From 9315e430b74ed0482e94028f9f1b39db1a1501be Mon Sep 17 00:00:00 2001
From: Thanos Paravantis <p16112@students.cs.unipi.gr>
Date: Thu, 10 May 2018 11:59:47 +0300
Subject: [PATCH] Update JDBC project

---
 JDBC_Example/.idea/workspace.xml              |  48 +++-
 .../com/papei/database/Main.class             | Bin 4122 -> 7710 bytes
 JDBC_Example/src/com/papei/database/Main.java | 261 +++++++++++++++---
 3 files changed, 262 insertions(+), 47 deletions(-)

diff --git a/JDBC_Example/.idea/workspace.xml b/JDBC_Example/.idea/workspace.xml
index edc5b29..c4cc345 100644
--- a/JDBC_Example/.idea/workspace.xml
+++ b/JDBC_Example/.idea/workspace.xml
@@ -15,9 +15,11 @@
       <file leaf-file-name="Main.java" pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/src/com/papei/database/Main.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="50">
-              <caret line="2" column="18" lean-forward="false" selection-start-line="2" selection-start-column="18" selection-end-line="2" selection-end-column="18" />
-              <folding />
+            <state relative-caret-position="3300">
+              <caret line="132" column="16" lean-forward="false" selection-start-line="132" selection-start-column="16" selection-end-line="132" selection-end-column="16" />
+              <folding>
+                <element signature="imports" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
@@ -64,7 +66,7 @@
       <foldersAlwaysOnTop value="true" />
     </navigator>
     <panes>
-      <pane id="Scope" />
+      <pane id="PackagesPane" />
       <pane id="ProjectPane">
         <subPane>
           <expand>
@@ -87,9 +89,9 @@
           <select />
         </subPane>
       </pane>
-      <pane id="AndroidView" />
+      <pane id="Scope" />
       <pane id="Scratches" />
-      <pane id="PackagesPane" />
+      <pane id="AndroidView" />
     </panes>
   </component>
   <component name="PropertiesComponent">
@@ -239,24 +241,24 @@
     <layout>
       <window_info id="Palette" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
-      <window_info id="Messages" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.32934782" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Messages" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.32934782" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Palette&#9;" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Image Layers" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Capture Analysis" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="true" content_ui="tabs" />
       <window_info id="Maven Projects" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
-      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.36086956" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="false" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.6478261" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Capture Tool" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Designer" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
-      <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
+      <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.24739583" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
       <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
       <window_info id="Ant Build" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
       <window_info id="UI Designer" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Theme Preview" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
-      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="true" content_ui="tabs" />
+      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
       <window_info id="Message" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Commander" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
@@ -277,7 +279,19 @@
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="0">
           <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/com/papei/database/Main.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="0">
+          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
@@ -285,15 +299,19 @@
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="0">
           <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/src/com/papei/database/Main.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="50">
-          <caret line="2" column="18" lean-forward="false" selection-start-line="2" selection-start-column="18" selection-end-line="2" selection-end-column="18" />
-          <folding />
+        <state relative-caret-position="3300">
+          <caret line="132" column="16" lean-forward="false" selection-start-line="132" selection-start-column="16" selection-end-line="132" selection-end-column="16" />
+          <folding>
+            <element signature="imports" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
diff --git a/JDBC_Example/out/production/JDBC_Example/com/papei/database/Main.class b/JDBC_Example/out/production/JDBC_Example/com/papei/database/Main.class
index d19e3cd8be297d717e2a461efcb47ab441b9a052..1c9167667d151a31faa33fefb43f3d2b0d0a34c8 100644
GIT binary patch
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diff --git a/JDBC_Example/src/com/papei/database/Main.java b/JDBC_Example/src/com/papei/database/Main.java
index 77a4688..16ff0ef 100644
--- a/JDBC_Example/src/com/papei/database/Main.java
+++ b/JDBC_Example/src/com/papei/database/Main.java
@@ -1,6 +1,8 @@
 package com.papei.database;
 
 import java.sql.*;
+import java.util.InputMismatchException;
+import java.util.Scanner;
 
 public class Main
 {
@@ -12,6 +14,17 @@ public class Main
 	private static final String URL = "jdbc:postgresql://" + Domain + ":" + Port + "/" + Database_Name;
 	private static Connection conn;
 
+	private static final int CHOICE_INVALID = 0;
+	private static final int CHOICE_MIN = 1;
+	private static final int CHOICE_MAX = 7;
+	private static final int CHOICE_QUERY_A = 1;
+	private static final int CHOICE_QUERY_B = 2;
+	private static final int CHOICE_QUERY_C = 3;
+	private static final int CHOICE_QUERY_D = 4;
+	private static final int CHOICE_QUERY_E = 5;
+	private static final int CHOICE_QUERY_F = 6;
+	private static final int CHOICE_EXIT = 7;
+
 	public static void main(String[] args) throws ClassNotFoundException
 	{
 		Class.forName("org.postgresql.Driver");
@@ -26,49 +39,126 @@ public static void main(String[] args) throws ClassNotFoundException
 			e.printStackTrace();
 		}
 
