 package com.chegg.jul5b.covid;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import com.chegg.jul1b.dbconnect.Database;

import javafx.application.Application;

import javafx.geometry.Insets;

import javafx.geometry.Pos;

import javafx.scene.Scene;

import javafx.scene.control.Alert;

import javafx.scene.control.Alert.AlertType;

import javafx.scene.control.Button;

import javafx.scene.control.Label;

import javafx.scene.control.TextField;

import javafx.scene.layout.GridPane;

import javafx.scene.paint.Color;

import javafx.scene.text.Font;

import javafx.scene.text.FontWeight;

import javafx.scene.text.Text;

import javafx.stage.Stage;

public class PatientsApplication extends Application {

public static final String BLANK = "";

GridPane gridPane;

Button addPatientButton, searchPatientButton;

Text recordKeepingText, searchPatientText;

Label patientIdLabel, patientNameLabel, patientAddressLabel, covidEffectedLabel, patientIdResultLabel, patientNameResultLabel, patientAddressResultLabel, covidEffectedResultLabel, patientIdSearchLabel;

TextField patientIdField, patientNameField, patientAddressField, covidEffectedField, patientIdResultField, patientNameResultField, patientAddressResultField, covidEffectedResultField, patientIdSearchField;

  

@Override

public void start(Stage stage) {

stage.setTitle("Assignmnet No.2 of YOUR_ID");

gridPane = new GridPane();

gridPane.setAlignment(Pos.CENTER);

gridPane.setHgap(10);

gridPane.setVgap(10);

gridPane.setPadding(new Insets(25, 25, 25, 25));

recordKeepingText = new Text("Record Keeping:");

recordKeepingText.setStyle("-fx-text-inner-color: Blue;");

recordKeepingText.setFont(Font.font("Tahoma", FontWeight.NORMAL, 20));

recordKeepingText.setFill(Color.BLUE);

gridPane.add(recordKeepingText, 0, 0);

patientIdLabel = new Label("Patient ID:");

gridPane.add(patientIdLabel, 0, 1);

  

patientIdField = new TextField();

gridPane.add(patientIdField, 1, 1);

  

patientNameLabel = new Label("Patient Name:");

gridPane.add(patientNameLabel, 2, 1);

  

patientNameField = new TextField();

gridPane.add(patientNameField, 3, 1);

  

patientAddressLabel = new Label("Patient Address:");

gridPane.add(patientAddressLabel, 0, 2);

  

patientAddressField = new TextField();

gridPane.add(patientAddressField, 1, 2);

  

covidEffectedLabel = new Label("Covid Effected(Y/N):");

gridPane.add(covidEffectedLabel, 2, 2);

  

covidEffectedField = new TextField();

gridPane.add(covidEffectedField, 3, 2);

  

addPatientButton = new Button("Add Patient Record");

gridPane.add(addPatientButton, 0, 3);

  

searchPatientText = new Text("Search Patient Record:");

searchPatientText.setStyle("-fx-text-inner-color: blue;");

searchPatientText.setFont(Font.font("Tahoma", FontWeight.NORMAL, 20));

searchPatientText.setFill(Color.BLUE);

gridPane.add(searchPatientText, 0, 4);

  

patientIdSearchLabel = new Label("Patient ID:");

gridPane.add(patientIdSearchLabel, 0, 5);

  

patientIdSearchField = new TextField();

gridPane.add(patientIdSearchField, 1, 5);

  

searchPatientButton = new Button("Search Patient Record");

gridPane.add(searchPatientButton, 2, 5);

  

patientIdResultLabel = new Label("Patient ID:");

gridPane.add(patientIdResultLabel, 0, 6);

  

patientIdResultField = new TextField();

patientIdResultField.setDisable(true);

gridPane.add(patientIdResultField, 1, 6);

  

patientNameResultLabel = new Label("Patient Name:");

gridPane.add(patientNameResultLabel, 0, 7);

  

patientNameResultField = new TextField();

patientNameResultField.setDisable(true);

gridPane.add(patientNameResultField, 1, 7);

  

patientAddressResultLabel = new Label("Patient Address:");

gridPane.add(patientAddressResultLabel, 0, 8);

  

patientAddressResultField = new TextField();

patientAddressResultField.setDisable(true);

gridPane.add(patientAddressResultField, 1, 8);

  

covidEffectedResultLabel = new Label("Effected by Virus:");

gridPane.add(covidEffectedResultLabel, 0, 9);

  

covidEffectedResultField = new TextField();

covidEffectedResultField.setDisable(true);

gridPane.add(covidEffectedResultField, 1, 9);

addPatientButton.setOnAction(actionEvent -> {

String patientId = patientIdField.getText();

String patientName = patientNameField.getText();

String patientAddress = patientAddressField.getText();

String covidEffected = covidEffectedField.getText();

  

if (BLANK.equals(patientId) || BLANK.equals(patientName) || BLANK.equals(patientAddress) || BLANK.equals(covidEffected)) {

this.alert("Blank Data", "Please enter all input fields", AlertType.ERROR);

} else {

Connection connection = null;

PreparedStatement statement = null;

try {

connection = Database.getDBConnection();

connection.setAutoCommit(false);

