2)比赛项目->比赛类别
3)比赛类别->比赛主管
候选码:运动员编号+比赛项目
2、从第二个函数依赖中看出,有部分依赖,所有不是2NF
分解成2NF:
R1(运动员编号,比赛项目,成绩)
R2(比赛项目,比赛类别,比赛主管)
3、
R2中有传递依赖故不是3NF,R1已经是3NF
R2分解成:
R21(比赛项目,比赛类别)
R22(比赛类别,比赛主管)
下面的脚本已经测试过了,可以使用,注意修改下数据库名和所有者其实你可以通过图形化工具创建表,然后在表上右键-创建存储过程-Create就可以得到脚本了
创建表的脚本
USE [PE]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[AthleteBasicInformation](
[AthleteID] [char](8) COLLATE Chinese_PRC_CI_AS NOT NULL,
[TeamID] [int] NOT NULL,
[Name] [nvarchar](20) COLLATE Chinese_PRC_CI_AS NULL,
[Sex] [char](2) COLLATE Chinese_PRC_CI_AS NULL,
[Age] [int] NULL,
[Profession] [char](10) COLLATE Chinese_PRC_CI_AS NOT NULL,
CONSTRAINT [PK_AthleteBasicInformation] PRIMARY KEY CLUSTERED
(
[AthleteID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
USE [a]
GO
ALTER TABLE [dbo].[AthleteBasicInformation] WITH CHECK ADD CONSTRAINT [sage_ch] CHECK (([age]>(18)))
创建视图的脚本
USE [a]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE VIEW [dbo].[View_SelectMaleGymnast]
AS
SELECT AthleteID, TeamID, Name, Sex, Age, Profession
FROM dbo.AthleteBasicInformation
WHERE (Sex = '1') AND (Profession = '体 *** ')
GO
EXEC sys.sp_addextendedproperty @name=N'MS_DiagramPane1', @value=N'[0E232FF0-B466-11cf-A24F-00AA00A3EFFF, 1.00]
Begin DesignProperties =
Begin PaneConfigurations =
Begin PaneConfiguration = 0
NumPanes = 4
Configuration = "(H (1[40] 4[20] 2[20] 3) )"
End
Begin PaneConfiguration = 1
NumPanes = 3
Configuration = "(H (1 [50] 4 [25] 3))"
End
Begin PaneConfiguration = 2
NumPanes = 3
Configuration = "(H (1 [50] 2 [25] 3))"
End
Begin PaneConfiguration = 3
NumPanes = 3
Configuration = "(H (4 [30] 2 [40] 3))"
End
Begin PaneConfiguration = 4
NumPanes = 2
Configuration = "(H (1 [56] 3))"
End
Begin PaneConfiguration = 5
NumPanes = 2
Configuration = "(H (2 [66] 3))"
End
Begin PaneConfiguration = 6
NumPanes = 2
Configuration = "(H (4 [50] 3))"
End
Begin PaneConfiguration = 7
NumPanes = 1
Configuration = "(V (3))"
End
Begin PaneConfiguration = 8
NumPanes = 3
Configuration = "(H (1[56] 4[18] 2) )"
End
Begin PaneConfiguration = 9
NumPanes = 2
Configuration = "(H (1 [75] 4))"
End
Begin PaneConfiguration = 10
NumPanes = 2
Configuration = "(H (1[66] 2) )"
End
Begin PaneConfiguration = 11
NumPanes = 2
Configuration = "(H (4 [60] 2))"
End
Begin PaneConfiguration = 12
NumPanes = 1
Configuration = "(H (1) )"
End
Begin PaneConfiguration = 13
NumPanes = 1
Configuration = "(V (4))"
End
Begin PaneConfiguration = 14
NumPanes = 1
Configuration = "(V (2))"
End
ActivePaneConfig = 0
End
Begin DiagramPane =
Begin Origin =
Top = 0
Left = 0
End
Begin Tables =
Begin Table = "AthleteBasicInformation"
Begin Extent =
Top = 6
Left = 38
Bottom = 121
Right = 169
End
DisplayFlags = 280
TopColumn = 0
End
End
End
Begin SQLPane =
End
Begin DataPane =
Begin ParameterDefaults = ""
End
End
Begin CriteriaPane =
Begin ColumnWidths = 11
Column = 1440
Alias = 900
Table = 1170
Output = 720
Append = 1400
NewValue = 1170
SortType = 1350
SortOrder = 1410
GroupBy = 1350
Filter = 1350
Or = 1350
Or = 1350
Or = 1350
End
End
End
' ,@level0type=N'SCHEMA', @level0name=N'dbo', @level1type=N'VIEW', @level1name=N'View_SelectMaleGymnast'
GO
EXEC sys.sp_addextendedproperty @name=N'MS_DiagramPaneCount', @value=1 ,@level0type=N'SCHEMA', @level0name=N'dbo', @level1type=N'VIEW', @level1name=N'View_SelectMaleGymnast'
在体育运动训练中,影响运动员成绩的因素十分复杂,传统以经验为依据的体育训练模式针对性、专业化及科学性偏低,可能导致训练内容与运动员身体机能的提升需求脱节,甚至因运动负荷过大造成运动员身体损伤。计算机技术具有强大的数据收集及分析能力,可以用作体育运动训练的“辅助工具”,通过其多元化功能为体育运动训练提供决策支持,从而提升体育运动训练水平。
一,计算机技术在训练信息整合中的应用
虽然运动员在体育运动训练过程中身体素质、运动技能等方面具有一定的相似性,但参与体育运动训练的内在动因、心理素质、抗压能力等方面具有较大的差异性。由前几部分的论述可知,体育运动训练是一项集运动技能、心理能力、运动智能于一身的综合性活动,除生理层面的体能、运动技能之外,运动员心理素质、对待体育运动训练的态度等都会影响其训练效果。这就需要教练员根据不同运动员的生理基础、性格、兴趣爱好、特长、多样化动因等为其提供针对性、差异化的体育运动训练内容及方法。
二, 计算机技术在训练计划制定中的应用
体育运动训练计划是整个体育运动训练过程的指导方针,计划的科学性、合理性及可行性将直接影响体育运动训练效果。在应用计算机技术构建“运动员训练信息数据库”的基础上进一步借助计算机技术架构运动员体能及训练效果评价指标体系,将数据库内与运动员身体素质、训练效果相关的数据,如耐力、速度、柔韧性等录入到训练技能评价模型中,能够全面测定、定量评价运动员训练效果,自动化呈现体育运动训练中需要改进的方面,如训练负荷不足、针对运动员下肢耐力的训练内容不完善等,教练员以此为依据,根据不同运动员的评价结果规划好训练内容,可以为计划的编制奠定坚实、有力的基础。
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