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This chapter introduces how to create and maintain the physical structure of database. Including database and table creation; data type and data format; relationship and referential integrity between tables; sorting and filtering.
When designing the physical structure of the database, it is very important to choose the right data type, data size and format, and to design the reasonable data validity rules and reference integrity in using and maintaining database. Its purpose is to ensure the correctness and integrity of data and reduce all kinds of conscious or unconscious errors. This chapter will take access 2016 as the environment to introduce the creation and maintenance of the physical structure of the database.
Please think about the following questions:
1. How to create a database?
2. How to create tables?
3. What are the data types of fields? Briefly describe what data sizes and data formats are available for each data type?
4. What are field properties?
5. What is a mask? How to design a mask?
6. How to establish relationship and referential integrity? When creating referential integrity, you can choose cascading update and cascading delete, why is there no cascading insert?
7. How to sort the records in the table?
8. How to filter the records in the table?
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-From the beginning: Knowledge Point Puzzle of Chapter I
-1.1 Data & Data Management
--1.1.1 Data, Information and Databases
--1.1.2 Explore Data Management
-1.2 Database System
--1.2.3 Three-tier Mode of Database
-Exercise
-【Discussion: Will the database be replaced by blockchain? 】
-Knowledge Point Puzzle of Chapter Ⅱ
-2.1 Database Design
-2.2 Conceptual Structure Design
--2.2.1 Conceptual Structure Design
-2.3 Logical Structure Design
--2.3.1 Logical Structure Design
--2.3.2 Integrity Rules of Relational Model
--2.3.3 Transforming ER Model into Relational Model
-Exercise
-【Discussion: Structured data —— Relational model, Unstructured data——? 】
-Knowledge Point Puzzle of Chapter Ⅲ
-3.1 Create Databases
-3.2 Create Tables
-3.3 Maintain Tables
-Exercise
-【Discussion: What is the referential integrity?】
-Knowledge Point Puzzle of Chapter Ⅳ
-4.1 Data Types, Constants and Variables
--4.1.1 Data Types, Constants and Variables
-4.2 Expressions
--4.2.1 Numeric & Character Expressions
--4.2.2 Relational & Logical Expressions, Operation Priority
-4.3 Functions
--4.3.3 Date/Time, Conversion and Iif Functions
-Exercise
-Knowledge Point Puzzle of Chapter Ⅴ
-5.1 Query and Query Files
--5.1.1 Data Retrieval Method and Query Files
-5.2 Select Query
-5.3 Operation Query
-Exercise
-Knowledge Point Puzzle of Chapter Ⅵ
-6.1 Summary Of SQL
-6.2 Data Definition Language
--6.2.1 SQL Definition Language
-6.3 Data Query Language
-6.4 Data Manipulation Language
--6.4.1 SQL Manipulation Language
-Exerise
-Knowledge Point Puzzle of Chapter Ⅶ
-7.1 Form Design
-7.2 Report Design
--7.2.1 Report Structure and Create Report
-Exercise
-Knowledge Point Puzzle of Chapter Ⅷ
-8.1 VBA Programming
--8.1.1 VBA Programming Environment
-8.2 Sequence Structure
-8.3 Selection Structure
--8.3.2 The “Select Case” Statement & Nested Selection Structure
-8.4 Repetition Structure
--8.4.2 The “Do While” Statement
-8.5 Functions & Procedures
--8.5.1 Functions and Procedures
--8.5.2 Parameter Transmission
-8.6 VBA Debug
-8.7 Arrays
-Exercise
-Knowledge Point Puzzle of Chapter Ⅸ
-9.1 What is OOP?
-9.2 Properties, Methods and Events
--9.2.1 Properties, Methods and Events
--9.2.2 Event Trigger Sequence
-9.3 OOP Examples
--9.3.1 Object Synchronization
--9.3.4 Connect and Access Tables
-Exercise
-Knowledge Point Puzzle of Chapter Ⅹ
-10.1 What is a Macro?
--10.1.2 Commands and Classifications of Macro
-10.2 Create Macros
--10.2.1 Add New Action to a Macro
-10.3 Debugging and Conversion of Macro
--10.3.1 Debugging and Conversion of Macro
-Exercise
-Congradulations!Puzzle complete!
-11.1 Requirement Analysis of Database Application System
--11.1.1 System Design Process
--11.1.2 System Function Introduction
-11.2 Data Layer of Database Application System
--11.2.1 Underlying Data Structure
-11.3 Realization of Database Application System
--11.3.1 Registration and Login Module
--11.3.2 Get User Identity from Login Form
-11.4 Test and Release of Database Application System
--11.4.1 Test and Release of Database Application System
-Final Exam