Download Database Connection

Database Connection
1.
2.
3.
4.
5.
Connection
Statement
ResultSet
PreparedStatement
Problem: Course Type
Management
Connection


A connection (session) with a specific
database.
Within the context of a Connection, SQL
statements are executed and results are
returned.
Statement

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
The object used for executing a static
SQL statement and returning the results it
produces.
By default, only one ResultSet object per
Statement object can be open at the
same time.
Statement stmt =
Conection.createStatement();
ResultSet


A table of data representing a database
result set, which is usually generated by
executing a statement that queries the
database
ResultSet rs = stmt.executeQuery(sql);
PreparedStatement


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
An object that represents a precompiled
SQL statement.
A SQL statement is precompiled and
stored in a PreparedStatement object.
This object can then be used to
efficiently execute this statement
multiple times.
PreparedStatement psta =
Connection.prepareStatement(sql);
psta.execute();
5. Problem: Course Type
Management


Develop a web app to manage course
type. Each course type include ID,
name and description.
The web app allows users list all of
course types, add new, delete and
update a course type.
Sample Interface

List of Course Types
Add new Course Type
Delete Course Type
Select Course Type
checkbox and click to
Delete Button
Update Course Type
Click to
“AAS”