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POHow to get the number of respondents for each choice of answers?
 

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  1. POHow to get the number of respondents for each choice of answers?
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    <p><strong>I have a survey that I need to design a database for it to store its results and retrieve the results using some queries.</strong> </p> <p>The current database design that I have is as following:</p> <pre><code>Respondents Table: RespondentID, Name, OrgCode Department Table: OrgCode, DepartmentName Category Table: CategoryID, CategoryName SubCategory Table: SubCategoryID, SubCategoryName, CategoryID Questions Table: QuestionID, QuestionDesc, CategoryID, SubCategoryID SubQuestions Table: SubQuestionID, SubQuestionDesc, QuestionID Answers Table: AnswerID, AnswerDesc, QuestionID, SubQuestionID CompleteSurvey Table: ID, RespondentID, CategoryID, AnswerID </code></pre> <p><strong>An example of this survey:</strong> </p> <pre><code>Category I SubCategory A Question 1: what do you think about the following service SubQuestion 1: Service #1 (Strongly Agree, Agree, Disagree, Strongly Disagree) SubQuestion 2: Service #2 (Strongly Agree, Agree, Disagree, Strongly Disagree) </code></pre> <p>Let us assume that there are three employees answered this question</p> <p>Now, I want to write a query that shows the number of respondents who said Strongly Agree, Agree, Disagree and Strongly Agree in each question or subquestion. <strong>Is it doable by this database design? If yes, could you please help me with this query?</strong> </p> <p><strong>Also, do you think there is other designs that are much simpler than the above design? If yes, could you please recommend me with one of them?</strong></p> <p>Database Design:</p> <pre><code>/****** Object: Table [dbo].[Departments] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[Departments]( [OrgCode] [float] NOT NULL, [DepartmentName] [nvarchar](max) NOT NULL, CONSTRAINT [PK_Departments] PRIMARY KEY CLUSTERED ( [OrgCode] 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 /****** Object: Table [dbo].[Category] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[Category]( [CategoryID] [int] IDENTITY(1,1) NOT NULL, [CategoryName] [nvarchar](50) NOT NULL, CONSTRAINT [PK_Category] PRIMARY KEY CLUSTERED ( [CategoryID] 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 /****** Object: Table [dbo].[SubCategory] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[SubCategory]( [SubCategoryID] [int] IDENTITY(1,1) NOT NULL, [SubCategoryName] [nvarchar](50) NOT NULL, [CategoryID] [int] NOT NULL, CONSTRAINT [PK_SubCategory] PRIMARY KEY CLUSTERED ( [SubCategoryID] 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 /****** Object: Table [dbo].[Respondents] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [dbo].[Respondents]( [RespondentID] [nvarchar](50) NOT NULL, [Name] [varchar](50) NULL, [OrgCode] [float] NOT NULL, CONSTRAINT [PK_Respondents] PRIMARY KEY CLUSTERED ( [RespondentID] 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 /****** Object: Table [dbo].[Questions] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[Questions]( [QuestionID] [int] IDENTITY(1,1) NOT NULL, [QuestionDesc] [nvarchar](max) NOT NULL, [CategoryID] [int] NULL, [SubCategoryID] [int] NULL, CONSTRAINT [PK_Questions] 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 /****** Object: Table [dbo].