDENTITY_INSERT [dbo].[tbl_Player] OFF

tbl_MatchDetails

CREATE TABLE [dbo].[tbl_MatchDetails](
    [MatchID] [int] IDENTITY(1,1) NOT NULL,
    [Tournament] [varchar](50) NULL,
    [TeamA] [varchar](50) NULL,
    [TeanB] [varchar](50) NULL,
 CONSTRAINT [PK_tbl_MatchDetails] PRIMARY KEY CLUSTERED 
(
    [MatchID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
SET IDENTITY_INSERT [dbo].[tbl_MatchDetails] ON
INSERT [dbo].[tbl_MatchDetails] ([MatchID], [Tournament], [TeamA], [TeanB]) VALUES (1, N'CL', N'Real', N'Barca')
INSERT [dbo].[tbl_MatchDetails] ([MatchID], [Tournament], [TeamA], [TeanB]) VALUES (2, N'CL', N'Barca', N'United')
INSERT [dbo].[tbl_MatchDetails] ([MatchID], [Tournament], [TeamA], [TeanB]) VALUES (3, N'League', N'Barca', N'Real')
INSERT [dbo].[tbl_MatchDetails] ([MatchID], [Tournament], [TeamA], [TeanB]) VALUES (4, N'CL', N'M City', N'Bayern')
INSERT [dbo].[tbl_MatchDetails] ([MatchID], [Tournament], [TeamA], [TeanB]) VALUES (5, N'League', N'Barca', N'Valencia')
INSERT [dbo].[tbl_MatchDetails] ([MatchID], [Tournament], [TeamA], [TeanB]) VALUES (6, N'League', N'Real', N'Betis')
SET IDENTITY_INSERT [dbo].[tbl_MatchDetails] OFF

tbl_MatchStat

CREATE TABLE [dbo].[tbl_MatchStat](
    [StatID] [int] IDENTITY(1,1) NOT NULL,
    [MatchID] [int] NULL,
    [PlayerID] [int] NULL,
    [Goals] [int] NULL,
    [Minutes] [int] NULL,
 CONSTRAINT [PK_tbl_MatchStat] PRIMARY KEY CLUSTERED 
(
    [StatID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET IDENTITY_INSERT [dbo].[tbl_MatchStat] ON
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (1, 1, 1, 3, 92)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (2, 1, 2, 1, 92)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (3, 2, 1, 2, 85)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (4, 2, 4, 2, 93)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (5, 3, 1, 1, 35)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (6, 3, 2, 0, 90)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (7, 4, 6, 2, 93)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (8, 4, 5, 0, 15)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (9, 5, 3, 2, 25)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (10, 5, 1, 4, 91)
INSERT [dbo].[tbl_MatchStat] ([StatID], [MatchID], [PlayerID], [Goals], [Minutes]) VALUES (11, 6, 2, 3, 88)
SET IDENTITY_INSERT [dbo].[tbl_MatchStat] OFF

根据这些数据，我希望有一个select语句，根据锦标赛给出每个玩家的摘要。例如，根据锦标赛'CL'选择的数据，查询结果可能看起来像

Name       MatchPlayed TotalGoals HighestScore Minutes Hattrick
L Messi              2          5            3     117        1
C Ronaldo            1          1            1      92        0
Rooney               1          2            2      93        0         
K Aguero             1          0            0      15        0
Gomez                1          2            2      93        0

Answer 1

尝试

SELECT p.Name, 
       COUNT(m.MatchID) MatchPlayed, 
       SUM(s.Goals) TotalGoals,
       MAX(s.Goals) HighestScore,
       SUM(s.Minutes) Minutes,
       SUM(CASE WHEN s.Goals >= 3 THEN 1 ELSE 0 END) Hattrick
  FROM tbl_MatchDetails m JOIN tbl_MatchStat s
    ON m.MatchID = s.MatchID JOIN tbl_Player p
    ON s.PlayerID = p.PlayerID
 WHERE m.Tournament = 'CL'
 GROUP BY p.Name

输出：

|      NAME | MATCHPLAYED | TOTALGOALS | HIGHESTSCORE | MINUTES | HATTRICK |
----------------------------------------------------------------------------
| C Ronaldo |           1 |          1 |            1 |      92 |        0 |
|     Gomez |           1 |          2 |            2 |      93 |        0 |
|  K Aguero |           1 |          0 |            0 |      15 |        0 |
|   L Messi |           2 |          5 |            3 |     177 |        1 |
|    Rooney |           1 |          2 |            2 |      93 |        0 |

这是 SQLFiddle 演示

stat报告组合来自3个表的数据 - 连接或子查询

1 个答案: