SQL in Marketing Analytics

Context

Marketing analysts use SQL constantly to turn raw event and campaign data into reporting, audience insights, and performance metrics. Interviewers ask this question to see whether you understand both the business use cases and the SQL patterns behind them.

Core question

Explain how you would use SQL in a marketing analytics role. In your answer, discuss:

1. The types of marketing questions SQL helps answer
2. The common SQL operations you would use for campaign and funnel analysis
3. How you would calculate and validate key metrics such as opens, clicks, conversions, and revenue
4. How SQL fits into recurring dashboards, ad hoc analysis, and data quality checks

Scope guidance

The interviewer is usually looking for a practical explanation rather than deep database theory. Focus on how SQL is used day to day: filtering data, aggregating metrics, segmenting users, analyzing time trends, and preparing clean datasets for reporting or experimentation.