What are the potential pitfalls of using multiple columns to represent e-Parts in a table in PHP?

Using multiple columns to represent e-Parts in a table can lead to data redundancy and inconsistency, making it difficult to maintain and update the information. To solve this issue, it is recommended to use a separate table to store e-Parts information and establish a relationship between the two tables using foreign keys.

// Create a separate table to store e-Parts information
CREATE TABLE eParts (
    id INT PRIMARY KEY,
    name VARCHAR(50),
    description TEXT,
    price DECIMAL(10,2)
);

// Create a table to store the relationship between e-Parts and other entities
CREATE TABLE ePartRelationships (
    ePart_id INT,
    entity_id INT,
    entity_type VARCHAR(50),
    FOREIGN KEY (ePart_id) REFERENCES eParts(id)
);