Backend Testing Tutorial (Examples)

What is Backend Testing?

Backend Testing is a testing method that checks the server side or database of web applications or software. Backend testing aims to test the application layer or database layer to ensure that the web application or software is free from database defects like deadlock, data corruption, or data loss.

Backend testing is also known as Database Testing. The data entered in the front end will be stored in the back-end database. The database may be SQL Server, MySQL, Oracle, DB2, etc. The data will be organized in the tables as records and used to support the page’s content.

Database or backend testing is important because if it is not done properly, it may cause some serious complications like deadlock, data corruption, data loss, etc.

How to do Backend Testing

Database testing mainly includes validating

  • Schema
  • Database tables
  • Columns
  • Keys and Indexes
  • Stored procedures
  • Triggers
  • Database server validations
  • Validating data duplication

Backend Testing

In back-end testing, you are not required to use the GUI; you can directly pass the request through some browser with the parameters required for the function and get a response in some default format. Example, XML or JSON. You also need to connect to the database directly and verify the data using SQL queries. Through log files, debugging can be done.

There are various phases in back-end testing. The first step is to acquire design specifications for a database server. The next step is to test the specification design, followed by implementing the tests in this design with SQL code.

Types of database testing

The types of database testing include

  • Structural Testing
  • Functional Testing
  • Non-Functional Testing

Tools used for database testing

Some of the useful tools used for database testing include

1) Database Performance Analyzer

SolarWinds Database Performance Analyzer is performance monitoring and analysis tool for database admin. It also finds the reason of bottlenecks and reduces the overall cost of database operations.

SolarWinds

Features:

  • Monitor capacity constraints, queries, and server health performance
  • Expert database and SQL query tuning advisors
  • Quickly find the cause of complex problems
  • Identify database problems in real-time
  • Cross-vendor database support from a single interface
  • Low overhead on monitored databases
  • Blocking and Deadlock analysis
  • Analyze every factor that impacts SQL Server execution
  • Monitors database in hybrid environments, on-premises, virtualized, and in the cloud
  • Helps proactively tune queries so applications can respond faster

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2) DBVisualizer

DBVisualizer is a universal database tool for developers, analysts and database administrators/users. It provides features to write SQL to query and visualize your data. Design and development features to manage your databases, tables, relations, indexes, triggers, users and etc. DbVisualizer has been downloaded over 5 million times and is being used in over 143 countries.

DBVisualizer

Features:

  • Free version available
  • Free evaluation of Pro version
  • Cross-platform
  • Query optimization with an explain plan feature
  • Visual query builder using drag and drop
  • Flexible SQL scripts execution with parameter support
  • SQL formatting
  • Command-line interface for headless execution
  • And much, much more..

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Advantages for back-end testing

  • Back-end testing is not like a Black Box Testing
  • Full control of Test coverage and depth
  • In the early development stage, many bugs can be effectively found

In order to do the back-end testing, the tester is expected to have a strong background in the database server and knowledge of structured query language.

Further Reading – https://www.guru99.com/data-testing.html