Merge pull request #49789 from JulianePadrao/update-evaluate-performance-improvements

Updates to [evaluate-performance-improvements]

Author: Stacyrch140

learn-pr/wwl-data-ai/evaluate-performance-improvements/1-introduction.yml

@@ -1,15 +1,15 @@
-### YamlMime:ModuleUnit
-uid: learn.wwl.evaluate-performance-improvements.introduction
-title: Introduction
-metadata:
-  title: Introduction
-  description: "Introduction"
-  ms.date: 07/13/2022
-  author: wwlpublish
-  ms.author: jupadrao
-  ms.topic: unit
-azureSandbox: false
-labModal: false
-durationInMinutes: 1
-content: |
-  [!include[](includes/1-introduction.md)]
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.introduction
+title: Introduction
+metadata:
+  title: Introduction
+  description: "Introduction"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labModal: false
+durationInMinutes: 3
+content: |
+  [!include[](includes/1-introduction.md)]

learn-pr/wwl-data-ai/evaluate-performance-improvements/2-describe-wait-statistics.yml

@@ -1,15 +1,15 @@
-### YamlMime:ModuleUnit
-uid: learn.wwl.evaluate-performance-improvements.describe-wait-statistics
-title: Describe wait statistics
-metadata:
-  title: Describe wait statistics
-  description: "Describe wait statistics"
-  ms.date: 07/13/2022
-  author: wwlpublish
-  ms.author: jupadrao
-  ms.topic: unit
-azureSandbox: false
-labModal: false
-durationInMinutes: 8
-content: |
-  [!include[](includes/2-describe-wait-statistics.md)]
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.describe-wait-statistics
+title: Describe wait statistics
+metadata:
+  title: Describe wait statistics
+  description: "Describe wait statistics"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labModal: false
+durationInMinutes: 8
+content: |
+  [!include[](includes/2-describe-wait-statistics.md)]

learn-pr/wwl-data-ai/evaluate-performance-improvements/3-tune-and-maintain-indexes.yml

@@ -1,15 +1,15 @@
-### YamlMime:ModuleUnit
-uid: learn.wwl.evaluate-performance-improvements.tune-and-maintain-indexes
-title: Tune and maintain indexes
-metadata:
-  title: Tune and maintain indexes
-  description: "Tune and maintain indexes"
-  ms.date: 07/13/2022
-  author: wwlpublish
-  ms.author: jupadrao
-  ms.topic: unit
-azureSandbox: false
-labModal: false
-durationInMinutes: 6
-content: |
-  [!include[](includes/3-tune-and-maintain-indexes.md)]
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.tune-and-maintain-indexes
+title: Tune and maintain indexes
+metadata:
+  title: Tune and maintain indexes
+  description: "Tune and maintain indexes"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labModal: false
+durationInMinutes: 6
+content: |
+  [!include[](includes/3-tune-and-maintain-indexes.md)]

learn-pr/wwl-data-ai/evaluate-performance-improvements/4-understand-query-hints.yml

@@ -1,15 +1,15 @@
-### YamlMime:ModuleUnit
-uid: learn.wwl.evaluate-performance-improvements.understand-query-hints
-title: Understand query hints
-metadata:
-  title: Understand query hints
-  description: "Understand query hints"
-  ms.date: 07/13/2022
-  author: wwlpublish
-  ms.author: jupadrao
-  ms.topic: unit
-azureSandbox: false
-labModal: false
-durationInMinutes: 5
-content: |
-  [!include[](includes/4-understand-query-hints.md)]
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.understand-query-hints
+title: Understand query hints
+metadata:
+  title: Understand query hints
+  description: "Understand query hints"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labModal: false
+durationInMinutes: 4
+content: |
+  [!include[](includes/4-understand-query-hints.md)]

learn-pr/wwl-data-ai/evaluate-performance-improvements/4b-explore-performance.yml

@@ -0,0 +1,15 @@
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.explore-performance
+title: Explore performance scenarios
+metadata:
+  title: Explore performance scenarios
+  description: "Explore performance scenarios"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labModal: false
+durationInMinutes: 5
+content: |
+  [!include[](includes/4b-explore-performance.md)]

learn-pr/wwl-data-ai/evaluate-performance-improvements/5-exercise-isolate-problem-areas-poor-performing-queries.yml

