Monthly Reports in SQL | LeetCode 1193: Monthly Transactions I | SQL Interview Prep

Generating monthly financial reports is a core task for any SQL developer. In this TextroVert tutorial, we solve LeetCode 1193. We’ll show you how to group data by month and country while simultaneously calculating total and approved transaction metrics. What you'll learn: • Using DATE_FORMAT or LEFT() to extract "YYYY-MM" from a date. • Conditional Aggregation: How to use SUM(IF(state = 'approved', 1, 0)) or SUM(state = 'approved') to count specific records. • Calculating the total amount vs. the approved amount in a single query.