SQL for QA & SDET

Strong QA and SDET work often ends in the database. This course builds practical SQL for validation, joins, aggregates and the queries you use to verify what the UI claims is true.

• Manual testers validating data
• QA engineers strengthening backend checks
• Automation engineers needing SQL fluency
• SDET aspirants preparing for data questions

• SQL Fundamentals
• SELECT
• WHERE
• ORDER BY
• GROUP BY
• HAVING
• Aggregate Functions
• Joins
• Subqueries
• Nested Queries
• Data Validation
• Database Testing
• Test Data Verification
• Real-world QA Queries

• Data verification query set for a sample schema
• Join-heavy validation scenarios
• Test data checks paired with UI/API outcomes

Project examples are instructional practice scenarios — not client case studies or partnership claims.

Practice the SQL patterns interviewers commonly use to probe data literacy in QA / SDET roles.

• Write SELECT queries with filters and ordering
• Use joins, aggregates and subqueries for validation
• Design database testing checks
• Verify test data behind UI and API flows