@@ -1,16 +1,16 @@
-### YamlMime:ModuleUnit
-uid: learn.wwl.evaluate-performance-improvements.exercise-isolate-problem-areas-poor-performing-queries
-title: 'Exercise: Isolate problem areas in poorly performing queries'
-metadata:
-  title: 'Exercise: Isolate problem areas in poorly performing queries'
-  description: "Exercise: Isolate problem areas in poorly performing queries"
-  ms.date: 07/13/2022
-  author: wwlpublish
-  ms.author: jupadrao
-  ms.topic: unit
-azureSandbox: false
-labId: 119515
-labModal: true
-durationInMinutes: 15
-content: |
-  [!include[](includes/5-exercise-isolate-problem-areas-poor-performing-queries.md)]
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.exercise-isolate-problem-areas-poor-performing-queries
+title: 'Exercise: Isolate problem areas in poorly performing queries'
+metadata:
+  title: 'Exercise: Isolate problem areas in poorly performing queries'
+  description: "Exercise: Isolate problem areas in poorly performing queries"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labId: 119515
+labModal: true
+durationInMinutes: 15
+content: |
+  [!include[](includes/5-exercise-isolate-problem-areas-poor-performing-queries.md)]

learn-pr/wwl-data-ai/evaluate-performance-improvements/6-knowledge-check.yml

@@ -1,51 +1,51 @@
-### YamlMime:ModuleUnit
-uid: learn.wwl.evaluate-performance-improvements.knowledge-check
-title: Knowledge check
-metadata:
-  title: Knowledge check
-  description: "Knowledge check"
-  ms.date: 07/13/2022
-  author: wwlpublish
-  ms.author: jupadrao
-  ms.topic: unit
-azureSandbox: false
-labModal: false
-durationInMinutes: 5
-content: |
-  [!include[](includes/6-knowledge-check.md)]
-quiz:
-  title: "Check your knowledge"
-  questions:
-  - content: "What type of index is best used on a data warehouse fact table?"
-    choices:
-    - content: "Clustered Columnstore"
-      isCorrect: true
-      explanation: "Correct. A clustered columnstore index will provide the best performance for a data warehouse fact table."
-    - content: "Nonclustered Columnstore"
-      isCorrect: false
-      explanation: "Incorrect. Nonclustered columnstore indexes will consume unnecessary space."
-    - content: "Clustered b-tree"
-      isCorrect: false
-      explanation: "Incorrect. A b-tree index won't match the performance of a columnstore index for scan operations."
-  - content: "Which DMV provides information about server level wait statistics?"
-    choices:
-    - content: "sys.dm_db_index_physical_stats"
-      isCorrect: false
-      explanation: "Incorrect. This view shows fragmentation for indexes."
-    - content: "sys.dm_os_wait_stats"
-      isCorrect: true
-      explanation: "Correct. This shows the wait stats across the server."
-    - content: "sys.dm_exec_session_wait_stats"
-      isCorrect: false
-      explanation: "Incorrect. This DMV shows waits for a given session, but not across sessions."
-  - content: "Which DMV can you use to capture the last Actual Execution Plan for a given query?"
-    choices:
-    - content: "sys.dm_exec_cached_plans"
-      isCorrect: false
-      explanation: "Incorrect. This DMV has the information needed to retrieve the plan from cache."
-    - content: "sys.dm_exec_query_plan"
-      isCorrect: false
-      explanation: "Incorrect. This DMV just has the estimated execution plans that are in the plan cache."
-    - content: "sys.dm_exec_query_plan_stats"
-      isCorrect: true
-      explanation: "Correct. In SQL Server 2019 you can query sys.dm_exec_query_plan_stats to get the last actual execution plan for a query."
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.knowledge-check
+title: Knowledge check
+metadata:
+  title: Knowledge check
+  description: "Knowledge check"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labModal: false
+durationInMinutes: 5
+content: |
+  [!include[](includes/6-knowledge-check.md)]
+quiz:
+  title: "Check your knowledge"
+  questions:
+  - content: "What type of index is best used on a data warehouse fact table?"
+    choices:
+    - content: "Clustered Columnstore"
+      isCorrect: true
+      explanation: "Correct. A clustered columnstore index provides the best performance for a data warehouse fact table."
+    - content: "Nonclustered Columnstore"
+      isCorrect: false
+      explanation: "Incorrect. Nonclustered columnstore indexes consume unnecessary space."
+    - content: "Clustered b-tree"
+      isCorrect: false
+      explanation: "Incorrect. A b-tree index won't match the performance of a columnstore index for scan operations."
+  - content: "Which DMV provides information about server level wait statistics?"
+    choices:
+    - content: "sys.dm_db_index_physical_stats"
+      isCorrect: false
+      explanation: "Incorrect. This view shows fragmentation for indexes."
+    - content: "sys.dm_os_wait_stats"
+      isCorrect: true
+      explanation: "Correct. This shows the wait stats across the server."
+    - content: "sys.dm_exec_session_wait_stats"
+      isCorrect: false
+      explanation: "Incorrect. This DMV shows waits for a given session, but not across sessions."
+  - content: "Which DMV can you use to capture the last Actual Execution Plan for a given query?"
+    choices:
+    - content: "sys.dm_exec_cached_plans"
+      isCorrect: false
+      explanation: "Incorrect. This DMV has the information needed to retrieve the plan from cache."
+    - content: "sys.dm_exec_query_plan"
+      isCorrect: false
+      explanation: "Incorrect. This DMV just has the estimated execution plans that are in the plan cache."
+    - content: "sys.dm_exec_query_plan_stats"
+      isCorrect: true
+      explanation: "Correct. You can query sys.dm_exec_query_plan_stats to get the last actual execution plan for a query."

