Embedded Files
Database Management Software
- MySQL
- Microsoft Access
Exam coverage:
Create and maintain a simple Database using DBMS tool
create and use a form for data entry
Practice data extraction - Query database, create report.
Trace and interpret simple SQL
Paper 1: Start from 2016 HKDSE
Paper 2: Elective A: Database
8.1 Database Concept
Information is one of the most valuable assets of an organization.
Typical applications of databases:
- personal phone book
- Video/CD/Books categories
- Property list of an estate agent
- Employee database
- student records of a school
- club membership etc.
8.2 Using DBMS
Hierarchy of database: field, record, table, database
Database structure:
include Field Name, Data types, field length.
Key field must be present.
Key field is unique to identify a record.
8.3 Microsoft Access
Database Object: (P.287), not confined to Microsoft Access.
Table
Form
Report
Query
Macro (will not be exam)
Module (will not be exam)
Using Microsoft Access (P.289 - 295)
Basic Data Types:
Text, Char : store text of length up to 255 characters.(use single quote)
Number: store numeric value (integer, numeric, single, double)
Date/Time (Use single quote)
Boolean (True, False)
Other data types:
Memo: store long text. (P.289)
Data Sorting (order by ..)
Filtering.(where ...)
8.4 Forms
A form is a graphical user interface used to manipulate and display the data.
8.5 Reports
8.6 Queries
Basic Syntax of a SQL statement for single table
Select <Field names> From <Table Names>
where <filtering condition>
order by <Field names>
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