Added new subdirectory inside Database Design Directory

Database Design/Video Game Reviews/Non Materialized Views, Group Role, and User Role, and Privileges of Video Game Reviews Kaggle Dataset for OLTP System.sql

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+-- Non-Materialized Views for OLTP System (Kaggle Dataset)
+
+
+-- Drop view if exists
+DROP VIEW IF EXISTS 
+	cheapest_games_per_platforms;
+DROP VIEW IF EXISTS 
+	game_descriptions;
+
+
+
+-- Cheapest games per platforms
+CREATE VIEW
+	cheapest_games_per_platforms AS
+WITH	
+	cheapest_prices_per_platforms AS (
+SELECT
+	kaggle_db.platforms.`Platform`,
+    MIN(kaggle_db.video_game_reviews.`Price`) AS price
+FROM 
+	kaggle_db.video_game_reviews
+INNER JOIN 
+	kaggle_db.platforms
+USING(platform_id) 
+GROUP BY 
+	kaggle_db.platforms.`Platform`
+ORDER BY 
+	price
+)
+
+SELECT
+	`Game Title`,
+    cheapest_prices_per_platforms.`Platform`,
+    cheapest_prices_per_platforms.price
+FROM 
+	cheapest_prices_per_platforms
+INNER JOIN 
+	kaggle_db.video_game_reviews
+ON 
+	cheapest_prices_per_platforms.price = kaggle_db.video_game_reviews.`Price`
+ORDER BY 
+	cheapest_prices_per_platforms.price;
+
+
+-- Game Descriptions
+CREATE VIEW
+	game_descriptions AS
+SELECT 
+	`Game Title`,
+    `User Rating`, 
+    `Price`, 
+    `Platform`,
+    `Release Year`,
+	`Genre`,
+    `User Review Text`,
+    `Game Mode`
+FROM 
+	kaggle_db.video_game_reviews
+INNER JOIN 
+	kaggle_db.platforms
+USING(platform_id)
+INNER JOIN 
+	kaggle_db.release_years
+USING(release_year_id)
+INNER JOIN 
+	kaggle_db.genres
+USING(genre_id)
+INNER JOIN
+	kaggle_db.game_modes
+USING(game_mode_id)
+ORDER BY 
+	`User Rating` DESC;
+
+
+
+-- Creating roles and privileges for OLTP System (Kaggle Dataset)
+
+
+-- Drop role/s or user accounts if exists
+DROP ROLE IF EXISTS 
+	users;
+DROP USER IF EXISTS 
+	'joe'@'localhost';
+DROP ROLE IF EXISTS
+	data_scientists;
+DROP USER IF EXISTS 
+	'willie'@'localhost';
+DROP ROLE IF EXISTS 
+	data_admins;
+DROP USER IF EXISTS 
+	'christiane'@'localhost';
+
+
+
+-- User/Group Roles
+CREATE ROLE 
+	users; 
+CREATE USER 
+	'joe'@'localhost';
+CREATE ROLE 
+	data_scientists;
+CREATE USER 
+	'willie'@'localhost';
+CREATE ROLE
+	data_admins;
+CREATE USER 
+	'christiane'@'localhost';
+
+
+-- Grant 'SELECT' Privileges of 'game_descriptions' view for 'users', and 'data_scientists' role
+GRANT SELECT 
+ON
+	game_descriptions
+TO
+	users, data_scientists;
+
+
+-- Grant 'SELECT' Privileges of 'cheapest_games_per_platforms' view for 'users', and 'data_scientist' role
+GRANT SELECT
+ON
+	cheapest_games_per_platforms
+TO 
+	users, data_scientists;
+
+
+-- Grant 'CREATE, SELECT, UPDATE, DELETE' Privileges of 'video_game_reviews' table from 'kaggle_db' database for 'data_admins' role
+GRANT CREATE, SELECT, UPDATE, DELETE 
+ON 
+	kaggle_db.video_game_reviews 
+TO
+	data_admins;
+
+
+
+-- Grant 'users' role privileges to 'joe' user account
+GRANT users
+TO 
+	'joe'@'localhost';
+
+
+-- Grant 'data_scientists' role to 'willie' user account
+GRANT data_scientists
+TO 
+	'willie'@'localhost';
+
+
+-- Grant 'data_admin' role to 'christiane' user account
+GRANT data_admins
+TO
+	'christiane'@'localhost';
+
+
+
+-- Show privileges 
+SHOW GRANTS FOR 'joe'@'localhost';
+SHOW GRANTS FOR 'willie'@'localhost';
+SHOW GRANTS FOR 'christiane'@'localhost';