[CompleteSurvey] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[CompleteSurvey]( [ID] [int] IDENTITY(1,1) NOT NULL, [RespondentID] [nvarchar](50) NOT NULL, [CategoryID] [int] NOT NULL, [AnswerID] [int] NOT NULL, CONSTRAINT [PK_CompleteSurvey] PRIMARY KEY CLUSTERED ( [ID] 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 /****** Object: Table [dbo].[SubQuestions] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[SubQuestions]( [SubQuestionID] [int] IDENTITY(1,1) NOT NULL, [SubQuestionDesc] [nvarchar](max) NOT NULL, [QuestionID] [int] NULL, CONSTRAINT [PK_SubQuestions] PRIMARY KEY CLUSTERED ( [SubQuestionID] 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 /****** Object: Table [dbo].[Answers] Script Date: 05/20/2012 07:26:11 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[Answers]( [AnswerID] [int] IDENTITY(1,1) NOT NULL, [AnswerDesc] [nvarchar](max) NOT NULL, [QuestionID] [int] NULL, [SubQuestionID] [int] NULL, CONSTRAINT [PK_Answers] PRIMARY KEY CLUSTERED ( [AnswerID] 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 /****** Object: ForeignKey [FK_SubCategory_Category] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[SubCategory] WITH CHECK ADD CONSTRAINT [FK_SubCategory_Category] FOREIGN KEY([CategoryID]) REFERENCES [dbo].[Category] ([CategoryID]) GO ALTER TABLE [dbo].[SubCategory] CHECK CONSTRAINT [FK_SubCategory_Category] GO /****** Object: ForeignKey [FK_Respondents_Departments] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[Respondents] WITH CHECK ADD CONSTRAINT [FK_Respondents_Departments] FOREIGN KEY([OrgCode]) REFERENCES [dbo].[Departments] ([OrgCode]) GO ALTER TABLE [dbo].[Respondents] CHECK CONSTRAINT [FK_Respondents_Departments] GO /****** Object: ForeignKey [FK_Questions_Category] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[Questions] WITH CHECK ADD CONSTRAINT [FK_Questions_Category] FOREIGN KEY([CategoryID]) REFERENCES [dbo].[Category] ([CategoryID]) GO ALTER TABLE [dbo].[Questions] CHECK CONSTRAINT [FK_Questions_Category] GO /****** Object: ForeignKey [FK_Questions_SubCategory] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[Questions] WITH CHECK ADD CONSTRAINT [FK_Questions_SubCategory] FOREIGN KEY([SubCategoryID]) REFERENCES [dbo].[SubCategory] ([SubCategoryID]) GO ALTER TABLE [dbo].[Questions] CHECK CONSTRAINT [FK_Questions_SubCategory] GO /****** Object: ForeignKey [FK_CompleteSurvey_Respondents] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[CompleteSurvey] WITH CHECK ADD CONSTRAINT [FK_CompleteSurvey_Respondents] FOREIGN KEY([RespondentID]) REFERENCES [dbo].[Respondents] ([RespondentID]) GO ALTER TABLE [dbo].[CompleteSurvey] CHECK CONSTRAINT [FK_CompleteSurvey_Respondents] GO /****** Object: ForeignKey [FK_SubQuestions_Questions] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[SubQuestions] WITH CHECK ADD CONSTRAINT [FK_SubQuestions_Questions] FOREIGN KEY([QuestionID]) REFERENCES [dbo].[Questions] ([QuestionID]) GO ALTER TABLE [dbo].[SubQuestions] CHECK CONSTRAINT [FK_SubQuestions_Questions] GO /****** Object: ForeignKey [FK_Answers_Questions] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[Answers] WITH CHECK ADD CONSTRAINT [FK_Answers_Questions] FOREIGN KEY([QuestionID]) REFERENCES [dbo].[Questions] ([QuestionID]) GO ALTER TABLE [dbo].[Answers] CHECK CONSTRAINT [FK_Answers_Questions] GO /****** Object: ForeignKey [FK_Answers_SubQuestions] Script Date: 05/20/2012 07:26:11 ******/ ALTER TABLE [dbo].[Answers] WITH CHECK ADD CONSTRAINT [FK_Answers_SubQuestions] FOREIGN KEY([SubQuestionID]) REFERENCES [dbo].[SubQuestions] ([SubQuestionID]) GO ALTER TABLE [dbo].[Answers] CHECK CONSTRAINT [FK_Answers_SubQuestions] GO </code></pre>
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