This document discusses Java database connectivity (JDBC) and CRUD operations using JDBC and SQL Server. It covers how to configure a JDBC-ODBC data source name to connect to an SQL Server database, use the JDBC API to connect to the database and execute basic SQL statements to perform CRUD operations. It also demonstrates how to use prepared statements to query and modify data in a more efficient way by binding parameters at runtime. Code examples are provided to show how to connect to a database, insert, update, delete and retrieve rows from a table.

1. Q7M1 – SC Dudy Fathan Ali S.Kom
Java CRUD Mechanism
with SQL Server Database
Q7M1
Dudy Fathan Ali, S.Kom (DFA)
2017
CEP - CCIT
Fakultas Teknik Universitas Indonesia

2. Repository
Q7M1 – SC Dudy Fathan Ali S.Kom
http://bit.ly/4sc5-repo
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3. Create a Database in SQL Server
Q7M1 – SC Dudy Fathan Ali S.Kom
To follow this lesson, you need to create a database based on the
following schematic database diagram:
Database name: GoShop

4. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
You need to perform the following steps to create a Data Source
Name:
o Select the required driver for a DSN
o Specifying the connection details for a DSN
o Testing the created DSN

5. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Selecting the required driver for a DSN
o Open Administrative Tools in
Control Panel
o Double-click the ODBC Data
Sources Icon

6. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Selecting the required driver for a DSN
o Select System DSN Tab
o Add New System Data Sources

7. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Selecting the required driver for a DSN
o In the Create New Data Source
dialog box, select SQL Server
option
o Click the Finish button

8. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Specifying the connection details for a DSN
o Type the name of the Data
Source in the Name text box
o Select required SQL Server
name from the Server drop-
down list
o Click the Next button

9. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Specifying the connection details for a DSN
o To indicate how the SQL Server
should authenticate a login ID,
select With SQL Server
authentication.. option
o Type the username in the
Login ID textbox and the
password in the Password
textbox
o Click the Next button

10. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Specifying the connection details for a DSN
o Select the name of the
database from drop-down
listbox
o Click the Next button

11. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Specifying the connection details for a DSN
o Click the Finish button

12. Configuring JDBC-ODBC Data Source Name
Q7M1 – SC Dudy Fathan Ali S.Kom
Testing the created DSN
o To test the created DSN for the connection with database, click the Test Data Source
button

13. Using JDBC API
Q7M1 – SC Dudy Fathan Ali S.Kom
o The JDBC API classes and interfaces are available in the java.sql
and the javax.sql packages.
o The commonly used classes and interfaces in the JDBC API are:
o DriverManager class: Loads the driver for a database.
o Driver interface: Represents a database driver. All JDBC driver classes
must implement the Driver interface.
o Connection interface: Enables you to establish a connection between a
Java application and a database.
o Statement interface: Enables you to execute SQL statements.
o ResultSet interface: Represents the information retrieved from a
database.
o SQLException class: Provides information about the exceptions that
occur while interacting with databases.

14. Using JDBC API
Q7M1 – SC Dudy Fathan Ali S.Kom
o The steps to create JDBC application are:
o Load a driver
o Connect to a database
o Create and execute JDBC statements
o Handle SQL exceptions

15. Connecting to a Database
Q7M1 – SC Dudy Fathan Ali S.Kom
Code Example [Koneksi.java]:

16. Creating & Executing JDBC Statements
Q7M1 – SC Dudy Fathan Ali S.Kom
Code Example [ProductCRUD.java]:
Inserting Rows in a Table

17. Creating & Executing JDBC Statements
Q7M1 – SC Dudy Fathan Ali S.Kom
Querying a Table

18. Creating & Executing JDBC Statements
Q7M1 – SC Dudy Fathan Ali S.Kom
Updating Rows in a Table

19. Creating & Executing JDBC Statements
Q7M1 – SC Dudy Fathan Ali S.Kom
Deleting Rows in a Table

20. Querying & Modifying Data Using PreparedStatement Object
Q7M1 – SC Dudy Fathan Ali S.Kom
o The PreparedStatement interface is derived from the Statement
interface and is available in the java.sql package.
o The PreparedStatement object:
o Allows you to pass runtime parameters to the SQL statements to query
and modify the data in a table.
o Is compiled and prepared only once by JDBC. The future invocation of
the PreparedStatement object does not recompile the SQL
statements.
o Helps in reducing the load on the database server and thus improving
the performance of the application.

21. Querying & Modifying Data Using PreparedStatement Object
Q7M1 – SC Dudy Fathan Ali S.Kom
o Methods of the PreparedStatement Interface
o The PreparedStatement interface inherits the following
methods to execute SQL statements from the Statement
interface:
o ResultSet executeQuery(): Executes a SELECT statements and
returns the result in a ResultSet object.
o int executeUpdate(): Executes an SQL statement, INSERT,
UPDATE, or DELETE and returns the count of the rows affected.
o boolean execute(): Executes an SQL statement and returns a
boolean value.

22. Querying & Modifying Data Using PreparedStatement Object
Q7M1 – SC Dudy Fathan Ali S.Kom
o The prepareStatement() method of the Connection object is
used to submit parameterized query to a database.
o The SQL statement can contain ‘?’ symbol as placeholders that can
be replaced by input parameters at runtime.
o The value of each ‘?’ parameter is set by calling an appropriate
setXXX() method, where XXX is the data type of the parameter.
stat = con.prepareStatement("SELECT * FROM authors WHERE au_id = ?");
stat.setString(1,"1001");
ResultSet result=stat.executeQuery();

23. Querying & Modifying Data Using PreparedStatement Object
Q7M1 – SC Dudy Fathan Ali S.Kom
Retrieving Rows

24. Querying & Modifying Data Using PreparedStatement Object
Q7M1 – SC Dudy Fathan Ali S.Kom
Inserting Rows

25. Querying & Modifying Data Using PreparedStatement Object
Q7M1 – SC Dudy Fathan Ali S.Kom
Updating Rows

26. Querying & Modifying Data Using PreparedStatement Object
Q7M1 – SC Dudy Fathan Ali S.Kom
Deleting Rows

27. Q7M1 – SC Dudy Fathan Ali S.Kom
Thank You!
Dudy Fathan Ali, S.Kom
dudy.fathan@eng.ui.ac.id