String sql = "INSERT INTO PATIENT_DETAILS VALUES (?, ?, ?, ?)";

statement = connection.prepareStatement(sql);

statement.setString(1, patientId);

statement.setString(2, patientName);

statement.setString(3, patientAddress);

statement.setString(4, covidEffected);

  

int count = statement.executeUpdate();

if (count == 1) {

this.alert("Success", "Patient record created successfully", AlertType.INFORMATION);

}

} catch (Exception e) {

e.printStackTrace();

} finally {

if (null != statement) {

try {

statement.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

if (null != connection) {

try {

connection.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

}

}

});

  

searchPatientButton.setOnAction(actionEvent -> {

String patientId = patientIdSearchField.getText();

  

if (BLANK.equals(patientId)) {

this.alert("Blank Data", "Please enter Patient ID to search for", AlertType.ERROR);

} else {

Connection connection = null;

PreparedStatement statement = null;

try {

connection = Database.getDBConnection();

connection.setAutoCommit(false);

String sql = "SELECT * FROM PATIENT_DETAILS WHERE PATIENT_ID = ?";

statement = connection.prepareStatement(sql);

statement.setString(1, patientId);

  

ResultSet rs = statement.executeQuery();

while (rs.next()) {

patientIdResultField.setText(rs.getString(1));

patientNameResultField.setText(rs.getString(2));

patientAddressResultField.setText(rs.getString(3));

covidEffectedResultField.setText(rs.getString(4));

}

} catch (Exception e) {

e.printStackTrace();

} finally {

if (null != statement) {

try {

statement.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

if (null != connection) {

try {

connection.close();

} catch (SQLException e) {

e.printStackTrace();

}

}

}

}

});

Scene scene = new Scene(gridPane, 1200, 600);

stage.setScene(scene);

stage.show();

}

// Will show alert messages

public void alert(String title, String message, AlertType alertType) {

Alert alert = new Alert(alertType);

alert.setTitle(title);

alert.setHeaderText(null);

alert.setContentText(message);

alert.showAndWait();

}

// Executon starts from here

public static void main(String[] args) {

launch(args);

}

}

Step 2: Create Database.java and add below code.

package com.chegg.jul5b.covid;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.SQLException;

import java.util.logging.Level;

import java.util.logging.Logger;

public class Database {

private static final Logger logger = Logger.getLogger(Database.class.getName());

private static final String databaseURL = "jdbc:ucanaccess://e://Java//MsAccess//Patients.accdb";

  

private Database() {

  

}

  

public static Connection getDBConnection() throws SQLException {

Connection connection = null;

try {

Class.forName(DB_DRIVER);

} catch (ClassNotFoundException exception) {

logger.log(Level.SEVERE, exception.getMessage());

}

try {

connection = DriverManager.getConnection(databaseURL);

return connection;

} catch (SQLException exception) {

logger.log(Level.SEVERE, exception.getMessage());

}

return connection;

}

}

created 3 years ago

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Commands

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Example

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);

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ALTER TABLE Table_name ADD column_name datatype;

Example

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TRUNCATE table table_name;

4. DROP

DROP TABLE table_name;

5. RENAME

RENAME TABLE table_name1 to new_table_name1;

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Single-Line Comments:

 --Line1;

Multi-Line comments:

   /* Line1,
   Line2 */

DML Commands

1. INSERT

INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);

Note: Column names are optional.

Example

INSERT INTO EMPLOYEE VALUES (0001, 'Ava', 'Sales');

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SELECT column1, column2, ...
FROM table_name
[where condition];

Example

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3. UPDATE

UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;

Example

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4. DELETE

DELETE FROM table_name where condition;

Example

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Indexes

1. CREATE INDEX

  CREATE INDEX index_name on table_name(column_name);

To Create Unique index:

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2. DROP INDEX

DROP INDEX index_name ON table_name;

Views

1. Create a View

Creating a View:
CREATE VIEW View_name AS 
Query;

2. How to call view

SELECT * FROM View_name;

3. Altering a View

ALTER View View_name AS 
Query;

4. Deleting a View

DROP VIEW View_name;

Triggers

1. Create a Trigger

CREATE TRIGGER trigger_name trigger_time trigger_event
    ON tbl_name FOR EACH ROW [trigger_order] trigger_body
/* where
trigger_time: { BEFORE | AFTER }
trigger_event: { INSERT | UPDATE | DELETE }
trigger_order: { FOLLOWS | PRECEDES } */

2. Drop a Trigger

DROP TRIGGER [IF EXISTS] trigger_name;

Stored Procedures

1. Create a Stored Procedure

CREATE PROCEDURE sp_name(p1 datatype)
BEGIN
/*Stored procedure code*/
END;

2. How to call Stored procedure

CALL sp_name;

3. How to delete stored procedure

DROP PROCEDURE sp_name;

Joins

1. INNER JOIN

SELECT * FROM TABLE1 INNER JOIN TABLE2 where condition;

2. LEFT JOIN

SELECT * FROM TABLE1 LEFT JOIN TABLE2 ON condition;

3. RIGHT JOIN

SELECT * FROM TABLE1 RIGHT JOIN TABLE2 ON condition;

4. CROSS JOIN

SELECT select_list from TABLE1 CROSS JOIN TABLE2;