C# 如何显示该测验引擎每月和每年的参与者总数和测验次数?
我正在开发一个简单的web应用程序,为用户提供测验。由于我是ASP.NET世界的新手,我将在ASP.NET网站上学习如何构建测验引擎视频系列。我的数据库设计与这些视频中使用的设计类似。 这是: [^] 我一切正常,但我现在想开发一个查询,帮助我向管理员显示统计信息,显示:C# 如何显示该测验引擎每月和每年的参与者总数和测验次数?,c#,asp.net,sql-server,sql-server-2008-r2,C#,Asp.net,Sql Server,Sql Server 2008 R2,我正在开发一个简单的web应用程序,为用户提供测验。由于我是ASP.NET世界的新手,我将在ASP.NET网站上学习如何构建测验引擎视频系列。我的数据库设计与这些视频中使用的设计类似。 这是: [^] 我一切正常,但我现在想开发一个查询,帮助我向管理员显示统计信息,显示: 每个月的参与者总数和参加的测验 每年的参与者总数和参加的测验 系统中的测验总数 为了澄清最后一点,我希望管理员看到以下内容: 参与者的月数#参加测验的月数# 11月15日至6日 十月十日至九日 另一个例子: 参与者年份#参加测
CREATE TABLE [dbo].[Quiz](
[QuizID] [int] IDENTITY(1,1) NOT NULL,
[Title] [varchar](max) NOT NULL,
[Description] [varchar](max) NULL,
CONSTRAINT [PK_Quiz] PRIMARY KEY CLUSTERED
(
[QuizID] 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].[Quiz] ON
INSERT [dbo].[Quiz] ([QuizID], [Title], [Description]) VALUES (6, N'Safety', N'General Safety Test')
INSERT [dbo].[Quiz] ([QuizID], [Title], [Description]) VALUES (7, N'my title', N'my description')
INSERT [dbo].[Quiz] ([QuizID], [Title], [Description]) VALUES (9, N'General Safety Quiz2', N'Testing')
INSERT [dbo].[Quiz] ([QuizID], [Title], [Description]) VALUES (10, N'General Safety Quiz3', N'Testing #2')
SET IDENTITY_INSERT [dbo].[Quiz] OFF
/****** Object: Table [dbo].[Question] Script Date: 11/17/2011 00:44:38 ******/
CREATE TABLE [dbo].[Question](
[QuestionID] [int] IDENTITY(1,1) NOT NULL,
[Question] [varchar](max) NOT NULL,
[Answer1] [varchar](max) NOT NULL,
[Answer2] [varchar](max) NOT NULL,
[Answer3] [varchar](max) NOT NULL,
[Answer4] [varchar](max) NOT NULL,
[CorrectAnswer] [tinyint] NOT NULL,
[AnswerExplanation] [varchar](max) NULL,
[QuestionOrder] [tinyint] NOT NULL,
[QuizID] [int] NOT NULL,
CONSTRAINT [PK_Question] PRIMARY KEY CLUSTERED
(
[QuestionID] 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].[Question] ON
INSERT [dbo].[Question] ([QuestionID], [Question], [Answer1], [Answer2], [Answer3], [Answer4], [CorrectAnswer], [AnswerExplanation], [QuestionOrder], [QuizID]) VALUES (4, N'What is your name?', N'Mohammed ', N'Ali', N'Hassan', N'Husain', 1, N'My Name', 1, 6)
INSERT [dbo].[Question] ([QuestionID], [Question], [Answer1], [Answer2], [Answer3], [Answer4], [CorrectAnswer], [AnswerExplanation], [QuestionOrder], [QuizID]) VALUES (7, N'What is the definition of Safety?', N'Being Safe', N'Being in danger', N'Be careful', N'be careless', 1, N'Nothing', 1, 9)
INSERT [dbo].[Question] ([QuestionID], [Question], [Answer1], [Answer2], [Answer3], [Answer4], [CorrectAnswer], [AnswerExplanation], [QuestionOrder], [QuizID]) VALUES (8, N'What is the definition of Safety? ', N'Being Safe', N'Being Careless', N'Being Careful', N'Being in Dangerous', 1, N'Nothing to say', 1, 10)
