How can the use of a separate table for storing multiple dates associated with an exhibit improve the efficiency of the database queries in PHP?

When storing multiple dates associated with an exhibit in a single table, it can lead to data redundancy and inefficiency in database queries. By using a separate table to store these dates and establishing a one-to-many relationship between the exhibits table and the dates table, we can improve the efficiency of database queries in PHP. This allows for better organization of data and reduces the likelihood of errors when querying for specific dates associated with an exhibit.

// Create a separate table for storing dates associated with exhibits
CREATE TABLE exhibit_dates (
    id INT PRIMARY KEY AUTO_INCREMENT,
    exhibit_id INT,
    date DATE,
    FOREIGN KEY (exhibit_id) REFERENCES exhibits(id)
);

// Query to retrieve all dates associated with a specific exhibit
SELECT date FROM exhibit_dates WHERE exhibit_id = :exhibit_id;