How to Perform Database Regression Testing?

 

Why test a database?

Just as programmers are human and prone to errors, a database comprising mission critical information and lines of code on which programs are assembled can also be vulnerable to errors and requires regular maintenance and updates from time to time. Organizations utilize several programs daily in and day out which operate on a database which get altered based on the requirements, which affect database testing. The very best method to ensure the operation of those applications is to test them on a regular basis for new features and modifications made in the database.

What is regression testing of a database?

Regression testing of database refers to analyzing that the database for any new developments and upgrades made in the database to maintain its integrity intact even after alterations inside.

Measures for database regression testing

Measure 1: determine what to test in database regression testing?

When it comes to doing regression testing of a database, then it is not ever pre-defined about which part or kind of database has updated which needs retesting. The upgrades keep on occurring in various regions of Writers and database need to target those upgrades to get the absolute most out of the efforts.

1.       incoming data values,

2.       outgoing data values (generated for raw queries)

3.       database elements (tables, procedures)

4.       metadata for web applications

5.       data load that’s somewhat we call "load testing"

Step 2: determine when to check database for regression

If you change something in the existing database or application that runs on the database to refactor it add a new performance, you have to make sure that you have not broken anything. This requires you to perform regression testing to fix the mistakes or roll back the changes created in the database. 

Hence, regression testing is generally done after introducing changes inside the database to confirm the behavior of the modified code. It requires a huge number of new evaluations to retest to be able to verify and rectify the newly written code as well as integration with other systems or applications. 

In this approach of regression testing, you need to prepare test code parallel to growth to be able to test the company logic implemented in the database in addition to types, data validation rules, referential integrity, etc. in the database which works as a cycle as mentioned below:

1.       add a test

2.       run your tests

3.       update the code or make changes

4.       run your tests again

Measure 3: determine how to perform regression testing of database?

This is the most essential question which comes to the testers' mind when doing regression testing of the database. Regression testing can be performed either in a manual and automated way.

A frequent practice in an agile group is for sailors to get their own"sandboxes" with which to do the job. A sandbox is essentially a technical environment which isolates untested codes from the manufacturing repository. You can choose either of these based on the size of the tests and database.

my view, automatic regression testing is much more beneficial as it allows testers to check and manage a significant number of databases without manual intervention. To put it differently, it allows you to execute different tasks while the test tool proceeds to perform its job in the background and sends the report on bugs if any.

Automatic regression testing of this database seems easier and more convenient, while adding to the testers' productivity by saving a Large Amount of time Together with imparting These advantages:

1.       Entire database regression testing process gets automated

2.       Reduces testing attempts by 50% to 75%

3.       Testing is performed parallel to development

There are several test automation tools that help perform regression testing. These automation tools help in receiving the testing team up to speed with the database regression testing prerequisites at almost no time, overcoming several challenges they confront in manual testing.