update task.sql

[taniakolesnik]

No description provided.

[mateacademy-ai-mentor]

Review Summary

Your solution is approved because the task.sql script correctly creates the ShopDB database and all four required tables (Products, Customers, Orders, OrderItems) with the specified columns and compatible MySQL data types. Each table has an ID primary key with AUTO_INCREMENT, and the three required foreign keys are present and defined with ON DELETE SET NULL so that deleting a customer, order, or product does not break referential integrity. The creation order of tables is correct (referenced tables before dependent ones), and the foreign key columns are nullable, which is necessary for ON DELETE SET NULL to work without errors.

There are no critical blockers or requirement violations that would prevent the script from running successfully in a typical MySQL environment. For future improvement, you could make the script idempotent with patterns like CREATE DATABASE IF NOT EXISTS ShopDB; and CREATE TABLE IF NOT EXISTS ...; so it can be re-run without errors. It’s also a good practice to explicitly specify ENGINE=InnoDB and a default charset (for example, DEFAULT CHARSET=utf8mb4) on each table to guarantee foreign key support and consistent encoding across environments. Overall, you met the task requirements well—nice work on keeping the schema clean and aligned with the assignment expectations.

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