Database Design/Video Game Reviews/age_groups.csv

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+age_group_id,"Age Group Targeted"
+1,"All Ages"
+2,Adults
+3,Teens
+4,Kids

Database Design/Video Game Reviews/developers_and_publishers.csv

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+developer_publisher_id,Developer,Publisher
+1,"Game Freak",Innersloth
+2,Nintendo,"Electronic Arts"
+3,Bungie,Capcom
+4,"Game Freak",Nintendo
+5,"Game Freak","Epic Games"
+6,Capcom,Capcom
+7,Capcom,"Take-Two Interactive"
+8,"Epic Games","Epic Games"
+9,"CD Projekt Red",Innersloth
+10,Capcom,Activision
+11,Capcom,"Epic Games"
+12,"EA Sports",Activision
+13,"Epic Games",Valve
+14,"Epic Games",Activision
+15,Bungie,"Take-Two Interactive"
+16,Bungie,"Epic Games"
+17,Nintendo,Innersloth
+18,"Game Freak",Capcom
+19,Capcom,"Electronic Arts"
+20,Bungie,"Electronic Arts"
+21,"Rockstar Games","Epic Games"
+22,Capcom,Valve
+23,Innersloth,Innersloth
+24,"EA Sports",Nintendo
+25,"Epic Games","Take-Two Interactive"
+26,"Rockstar Games",Valve
+27,Bungie,Valve
+28,Valve,Nintendo
+29,"Game Freak",Activision
+30,Valve,"Epic Games"
+31,Bungie,"Square Enix"
+32,"EA Sports",Innersloth
+33,"Epic Games",Innersloth
+34,"Game Freak","Take-Two Interactive"
+35,"Rockstar Games","Take-Two Interactive"
+36,"CD Projekt Red",Activision
+37,Innersloth,"Square Enix"
+38,Nintendo,Valve
+39,"Epic Games","Electronic Arts"
+40,Bungie,Nintendo
+41,Nintendo,"Square Enix"
+42,Innersloth,Activision
+43,"Game Freak",Valve
+44,"EA Sports","Electronic Arts"
+45,"CD Projekt Red",Nintendo
+46,Innersloth,Capcom
+47,"EA Sports","Square Enix"
+48,"Rockstar Games","Square Enix"
+49,"Epic Games","Square Enix"
+50,"EA Sports",Capcom
+51,Nintendo,Nintendo
+52,Valve,"Square Enix"
+53,"CD Projekt Red","Epic Games"
+54,"Rockstar Games",Capcom
+55,"EA Sports","Epic Games"
+56,Valve,"Electronic Arts"
+57,Innersloth,"Electronic Arts"
+58,"EA Sports",Valve
+59,"CD Projekt Red","Electronic Arts"
+60,"Epic Games",Capcom
+61,Innersloth,Valve
+62,Nintendo,"Take-Two Interactive"
+63,Capcom,"Square Enix"
+64,Valve,Innersloth
+65,Nintendo,Capcom
+66,Innersloth,Nintendo
+67,Bungie,Activision
+68,"Game Freak","Square Enix"
+69,"Rockstar Games","Electronic Arts"
+70,Capcom,Nintendo
+71,Valve,"Take-Two Interactive"
+72,"Game Freak","Electronic Arts"
+73,Nintendo,"Epic Games"
+74,Valve,Valve
+75,Capcom,Innersloth
+76,"Rockstar Games",Nintendo
+77,"CD Projekt Red",Valve
+78,Bungie,Innersloth
+79,Innersloth,"Take-Two Interactive"
+80,"CD Projekt Red","Square Enix"
+81,"Rockstar Games",Innersloth
+82,"CD Projekt Red","Take-Two Interactive"
+83,Innersloth,"Epic Games"
+84,"Rockstar Games",Activision
+85,Valve,Capcom
+86,"Epic Games",Nintendo
+87,"CD Projekt Red",Capcom
+88,Nintendo,Activision
+89,Valve,Activision
+90,"EA Sports","Take-Two Interactive"

