Azure DTU

 In Azure SQL Database, DTU stands for Database Transaction Unit — it’s a performance metric that combines CPU, memory, reads, and writes into a single measure.

Think of it as a “power level” — the higher the DTU, the more workload the database can handle.

How to Check DTU Usage

You can monitor DTU utilization via:

Azure Portal → SQL Database → Monitoring → DTU usage (%)

Query via T-SQL

SELECT * FROM sys.dm_db_resource_stats ORDER BY end_time DESC;

You can estimate your DTU requirement using Microsoft’s DTU Calculator:

https://dtucalculator.azurewebsites.net