update

Queries.sql

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+USE lego;
+
+-- 1.	Which LEGO themes have the most sets?
+-- Identify the themes that feature the highest number of sets to understand their popularity.
+
+    SELECT 
+        t.name AS theme_name,
+        COUNT(s.set_num) AS num_sets
+    FROM 
+        sets s
+    JOIN 
+        themes t ON s.theme_id = t.id
+    WHERE 
+        t.name LIKE '%Star Wars%'  -- Adjust the condition to match your theme naming convention
+    GROUP BY 
+        t.name
+    ORDER BY 
+        num_sets DESC;
+
+
+-- # 2.	What is the average part count per set for each theme?
+-- Analyze the complexity of sets within different themes by calculating the average number of parts.
+
+ SELECT 
+        t.name AS theme_name,
+        AVG(s.num_parts) AS avg_part_count
+    FROM 
+        sets s
+    JOIN 
+        themes t ON s.theme_id = t.id
+    WHERE 
+        t.name LIKE '%Star Wars%'  -- Adjust the condition to match your theme naming convention
+    GROUP BY 
+        t.name;
+
+
+
+-- 3.	How many unique colors are used across all themes?
+-- Determine the overall color diversity in LEGO sets by counting unique colors.
+
+
+    SELECT 
+        t.name AS theme_name,
+        COUNT(DISTINCT c.id) AS unique_colors
+    FROM 
+        colors c
+    JOIN 
+        inventory_parts ip ON c.id = ip.color_id
+    JOIN 
+        inventories i ON ip.inventory_id = i.id
+    JOIN 
+        sets s ON i.set_num = s.set_num
+    JOIN 
+        themes t ON s.theme_id = t.id
+    WHERE 
+        t.name LIKE '%Star Wars%'
+    GROUP BY 
+        t.name;
+
+--  4.	Which sets have the highest part count?
+-- Identify the specific sets that are the most complex in terms of the number of parts used.
+    SELECT 
+        s.set_num,
+        s.name,
+        s.num_parts
+    FROM 
+        sets s
+    ORDER BY 
+        s.num_parts DESC
+    LIMIT 10;
+
+-- 5.	How has the number of unique parts used in sets evolved over the years?
+-- Analyze trends in the use of unique parts in LEGO sets over time.
+    SELECT 
+        s.year,
+        COUNT(DISTINCT ip.part_num) AS unique_parts
+    FROM 
+        sets s
+    JOIN 
+        inventories i ON s.set_num = i.set_num
+    JOIN 
+        inventory_parts ip ON i.id = ip.inventory_id
+    GROUP BY 
+        s.year
+    ORDER BY 
+        s.year;
+
+
+-- 6.	What is the distribution of sets across different years?
+-- Understand how many sets were released each year, which can indicate market activity and trends.
+    SELECT 
+        year,
+        COUNT(set_num) AS num_sets
+    FROM 
+        sets
+    GROUP BY 
+        year
+    ORDER BY 
+        year;
+
+-- 7.	Which parent themes have the highest average number of unique parts per set?
+--  Determine which themes are most innovative by looking at the average number of unique parts used in their sets.
+
+SELECT 
+        t.parent_id,
+        pt.name AS parent_theme_name,
+        AVG(unique_parts) AS avg_unique_parts
+    FROM (
+        SELECT 
+            s.theme_id,
+            COUNT(DISTINCT ip.part_num) AS unique_parts
+        FROM 
+            sets s
+        JOIN 
+            inventories i ON s.set_num = i.set_num
+        JOIN 
+            inventory_parts ip ON i.id = ip.inventory_id
+        GROUP BY 
+            s.set_num
+    ) AS unique_parts_per_set
+    JOIN 
+        themes t ON unique_parts_per_set.theme_id = t.id
+    JOIN 
+        themes pt ON t.parent_id = pt.id  -- Joining to get the parent theme name
+    GROUP BY 
+        t.parent_id, pt.name
+    ORDER BY 
+        avg_unique_parts DESC  -- Order by average unique parts in descending order
+    LIMIT 20;  -- Limit to top 20 results
+
+
+--  8.	What is the total number of parts used in all sets of  specific theme?
+--  Calculate the total part count for a specific theme to assess its material usage.
+
+query = f
+    SELECT 
+        t.name AS theme_name,
+        SUM(s.num_parts) AS total_parts
+    FROM 
+        sets s
+    JOIN 
+        themes t ON s.theme_id = t.id
+    WHERE 
+        t.name IN ({themes_placeholder})
+    GROUP BY 
+        t.name;
+
+--  9.	Which themes have experienced the most significant change in average part count over time?
+-- Identify themes that have increased or decreased in complexity based on average part counts across years.
+
+SELECT 
+        t.name AS theme_name,
+        s.year,
+        AVG(s.num_parts) AS avg_part_count
+    FROM 
+        sets s
+    JOIN 
+        themes t ON s.theme_id = t.id
+    GROUP BY 
+        t.name, s.year
+    ORDER BY 
+        t.name, s.year;
+
+
+-- 10.	How do the number of sets and average part count correlate within each theme?
+-- Analyze the relationship between the number of sets and the average part count for parent themes to see if more sets mean more complex designs.
+
+    SELECT 
+        t.parent_id,
+        t.name AS theme_name,
+        COUNT(s.set_num) AS num_sets,
+        AVG(s.num_parts) AS avg_part_count
+    FROM 
+        sets s
+    JOIN 
+        themes t ON s.theme_id = t.id
+    GROUP BY 
+        t.parent_id, t.name;

Seeding.sql

@@ -0,0 +1,76 @@
+-- Load data into part_categories
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/part_categories.csv'
+INTO TABLE part_categories
+FIELDS TERMINATED BY ',' 
+ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(id, name);
+
+-- Load data into parts
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/parts.csv'
+INTO TABLE parts
+FIELDS TERMINATED BY ',' 
+ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(part_num, name, part_cat_id);
+
+
+-- Load data into themes
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/themes.csv'
+INTO TABLE themes
+FIELDS TERMINATED BY ',' 
+OPTIONALLY ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(id, name, parent_id)
+SET parent_id = NULLIF(parent_id, '');
+
+-- Load data into colors
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/colors.csv'
+INTO TABLE colors
+FIELDS TERMINATED BY ',' 
+ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(id, name, rgb, is_trans);
+
+
+-- Load data into sets
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/sets.csv'
+INTO TABLE sets
+FIELDS TERMINATED BY ',' 
+ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(set_num, name, year, theme_id, num_parts);
+
+
+
+-- Load data into inventories
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/inventories.csv'
+INTO TABLE inventories
+FIELDS TERMINATED BY ',' 
+ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(id, version, set_num);
+
+-- Load data into inventory_parts
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/inventory_parts.csv'
+INTO TABLE inventory_parts
+FIELDS TERMINATED BY ',' 
+ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(inventory_id, part_num, color_id, quantity, is_spare);
+
+-- Load data into inventory_sets
+LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 9.0/Uploads/inventory_sets.csv'
+INTO TABLE inventory_sets
+FIELDS TERMINATED BY ',' 
+ENCLOSED BY '"'
+LINES TERMINATED BY '\n'
+IGNORE 1 LINES
+(inventory_id, set_num, quantity);