Database Design/Video Game Reviews/game_modes.csv

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+game_mode_id,"Game Mode"
+1,Offline
+2,Online

Database Design/Video Game Reviews/game_qualities.csv

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+game_quality_id,"Graphics Quality","Soundtrack Quality","Story Quality"
+1,Medium,Average,Poor
+2,Low,Poor,Poor
+3,Low,Good,Average
+4,Medium,Good,Excellent
+5,High,Poor,Good
+6,Low,Average,Poor
+7,High,Excellent,Good
+8,Ultra,Poor,Poor
+9,Low,Average,Good
+10,Medium,Excellent,Good
+11,Medium,Average,Average
+12,Ultra,Average,Poor
+13,Ultra,Poor,Excellent
+14,Medium,Excellent,Excellent
+15,Medium,Good,Poor
+16,Ultra,Poor,Average
+17,High,Poor,Average
+18,High,Excellent,Excellent
+19,Medium,Good,Average
+20,Ultra,Average,Excellent
+21,Low,Good,Good
+22,High,Poor,Poor
+23,High,Average,Good
+24,Low,Poor,Excellent
+25,Ultra,Excellent,Good
+26,High,Good,Average
+27,High,Good,Poor
+28,Low,Average,Average
+29,Medium,Poor,Excellent
+30,Low,Poor,Good
+31,Ultra,Excellent,Average
+32,High,Excellent,Average
+33,High,Poor,Excellent
+34,Ultra,Average,Good
+35,Low,Average,Excellent
+36,Medium,Average,Good
+37,Ultra,Good,Average
+38,Medium,Average,Excellent
+39,Ultra,Good,Excellent
+40,High,Good,Excellent
+41,High,Average,Poor
+42,Medium,Poor,Poor
+43,Low,Excellent,Poor
+44,Low,Excellent,Good
+45,Low,Poor,Average
+46,Medium,Good,Good
+47,Low,Good,Poor
+48,Low,Excellent,Average
+49,Medium,Poor,Average
+50,Medium,Poor,Good
+51,Low,Excellent,Excellent
+52,High,Average,Excellent
+53,High,Excellent,Poor
+54,High,Average,Average
+55,Medium,Excellent,Average
+56,Ultra,Poor,Good
+57,Low,Good,Excellent
+58,Ultra,Good,Poor
+59,Ultra,Average,Average
+60,Ultra,Good,Good
+61,Medium,Excellent,Poor
+62,Ultra,Excellent,Excellent
+63,Ultra,Excellent,Poor
+64,High,Good,Good

Database Design/Video Game Reviews/genres.csv

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+genre_id,Genre
+1,Adventure
+2,Shooter
+3,Sports
+4,RPG
+5,Simulation
+6,Strategy
+7,Fighting
+8,Action
+9,Party
+10,Puzzle

Database Design/Video Game Reviews/multiplayers.csv

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+multiplayer_id,Multiplayer
+1,No
+2,Yes

Database Design/Video Game Reviews/platforms.csv

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+platform_id,Platform
+1,PC
+2,Mobile
+3,PlayStation
+4,Xbox
+5,"Nintendo Switch"

Database Design/Video Game Reviews/release_years.csv

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+release_year_id,"Release Year"
+1,2015
+2,2012
+3,2022
+4,2017
+5,2020
+6,2010
+7,2013
+8,2018
+9,2011
+10,2014
+11,2016
+12,2023
+13,2021
+14,2019

Database Design/Video Game Reviews/requires_special_devices.csv

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+special_device_id,"Requires Special Device"
+1,No
+2,Yes