Using ENUM in MySQL Columns

Using ENUM in MySQL Columns

ENUMs are very powerful definitions and they help attain data validation when the values are pre-defined. With this you can avoid application-level validation or the same can be extracted from the database and used in applications to define the validation data.

In the DDL below, we are defining a column named transport_type with its values defined in ENUM. This will ensure that the values are always validated by the database before any insertion or updation.

CREATE TABLE TransportTypes (transport_type_id INT,transport_type ENUM('Bus','Train','Flight'));

The following is valid SQL:

-- -- -- -- -- -- -- -- -- -- -- --INSERT INTO TransportTypes VALUES (1,'Bus'), (2,'Train'), (3,'Flight');Below is an invalid SQL query. This results in error during the execution:
-- -- -- -- -- -- -- -- -- -- -- --UPDATE TransportTypes set transport_type ='Train2' where transport_type_id=2;
Share the Post:
Heading photo, Metadata.

What is Metadata?

What is metadata? Well, It’s an odd concept to wrap your head around. Metadata is essentially the secondary layer of data that tracks details about the “regular” data. The regular

XDR solutions

The Benefits of Using XDR Solutions

Cybercriminals constantly adapt their strategies, developing newer, more powerful, and intelligent ways to attack your network. Since security professionals must innovate as well, more conventional endpoint detection solutions have evolved

AI is revolutionizing fraud detection

How AI is Revolutionizing Fraud Detection

Artificial intelligence – commonly known as AI – means a form of technology with multiple uses. As a result, it has become extremely valuable to a number of businesses across

AI innovation

Companies Leading AI Innovation in 2023

Artificial intelligence (AI) has been transforming industries and revolutionizing business operations. AI’s potential to enhance efficiency and productivity has become crucial to many businesses. As we move into 2023, several

data fivetran pricing

Fivetran Pricing Explained

One of the biggest trends of the 21st century is the massive surge in analytics. Analytics is the process of utilizing data to drive future decision-making. With so much of

kubernetes logging

Kubernetes Logging: What You Need to Know

Kubernetes from Google is one of the most popular open-source and free container management solutions made to make managing and deploying applications easier. It has a solid architecture that makes