Microsoft Azure Architect Design (AZ-304) 2025 – 400 Free Practice Questions to Pass the Exam

Choosing Query Performance Insight as the solution for identifying queries that take the longest time to execute in an Azure SQL database is well-founded. This tool provides a focused analysis of query performance by offering insights into the most resource-intensive queries within your database over time. It allows users to drill down into detailed metrics such as CPU usage and execution duration, making it easier to pinpoint which queries are causing performance bottlenecks.

Query Performance Insight also aggregates data to show trends and performance statistics, which can help in understanding the ongoing performance behavior of queries, thereby facilitating targeted optimizations. By identifying high-impact queries, developers and database administrators can take specific actions to enhance performance, such as tuning queries, adding indexes, or modifying workloads based on the insightful data provided.

On the other hand, while other options like SQL Database Advisor, Azure Monitor, and Performance Recommendations offer valuable insights into various aspects of database performance and management, they do not specifically focus on query execution times and the performance characteristics of individual queries as comprehensively as Query Performance Insight does. Therefore, for the specific goal of identifying long-running queries, Query Performance Insight stands out as the most effective option.