From e9e8f07615504b4b78233ddcd81dc477da3d86bf Mon Sep 17 00:00:00 2001
From: Rohini Patil <rohiniap999@gmail.com>
Date: Thu, 25 Sep 2025 12:19:18 +0200
Subject: [PATCH] Revert "Hanna_Dubyna-w1-Databases"

---
 Week1/scripts/databasepg.js    | 118 ---------------------------------
 Week1/scripts/world-queries.js |  80 ----------------------
 2 files changed, 198 deletions(-)
 delete mode 100644 Week1/scripts/databasepg.js
 delete mode 100644 Week1/scripts/world-queries.js

diff --git a/Week1/scripts/databasepg.js b/Week1/scripts/databasepg.js
deleted file mode 100644
index 946dd6e4d..000000000
--- a/Week1/scripts/databasepg.js
+++ /dev/null
@@ -1,118 +0,0 @@
-import { Client } from "pg";
-
-const client = new Client({
-  host: "localhost",
-  user: "hyfuser",
-  port: 5432,
-  password: "hyfpassword",
-  database: "meetup",
-});
-
-async function initializeDatabase() {
-  try {
-    await client.connect();
-    console.log("Connected to PostgresQL");
-
-    await client.query(`
-      CREATE TABLE IF NOT EXISTS Invitee(
-      invitee_no SERIAL PRIMARY KEY,
-      invitee_name VARCHAR(100),
-      invited_by VARCHAR(100)
-      )`);
-
-    // Remove all rows before inserting new data to avoid duplicates
-    await client.query(`DELETE FROM Meeting;`);
-    await client.query(`DELETE FROM Room;`);
-    await client.query(`DELETE FROM Invitee;`);
-
-    // Reset sequences so IDs start from 1
-    await client.query(`ALTER SEQUENCE invitee_invitee_no_seq RESTART WITH 1;`);
-    await client.query(`ALTER SEQUENCE room_room_no_seq RESTART WITH 1;`);
-    await client.query(`ALTER SEQUENCE meeting_meeting_no_seq RESTART WITH 1;`);
-
-    await client.query(`
-      CREATE TABLE IF NOT EXISTS Room(
-      room_no SERIAL PRIMARY KEY,
-      room_name VARCHAR(100),
-      floor_number INTEGER
-      ) `);
-
-    await client.query(`DELETE FROM Room;`);
-
-    await client.query(`
-      CREATE TABLE IF NOT EXISTS Meeting(
-      meeting_no SERIAL PRIMARY KEY,
-      meeting_title VARCHAR(100),
-      starting_time TIMESTAMP,
-      ending_time TIMESTAMP,
-      room_no INTEGER REFERENCES Room(room_no)
-      )
-      `);
-
-    await client.query(`
-      INSERT INTO Invitee (invitee_name, invited_by) VALUES
-      ('Scarlett Johansson', 'Aiden Cross'),
-      ('Leonardo DiCaprio', 'Lila Montgomery'),
-      ('Taylor Swift', 'Ethan Caldwell'),
-      ('Chris Hemsworth', 'Sophia Bennett'),
-      ('Emma Watson', 'Jackson Rivers')
-      `);
-
-    await client.query(`
-    INSERT INTO Room(room_name, floor_number) VALUES
-    ('black room', 2),
-    ('white room', 3),
-    ('silver room', 4),
-    ('black room', 2),
-    ('golden room', 1)
-    `);
-
-    const rooms = await client.query(`SELECT room_no FROM Room`);
-    const roomIds = rooms.rows.map((r) => r.room_no);
-
-    const meetingsData = [
-      {
-        title: "Kickoff",
-        start: "2025-08-27 10:00:00",
-        end: "2025-08-27 12:00:00",
-      },
-      {
-        title: "Planning Session",
-        start: "2025-08-27 13:00:00",
-        end: "2025-08-27 14:00:00",
-      },
-      {
-        title: "Team Meeting",
-        start: "2025-08-27 14:30:00",
-        end: "2025-08-27 15:30:00",
-      },
-      {
-        title: "Retrospective",
-        start: "2025-08-27 16:00:00",
-        end: "2025-08-27 17:00:00",
-      },
-      {
-        title: "Client Presentation",
-        start: "2025-08-27 17:30:00",
-        end: "2025-08-27 18:00:00",
-      },
-    ];
-
-    for (const m of meetingsData) {
-      const randomRoom = roomIds[Math.floor(Math.random() * roomIds.length)];
-      await client.query(
-        `INSERT INTO Meeting(meeting_title, starting_time, ending_time, room_no)
-         VALUES ($1, $2, $3, $4)`,
-        [m.title, m.start, m.end, randomRoom]
-      );
-    }
-
-    console.log("Tables Invitee, Room, and Meeting created and populated!");
-  } catch (err) {
-    console.error("Error:", err);
-  } finally {
-    await client.end();
-  }
-}
-
-initializeDatabase();
diff --git a/Week1/scripts/world-queries.js b/Week1/scripts/world-queries.js
deleted file mode 100644
index 282eb596f..000000000
--- a/Week1/scripts/world-queries.js
+++ /dev/null
@@ -1,80 +0,0 @@
-import { Client } from "pg";
-
-const client = new Client({
-  host: "localhost",
-  user: "hyfuser",
-  port: 5432,
-  password: "hyfpassword",
-  database: "world",
-});
-
-async function runWorldQueries() {
-  try {
-    await client.connect();
-    console.log("Connected to PostgressQL!");
-
-    await client.query(`
-      SELECT country.name FROM country
-WHERE country.population > 8000000
-      `);
-
-    await client.query(`
-      SELECT country.name FROM country
-      WHERE country.name LIKE '%land%'
-      `);
-
-    await client.query(`
-      SELECT city.name FROM city
-      WHERE city.population >= 500000 AND city.population <= 1000000
-      `);
-
-    await client.query(`
-      SELECT country.name FROM country
-      WHERE country.continent = 'Europe'
-      `);
-
-    await client.query(`
-      SELECT * FROM country ORDER BY
-       surfacearea DESC
-      `);
-
-    await client.query(`
-   SELECT city.name
-   FROM city
-   JOIN country ON city.countrycode = country.code
-   WHERE country.name = 'Netherlands'
-      `);
-
-    await client.query(`
-      SELECT population
-      FROM city
-      WHERE name = 'Rotterdam'
-      `);
-
-    await client.query(`
-      SELECT name, surfacearea
-      FROM country
-      ORDER BY
-       surfacearea DESC
-       LIMIT 10
-      `);
-
-    await client.query(`
-      SELECT name, population
-      FROM city
-      ORDER BY population DESC
-      LIMIT 10
-      `);
-
-    await client.query(`
-      SELECT SUM(population) AS world_population
-      FROM country
-      `);
-  } catch (err) {
-    console.error("Error:", err);
-  } finally {
-    await client.end();
-  }
-}
-
-runWorldQueries();