-		execute2a();
+		while (true)
+		{
+			showMenu();
+		}
+	}
 
-		System.out.println();
+	private static void showMenu()
+	{
+		System.out.println("Select which query to execute:");
+		System.out.println(CHOICE_QUERY_A + ". Erotima A");
+		System.out.println(CHOICE_QUERY_B + ". Erotima B");
+		System.out.println(CHOICE_QUERY_C + ". Erotima C");
+		System.out.println(CHOICE_QUERY_D + ". Erotima D");
+		System.out.println(CHOICE_QUERY_E + ". Erotima E");
+		System.out.println(CHOICE_QUERY_F + ". Erotima F");
+		System.out.println(CHOICE_EXIT + ". Exit");
 
-		execute2b();
+		selectChoice();
+	}
 
-		System.out.println();
+	private static void selectChoice()
+	{
+		Scanner scanner = new Scanner(System.in);
+		int input = CHOICE_INVALID;
+
+		do
+		{
+			try
+			{
+				System.out.print("> ");
+				int value = scanner.nextInt();
+
+				if (value >= CHOICE_MIN && value <= CHOICE_MAX)
+					input = value;
+			}
+			catch (InputMismatchException e)
+			{
+				scanner.next();
+			}
 
-		execute2c();
+			if (input == CHOICE_INVALID)
+				System.out.println("Please enter a valid number from " + CHOICE_MIN + " to " + CHOICE_MAX + ".");
+		}
+		while (input == CHOICE_INVALID);
+
+		if (input == CHOICE_EXIT)
+			scanner.close();
+
+		executeChoice(input);
 	}
 
-	private static void execute2a()
+	private static void executeChoice(int choice)
 	{
+		switch (choice)
+		{
+			case CHOICE_QUERY_A:
+				executeA();
+				break;
+			case CHOICE_QUERY_B:
+				executeB();
+				break;
+			case CHOICE_QUERY_C:
+				executeC();
+				break;
+			case CHOICE_QUERY_D:
+				executeD();
+				break;
+			case CHOICE_QUERY_E:
+				executeE();
+				break;
+			case CHOICE_QUERY_F:
+				executeF();
+				break;
+			case CHOICE_EXIT:
+				System.exit(0);
+				break;
+		}
+	}
+
+	private static void executeA()
+	{
+		System.out.println();
+
 		System.out.println("Erotima A");
 
-		Statement statement = null;
+		Statement statement;
 		String query = "SELECT * FROM COUNT_MODELS WHERE COUNT_MODELS.num_of_model = (SELECT max(num_of_model) AS maximum FROM COUNT_MODELS);";
+
 		try
 		{
 			statement = conn.createStatement();
 			ResultSet res = statement.executeQuery(query);
 
-			System.out.println("ID\tTitle\tNumber of Models");
+			System.out.format("%-5s%-15s%-20s", "ID", "Title", "Number of Models");
 
 			while (res.next())
 			{
-				String id = res.getString("id");
-				String title = res.getString("title");
-				String numberOfModels = res.getString("num_of_model");
-				System.out.println(id + "\t" + title + "\t" + numberOfModels);
+				System.out.format(
+						"%n%-5d%-15s%-20d",
+						res.getInt("id"),
+						res.getString("title"),
+						res.getInt("num_of_model"));
 			}
 		}
 		catch (SQLException e)
 		{
 			e.printStackTrace();
 		}
+
+		System.out.println();
+		System.out.println();
 	}
 
-	private static void execute2b()
+	private static void executeB()
 	{
+		System.out.println();
+
 		System.out.println("Erotima B");
 
-		Statement statement = null;
+		Statement statement;
 		String query = "SELECT to_char(start_date, 'Month') as month, ROUND(AVG(cost)::numeric, 2) as avg_profit "
 				+ "FROM service_history "
 				+ "GROUP BY to_char(start_date, 'Month') "
@@ -79,26 +169,32 @@ private static void execute2b()
 			statement = conn.createStatement();
 			ResultSet res = statement.executeQuery(query);
 
-			System.out.println("Month\tAverage Profit");
+			System.out.format("%-20s%-20s", "Month", "Average Profit");
 
 			while (res.next())
 			{
-				String month = res.getString("month");
-				String avgProfit = res.getString("avg_profit");
-				System.out.println(month + "\t" + avgProfit);
+				System.out.format(
+						"%n%-20s%-20s",
+						res.getString("month"),
+						res.getString("avg_profit"));
 			}
 		}
 		catch (SQLException e)
 		{
 			e.printStackTrace();
 		}
+
+		System.out.println();
+		System.out.println();
 	}
 