learn-pr/wwl-data-ai/evaluate-performance-improvements/7-summary.yml

@@ -1,15 +1,15 @@
-### YamlMime:ModuleUnit
-uid: learn.wwl.evaluate-performance-improvements.summary
-title: Summary
-metadata:
-  title: Summary
-  description: "Summary"
-  ms.date: 07/13/2022
-  author: wwlpublish
-  ms.author: jupadrao
-  ms.topic: unit
-azureSandbox: false
-labModal: false
-durationInMinutes: 1
-content: |
-  [!include[](includes/7-summary.md)]
+### YamlMime:ModuleUnit
+uid: learn.wwl.evaluate-performance-improvements.summary
+title: Summary
+metadata:
+  title: Summary
+  description: "Summary"
+  ms.date: 03/31/2025
+  author: JulianePadrao
+  ms.author: jupadrao
+  ms.topic: unit
+azureSandbox: false
+labModal: false
+durationInMinutes: 1
+content: |
+  [!include[](includes/7-summary.md)]

learn-pr/wwl-data-ai/evaluate-performance-improvements/includes/1-introduction.md

@@ -1,9 +1,7 @@
-One of the challenges of the DBA’s role is to evaluate the changes they make to code or data structures on a busy, production system. While tuning a single query in isolation offers easy metrics such as elapsed time or logical reads, making minor tweaks on a busy system may require deeper evaluation.
+One of the challenges faced by database administrators is evaluating the changes made to code or data structures on a busy production system. While tuning a single query in isolation provides straightforward metrics such as elapsed time or logical reads, making minor adjustments on a busy system requires a more comprehensive evaluation.
 
-## Learning objectives:
+In a production environment, numerous factors can influence the performance of a query or data structure. These include concurrent user activity, system resource utilization, and the overall workload. As a result, you must consider the broader context when assessing the effectiveness of their changes. This involves monitoring system performance over time, analyzing query execution plans, and understanding the interactions between different components of the database.
 
-At the end of this module, you'll be able to:
+Additionally, you need to be aware of potential side effects that may arise from their modifications. For instance, a change that improves the performance of one query might inadvertently degrade the performance of another. Therefore, thorough testing and validation are essential to ensure that any adjustments made don't negatively impact the overall system.
 
-- Describe wait statistics
-- Understand important aspects when tuning indexes
-- Explore when to use query hints
+Ultimately, the goal is to achieve a balance between optimizing individual queries and maintaining the stability and efficiency of the entire production system. By adopting a comprehensive approach to evaluation, you can ensure that their changes lead to meaningful improvements without compromising the overall performance of the database.