Why is using BLOB data type for a calendar database considered unnecessary and inefficient?

Using BLOB data type for a calendar database is considered unnecessary and inefficient because it stores binary data, such as images or files, rather than structured data like dates and events. Storing calendar data as BLOBs can make it difficult to query and manipulate the data effectively. It is more efficient to use appropriate data types like DATE, DATETIME, or VARCHAR for storing calendar information in a structured format.

// Example of creating a calendar event table with appropriate data types

CREATE TABLE calendar_events (
    event_id INT AUTO_INCREMENT PRIMARY KEY,
    event_name VARCHAR(50) NOT NULL,
    event_date DATE NOT NULL,
    event_description TEXT
);