-	private static void execute2c()
+	private static void executeC()
 	{
+		System.out.println();
+
 		System.out.println("Erotima C");
 
-		Statement statement = null;
+		Statement statement;
 		String query = "SELECT salesman_id, employee.first_name, employee.last_name, profit "
 				+ "FROM PROFIT INNER JOIN employee ON PROFIT.salesman_id = employee.id "
 				+ "WHERE profit = (SELECT max(profit) FROM PROFIT);";
@@ -108,35 +204,136 @@ private static void execute2c()
 			statement = conn.createStatement();
 			ResultSet res = statement.executeQuery(query);
 
-			System.out.println("ID\tFirst Name\tLastName\tProfit\t");
+			System.out.format("%-5s%-20s%-20s%-20s", "ID", "First Name", "Last Name", "Profit");
 
 			while (res.next())
 			{
-				String id = res.getString("salesman_id");
-				String firstName = res.getString("first_name");
-				String lastName = res.getString("last_name");
-				int profit = res.getInt("profit");
-				System.out.println(id + "\t" + firstName+ "\t" + lastName + "\t" + profit);
+				System.out.format(
+						"%n%-5d%-20s%-20s%-20d",
+						res.getInt("salesman_id"),
+						res.getString("first_name"),
+						res.getString("last_name"),
+						res.getInt("profit"));
 			}
 		}
 		catch (SQLException e)
 		{
 			e.printStackTrace();
 		}
+
+		System.out.println();
+		System.out.println();
 	}
 
-	private static void execute2d()
+	private static void executeD()
 	{
-		//
+		System.out.println();
+
+		System.out.println("Erotima D");
+
+		Statement statement;
+		String query = "SELECT id FROM service_history WHERE end_date IS NULL";
+
+		try
+		{
+			statement = conn.createStatement();
+			ResultSet res = statement.executeQuery(query);
+
+			System.out.format("%-5s", "ID");
+
+			while (res.next())
+			{
+				System.out.format(
+						"%n%-5d",
+						res.getInt("id"));
+			}
+		}
+		catch (SQLException e)
+		{
+			e.printStackTrace();
+		}
+
+		System.out.println();
+		System.out.println();
 	}
 
-	private static void execute2e()
+	private static void executeE()
 	{
-		//
+		System.out.println();
+
+		System.out.println("Erotima E");
+
+		Statement statement;
+		String query = "SELECT first_name, last_name, car_id, start_date, end_date "
+				+ "FROM employee INNER JOIN service_history ON employee.id=service_history.tech_id "
+				+ "WHERE employee.id = 3 AND (end_date > NOW() - INTERVAL '1 month' "
+				+ "OR (end_date IS NULL AND start_date > NOW() - INTERVAL '1 month'))";
+
+		try
+		{
+			statement = conn.createStatement();
+			ResultSet res = statement.executeQuery(query);
+
+			System.out.format("%-20s%-20s%-10s%-20s%-20s", "First Name", "Last Name", "Car ID", "Start Date", "End Date");
+
+			while (res.next())
+			{
+				System.out.format(
+						"%n%-20s%-20s%-10d%-20s%-20s",
+						res.getString("first_name"),
+						res.getString("last_name"),
+						res.getInt("car_id"),
+						res.getString("start_date"),
+						res.getString("end_date"));
+			}
+		}
+		catch (SQLException e)
+		{
+			e.printStackTrace();
+		}
+
+		System.out.println();
+		System.out.println();
 	}
 
-	private static void execute2f()
+	private static void executeF()
 	{
-		//
+		System.out.println();
+
+		System.out.println("Erotima F");
+
+		Statement statement;
+		String query = "SELECT title, car_warehouse.id,COUNT(*) total_count FROM service_history "
+				+ "INNER JOIN car_warehouse ON service_history.car_id=car_warehouse.id "
+				+ "INNER JOIN car_models ON car_warehouse.model_id=car_models.id "
+				+ "WHERE (end_date <= NOW() - INTERVAL '1 year' "
+				+ "OR\tstart_date <= NOW() - INTERVAL '1 year') "
+				+ "GROUP BY title,car_warehouse.id "
+				+ "HAVING COUNT(*) > 1 "
+				+ "ORDER BY total_count DESC";
+
+		try
+		{
+			statement = conn.createStatement();
+			ResultSet res = statement.executeQuery(query);
+
+			System.out.format("%-20s%-10s%-10s", "Title", "ID", "Total Count");
+
+			while (res.next())
+			{
+				System.out.format(
+						"%n%-20s%-10s%-10s",
+						res.getString("title"),
+						res.getInt("id"),
+						res.getInt("total_count"));
+			}
+		}
+		catch (SQLException e)
+		{
+			e.printStackTrace();
+		}
+
+		System.out.println();
+		System.out.println();
 	}
 }