114 lines
3.6 KiB
SQL
114 lines
3.6 KiB
SQL
-- Disable foreign key checks
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SET FOREIGN_KEY_CHECKS = 0;
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-- Temporary tables for batch metrics processing
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CREATE TABLE IF NOT EXISTS temp_sales_metrics (
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product_id BIGINT NOT NULL,
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daily_sales_avg DECIMAL(10,3),
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weekly_sales_avg DECIMAL(10,3),
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monthly_sales_avg DECIMAL(10,3),
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total_revenue DECIMAL(10,3),
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avg_margin_percent DECIMAL(10,3),
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first_sale_date DATE,
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last_sale_date DATE,
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PRIMARY KEY (product_id)
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);
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CREATE TABLE IF NOT EXISTS temp_purchase_metrics (
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product_id BIGINT NOT NULL,
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avg_lead_time_days INT,
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last_purchase_date DATE,
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last_received_date DATE,
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PRIMARY KEY (product_id)
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);
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-- New table for product metrics
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CREATE TABLE IF NOT EXISTS product_metrics (
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product_id BIGINT NOT NULL,
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last_calculated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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-- Sales velocity metrics
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daily_sales_avg DECIMAL(10,3),
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weekly_sales_avg DECIMAL(10,3),
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monthly_sales_avg DECIMAL(10,3),
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-- Stock metrics
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days_of_inventory INT,
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weeks_of_inventory INT,
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reorder_point INT,
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safety_stock INT,
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-- Financial metrics
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avg_margin_percent DECIMAL(10,3),
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total_revenue DECIMAL(10,3),
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-- Purchase metrics
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avg_lead_time_days INT,
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last_purchase_date DATE,
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last_received_date DATE,
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-- Classification
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abc_class CHAR(1),
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stock_status VARCHAR(20),
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PRIMARY KEY (product_id),
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FOREIGN KEY (product_id) REFERENCES products(product_id) ON DELETE CASCADE
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);
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-- New table for time-based aggregates
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CREATE TABLE IF NOT EXISTS product_time_aggregates (
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product_id BIGINT NOT NULL,
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year INT NOT NULL,
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month INT NOT NULL,
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-- Sales metrics
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total_quantity_sold INT DEFAULT 0,
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total_revenue DECIMAL(10,3) DEFAULT 0,
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total_cost DECIMAL(10,3) DEFAULT 0,
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order_count INT DEFAULT 0,
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-- Stock changes
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stock_received INT DEFAULT 0,
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stock_ordered INT DEFAULT 0,
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-- Calculated fields
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avg_price DECIMAL(10,3),
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profit_margin DECIMAL(10,3),
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PRIMARY KEY (product_id, year, month),
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FOREIGN KEY (product_id) REFERENCES products(product_id) ON DELETE CASCADE,
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INDEX idx_date (year, month)
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);
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-- New table for vendor performance
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CREATE TABLE IF NOT EXISTS vendor_metrics (
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vendor VARCHAR(100) NOT NULL,
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last_calculated_at TIMESTAMP NOT NULL,
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avg_lead_time_days DECIMAL(10,3),
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on_time_delivery_rate DECIMAL(5,2),
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order_fill_rate DECIMAL(5,2),
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total_orders INT,
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total_late_orders INT,
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PRIMARY KEY (vendor)
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);
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-- Re-enable foreign key checks
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SET FOREIGN_KEY_CHECKS = 1;
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-- Create optimized indexes for metrics calculations
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CREATE INDEX idx_orders_metrics ON orders (product_id, date, canceled, quantity, price);
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CREATE INDEX idx_purchase_orders_metrics ON purchase_orders (product_id, date, status, ordered, received);
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-- Create view for inventory health (after all tables are created)
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CREATE OR REPLACE VIEW inventory_health AS
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SELECT
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p.product_id,
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p.SKU,
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p.title,
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p.stock_quantity,
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COALESCE(pm.daily_sales_avg, 0) as daily_sales_avg,
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COALESCE(pm.days_of_inventory, 0) as days_of_inventory,
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COALESCE(pm.reorder_point, 0) as reorder_point,
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COALESCE(pm.safety_stock, 0) as safety_stock,
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CASE
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WHEN p.stock_quantity <= COALESCE(pm.safety_stock, 0) THEN 'Critical'
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WHEN p.stock_quantity <= COALESCE(pm.reorder_point, 0) THEN 'Reorder'
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WHEN p.stock_quantity > (COALESCE(pm.daily_sales_avg, 0) * 90) THEN 'Overstocked'
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ELSE 'Healthy'
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END as stock_status
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FROM
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products p
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LEFT JOIN
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product_metrics pm ON p.product_id = pm.product_id
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WHERE
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p.managing_stock = true; |