SQL Server Crash
Hello,Our database unexpectedly shutdown, SQL Server version:Microsoft SQL Server 2017 (RTM) - 14.0.1000.169 (X64) Aug 22 2017 17:04:49 Copyright (C) 2017 Microsoft Corporation Enterprise Edition...
View Articlewhat's actually CMEMTHREAD
https://www.sqlskills.com/help/waits/cmemthread/what's actually "TREAD-safe-memory-object" ?
View ArticleTransaction Log recovery phases
https://docs.microsoft.com/en-us/azure/azure-sql/accelerated-database-recoveryI am not quite sure the design for Phase 2 Redo , why it's not start scanning from the last commit lsn ?
View ArticleSQL Server Crash
Hello,Our database unexpectedly shutdown, SQL Server version:Microsoft SQL Server 2017 (RTM) - 14.0.1000.169 (X64) Aug 22 2017 17:04:49 Copyright (C) 2017 Microsoft Corporation Enterprise Edition...
View ArticlePerformance of the database when I modify the MAXDOP parameter
Hi all I don't understand the behavior of the database when I modify the MAXDOP parameter. We have modified the MAXDOP parameter (from value 0 to value 4) to improve some processes with a quite good...
View ArticleDefault trace was stopped because of an error. Cause: 0x80070057(The...
Hello, We have MS SQL server 2016 Enterprise (SP2-CU5). After starting the server, the default trace file grows to 20 MB, and then stops with this error in ErrorLog:Trace ID '1' was stopped because of...
View ArticleHow to interpret Native Compilation Advisor report
so which code is blocking this procedure to natively compile
View ArticleOnline rebuild index
for online rebuild index , I am reading the following linkshttps://docs.microsoft.com/en-us/sql/relational-databases/indexes/how-online-index-operations-work?view=sql-server-ver15And see if which part...
View Articlesys.dm_tran_version_store : version_sequence_num
In what chances that version_sequence_num will increase ?when two transaction update two separate row of the table, it should only generate to records on table sys.dm_tran_version_store with...
View ArticleRow estimation for query using variable
I have a table CREATE TABLE BillingInfo( ID INT IDENTITY, BillingDate DATETIME, BillingAmt MONEY, BillingDesc varchar(500)); ALTER TABLE BillingInfo ADD CONSTRAINT [PK_BillingInfo_ID] PRIMARY KEY...
View ArticleMEMORY BROKER
Hi Allhttps://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-os-memory-brokers-transact-sql?view=sql-server-ver15what's the memory broker that monitor the...
View Articlevirtual_memory_committed_kb from sys.dm_os_memory_clerks
Can anyone tell what's virtual_memory_committed_kb from sys.dm_os_memory_clerksvirtual_memory_committed_kbbigintSpecifies the amount of virtual memory that is committed by a memory clerk. The amount of...
View ArticlePolyBase : Access Data in cosmodb using mongodb fails with error
Hi All,I am trying to access data in my azure cosmosdb using SQL Server PolyBase (cosmosdb was created using "Azure Cosmos DB for MongoDB API) I am able to connect and access documents using mongo...
View ArticleSQL Licencing for Training databases
I have couple of databases that are used for training classes every now and then,, do i have to host these on a prod server with SQL licence or can they be treated as a non prod Databases ?
View Articleauto update stats : sample
Are there any threshold that the auto update stats will use FULL scan or default sample size ?I see some small tables, (around 10k rows), will trigger auto update stats with full scan.
View ArticlePSSDIAG Output
Hi Team,Just curious to know that, Generally what tools Microsoft use to Analyze PSSDIAG Output.
View ArticleIncremental Stats partition level statistics are not used by SQL Server CE
We can do the UPDATE STATISTICS [WideWorldImporters].[Sales].[CustomerTransactions](CX_Sales_CustomerTransactions) WITH RESAMPLE ON PARTITIONS(3) on serveral partition . And the results should be...
View ArticleSQL Server resource pool MAX_MEMORY_PERCENT
MIN_MEMORY_PERCENT and MAX_MEMORY_PERCENTThese settings are the minimum and maximum amount of memory reserved for the resource pool that can not be shared with other resource pools. The memory...
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