🔵SQL

What is SQL?

SQL, or Structured Query Language, is a language to talk to databases. It allows you to select specific data and to build complex reports. Today, SQL is a universal language of data. It is used in practically all technologies that process data.

Why is SQL Used?

• Query and analyze data in relational databases

• Perform data manipulation like updates, inserts and deletes

• Create and modify database structures like tables, indexes, views etc.

• Control permissions and access to database objects

• Write business logic using stored procedures and functions

SQL's Role in QA

Testing Database Components SQL can be used to write unit and integration tests for database objects like stored procedures, functions, triggers etc.

Validating Data Integrity SQL provides the capability to query and validate the state of a database during testing to ensure data integrity.

Performance & Load Testing SQL queries simulate production workloads on a test database to baseline and stress test performance.

Test Data Setup & Verification SQL enables easy data setup for testing and also verification of the database state after testing.

Automated Checks & Reporting SQL allows creating automated checks and generating test reports by querying results.

In summary, SQL is a critical QA tool for database validation, testing and test reporting.