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package util;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class CreateDB {
public static void main(String[] args) {
System.out.println("Creating database ...");
Connection connection = null;
PreparedStatement preparedStatement = null;
try {
//initialize driver and register it with DriverManager
Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
//connect and create the db if not present
connection = DriverManager.getConnection(
"jdbc:derby:target/store_db;create=true",
"",
"");
try {
preparedStatement = connection.prepareStatement("DROP TABLE CATALOG");
preparedStatement.execute();
}catch(Exception e) {
//ignore to avoid erros when db is being created from scratch
}
preparedStatement = connection.prepareStatement("CREATE TABLE CATALOG("
+ "id NUMERIC(5 , 0) NOT NULL,"
+ "product_name VARCHAR(30),"
+ "currency_code CHAR(3),"
+ "price REAL,"
+ "primary key (id)"
+ ")");
preparedStatement.execute();
preparedStatement = connection.prepareStatement("INSERT INTO CATALOG VALUES(0,'Apple', 'USD', 2.99)");
preparedStatement.execute();
preparedStatement = connection.prepareStatement("INSERT INTO CATALOG VALUES(1,'Orange', 'USD', 3.55)");
preparedStatement.execute();
preparedStatement = connection.prepareStatement("INSERT INTO CATALOG VALUES(2,'Pear', 'USD', 1.55)");
preparedStatement.execute();
System.out.println("Done !");
} catch (SQLException ex) {
ex.printStackTrace();
}catch (ClassNotFoundException ex) {
ex.printStackTrace();
} finally {
if (preparedStatement!=null) {
try {
preparedStatement.close();
} catch (SQLException ex) {
ex.printStackTrace();
}
}
if (connection!=null) {
try {
connection.close();
} catch (SQLException ex) {
ex.printStackTrace();
}
}
}
}
}
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