Learn how to override db_schema Magento 2 from our experts. Our Magento Support team is here to help you with your questions and concerns.

How to Override db_schema Magento 2

According to our experts, the db_schema term refers to the database schema in Magento 2. In other words, it defines the structure and organization. This includes the database tables, columns, indexes, and so on.

In fact, override db_schema in Magento 2 refers to modifying or extending the default database schema. This helps customize as well as add new functionality to the system.

Let’s take a look at the two different approaches available to modify the db_schema in Magento 2:

• Via declarative schema:

  The declarative schema approach was introduced in version 2.3. It allows us to define the structure of the database using XML files. In other words, we can create or modify tables, columns, indexes, constraints, and other database elements using these XML files.

  Furthermore, when we make changes to the declarative schema, we can run a setup upgrade command to apply those changes to the database.
• Via database setup scripts:

  This involves writing custom database setup scripts using PHP and SQL. We can create a custom module and define the necessary database modifications in the module’s setup scripts. Usually, these scripts handle tasks like creating new tables, altering existing tables, adding or modifying columns, and so on.

  In fact, when we run the setup upgrade command, Magento executes these scripts to apply the changes to the database.

According to our experts, we can customize the database structure to meet our needs in Magento 2. This helps us make changes as per our requirements.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

In summary, our Support Techs demonstrated how to override db_schema Magento 2.