SET IDENTITY_INSERT [dbo].[Question] OFF
/****** Object: Table [dbo].[UserQuiz] Script Date: 11/17/2011 00:44:38 ******/
CREATE TABLE [dbo].[UserQuiz](
[UserQuizID] [int] NULL,
[QuizID] [int] NOT NULL,
[DateTimeComplete] [smalldatetime] NOT NULL,
[Score] [tinyint] NOT NULL,
[Username] [nvarchar](256) NOT NULL
) ON [PRIMARY]
GO
INSERT [dbo].[UserQuiz] ([UserQuizID], [QuizID], [DateTimeComplete], [Score], [Username]) VALUES (NULL, 6, CAST(0x9F8F02D8 AS SmallDateTime), 100, N'SMP\ALMARHMS')
INSERT [dbo].[UserQuiz] ([UserQuizID], [QuizID], [DateTimeComplete], [Score], [Username]) VALUES (NULL, 6, CAST(0x9F8F02E3 AS SmallDateTime), 50, N'SMP\ALMARHMS')
INSERT [dbo].[UserQuiz] ([UserQuizID], [QuizID], [DateTimeComplete], [Score], [Username]) VALUES (NULL, 6, CAST(0x9F8F0333 AS SmallDateTime), 50, N'SMP\ALMARHMS')
INSERT [dbo].[UserQuiz] ([UserQuizID], [QuizID], [DateTimeComplete], [Score], [Username]) VALUES (NULL, 7, CAST(0x9F8F0335 AS SmallDateTime), 100, N'SMP\ALMARHMS')
在这个伟大社区的一位成员的帮助下,我提出了一个查询,显示了每个测验的参与者人数。以下是查询:
SELECT
(SELECT COUNT(DISTINCT Q.UserName)
FROM dbo.UserQuiz Q
WHERE DateTimeComplete >= DATEADD(dd, -7, DATEADD(day, DATEDIFF(day, 0, GETDATE()), 0)))
as ParticipantsLast7Days,
(SELECT COUNT(DISTINCT Q.UserName)
FROM dbo.UserQuiz Q
WHERE DateTimeComplete >= DATEADD(dd, -30, DATEADD(day, DATEDIFF(day, 0, GETDATE()), 0)))
as ParticipantsLast30Days,
(SELECT COUNT(Q.QuizID)
FROM dbo.UserQuiz Q
WHERE Q.DateTimeComplete >= DATEADD(dd, -7, DATEADD(day, DATEDIFF(day, 0, GETDATE()), 0)))
as QuizzesLast7Days,
(SELECT COUNT(Q.QuizID)
FROM dbo.UserQuiz Q
WHERE Q.DateTimeComplete >= DATEADD(dd, -30, DATEADD(day, DATEDIFF(day, 0, GETDATE()), 0)))
as QuizzesLast30Days
现在我需要修改它,或者提出一个新的查询,给出上面两点。我该怎么做呢?一个月的参与者人数#参加的测验人数#
select datename(month, datetimecomplete)+' '+ cast(count(distinct username) as varchar) +' '+ cast(count(distinct quizid) as varchar) Quizzes from userquiz group by datename(month, datetimecomplete)
select datename(year, datetimecomplete)+' '+ cast(count(distinct username) as varchar) +' '+ cast(count(distinct quizid) as varchar) Quizzes from userquiz group by datename(year, datetimecomplete)
参与者年份#参加测验的次数#
select datename(month, datetimecomplete)+' '+ cast(count(distinct username) as varchar) +' '+ cast(count(distinct quizid) as varchar) Quizzes from userquiz group by datename(month, datetimecomplete)
select datename(year, datetimecomplete)+' '+ cast(count(distinct username) as varchar) +' '+ cast(count(distinct quizid) as varchar) Quizzes from userquiz group by datename(year, datetimecomplete)