<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Create a relational database schema to store data of products sold in an e-commerce store.
Table: Products 
Columns: productId (primary key), productName, productCategory, price<|im_end|>
<|im_start|>assistant
CREATE TABLE Products ( 
  productId INT PRIMARY KEY, 
  productName VARCHAR(255), 
  productCategory VARCHAR(255), 
  price DECIMAL 
);<|im_end|>
