Name: Do more with Database functions - 마무리해 볼까요?
Uploaded: 2026-02-19T00:00:00Z
Description: Discover the power of database functions with DSUM, DCOUNT, and DAVERAGE. Master how to sum, count, and average data according to specific criteria. The chapter also includes troubleshooting advice for common errors, helping you confidently tackle complex data aggregation tasks.