Skip to main content

SQL Azure DB and include live query statistics

אני אוהב לאחד חידושים.
כאשר יצא SQLServer 2014
יצא גם DMV חדש
dm_exec_query_profiles
זה נתן לנו יכולת לעקוב אחרי התקדמות פעילויות כמו יצירת אינדקס או
Rebuild.
להלן לינק נחמד מאד שמסביר את זה
 
 
יש מספר סקריפטים שמראים כיצד להשתמש ולראות את התקדמות הבניה של האינדקס למשל:
 
 
SELECT
node_id,
physical_operator_name,
SUM(row_count) row_count,
SUM(estimate_row_count) AS estimate_row_count,
CAST(SUM(row_count)*100 AS float)/SUM(estimate_row_count) as estimate_percent_complete
FROM sys.dm_exec_query_profiles
WHERE session_id=@SPID 
GROUP BY node_id,physical_operator_name
ORDER BY node_id desc;
 
ב SQL Azure אני משתמש בו לעיתים תכופות - אולם פה אני מנצל את היכולת של ה PAAS, אני מעלה ל
Tielr גבוה מאד מריץ את מה שצריך להריץ - יודע בדיוק מתי זה ייגמר באמצעות שאילתא זו
ואז מוריד את ה Tier חזרה.
 
כמו שאמרתי אני משלב 2 חידושים - ה DMV והיכולת להעלות Tier ולהריץ דברים מאד מהר.
 
יש לציין שכרגע הסקריפט ירוץ או כאשר מדליקים ברמת הסשין דגל כלשהוא או שאני לוחץ על
"include live query statistics"
 
 

 
 
 
זהו לבנתיים
תנצלו את החידוש הזה
יום נעים

Comments

Popular posts from this blog

How to restore deleted Azure Synapse dedicated SQL pool

  Existing dedicated pool can be easily restored from Azure portal or PowerShell command, but for now deleted pool could be restored from PowerShell only! Example: # Connect to Azure with system-assigned managed identity $AzureContext = (Connect-AzAccount -Identity).context # set and store context $AzureContext = Set-AzContext -SubscriptionName $AzureContext.Subscription -DefaultProfile $AzureContext # $AzureContext = Set-AzContext -SubscriptionName $SubscriptionName -DefaultProfile $AzureContext $SubscriptionName="Databases" $ResourceGroupName="stg-rg-we" $ServerName="stg-synapse-we"   $DatabaseName="sql_we_2023_11_07_13_42" $NewDatabaseName="sql_dp_we_deleted" ######################################## $token = (Get-AzAccessToken -ResourceUrl https://database.windows.net).Token $SubscriptionId = "ce088f9e-1111111a3914b" $DedicatedPoolEndPoint = "stg-synapse-we.sql.azuresynapse.net" $DedicatedPoolName = $DatabaseNam...

The journey to the Lakehouse

A long time has passed since the last post, we have gone through a long and tedious journey to adapt what Azure offers us, to our needs. Our needs were simple, the Current Datawarehouse (SQL Server on VM inazure) served the BI. ML teams worked on GCP, we want to let both teams to work on Azure in a platform that will have the ability to scale and will not fail every 2 days. We checked: Snowflake on azure Synapse analytics GCP We decided to go for the full Azure product for the reasons: Migration time support costs Synapse as a platform contains many components, and the challenge was to find what fits  us as an organization and as a group. The knowledge of the people and their abilities influenced the plans. Here's what we planned and what we did: We start to put everything in the Data Lake in parquet or delta format, build on top of Azure ADLS gen 2. We had to move some data to T-SQL compatible platform, so this involves setting up a dedicated Synapse pool , which is a fully man...

Configuring secondary database in Azure SQL DB - Bug found

Hi All Last week we had an issue with a secondary DB in geo replication and fail over group. To make the long story short we had to delete the secondary and recreate a secondary from scratch . And now let me tell you the story, we build a DB in P6 tier - very high, expensive and highly available. Then we add a geo replication copy via the platform, like it shows here. This is take from MSFT documentation: https://docs.microsoft.com/en-us/azure/azure-sql/database/active-geo-replication-overview It is written:  " Both primary and secondary databases are required to have the same service tier. It is also strongly recommended that the secondary database is created with the same backup storage redundancy and compute size (DTUs or vCores) as the primary. If the primary database is experiencing a heavy write workload, a secondary with lower compute size may not be able to keep up with it. That will cause redo lag on the secondary, and potential unavailability of the secondary. To mit...