Friday, October 16, 2020

JDBC Lab -1 Test Database Connection & Create Table using derby db

http://db.apache.org/derby/derby_downloads.html:  db-derby-10.13.1.1-bin

http://db.apache.org/derby/releases/release-10.13.1.1.html :  db-derby-10.13.1.1-bin.zip

Download:    db-derby-10.13.1.1-bin.zip

Extra folder -> goto lib folder -> check "derby.jar" & " derbyclient.jar" files.

Steps: Configure derby db 

1. Open Eclipse IDE "Java EE IDE"

2. Create new Java Project  eg: "JDBC Project"

3. Right Click "Build Path" 

4. Select "Configure Build Path"

5. goto "Libraries"  tab in "Build path"

6. Add External JAR

7. Choose to folder "derby.jar"

8. Apply



// make file src/ TestConnection .java


import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class TestConnection {

public static void main(String[] args) throws SQLException {
// TODO Auto-generated method stub
Connection conn = DriverManager.getConnection("jdbc:derby:D:\\Notes\\TU\\bca 6 th sem\\Java Advance Programming\\JDBCinteliJ\\db\\testdb;create=true");
System.out.println("Connected to Derby Database!");


Statement stmt = conn.createStatement();
//Creating a table in Derby database


String query;
query = "CREATE TABLE Greetings (Message CHAR(20))";
stmt.execute(query);

query = "INSERT INTO Greetings VALUES('Hello, World')";
stmt.execute(query);
// stmt.close();
System.out.println("Table created");


ResultSet rs = stmt.executeQuery("Select * from Greetings");
System.out.println("Contents of the table Greetings table:");
while(rs.next()) {
System.out.print(rs.getString("Message"));
System.out.println();
}



conn.close();
}

}

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