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Task Manager – Confusing Story of CPU

Publié le 26 novembre 2019 sur journey to sqlauthority
 

I have a very interesting story to tell everyone. The story is about the accidental mistake by one of my clients who hired me to help with the Comprehensive Database Performance Health Check. Today we will talk about a very funny Confusing Story o …

New Multi-Server Emails for SQL ConstantCare®

Publié le 25 novembre 2019 sur brentozar.com
 

With our SQL ConstantCare® service, you install a service that polls your SQL Servers once a day, and then we send you a daily email telling you the most important tasks to perform on that server to make it faster and more reliable. We’re all …

SQL SERVER – ColumnStore Index Displaying Actual Number of Rows To Zero

Publié le 25 novembre 2019 sur journey to sqlauthority
 

While I am not a great fan of Columnstore Indexes in general, I still have implemented it when I realize that my clients will be benefited from this feature. There are many instances, where clients have created columnstore indexes without planning and …

How Bad are Bad Page Splits?

Publié le 25 novembre 2019 sur sqlservercentral.com
 

We’ve always been told that Bad Page Splits hurt performance, but I have seen no testing results to support this. In this paper, we will discuss a testing sequence that measures IOs and CPU for inserts at the end of an index (good page splits) an …

How to Disable Batch Mode in SQL Server? – Interview Question of the Week #252

Publié le 24 novembre 2019 sur journey to sqlauthority
 

Question: How to Disable Batch Mode in SQL Server?Answer: I received this as a follow-up question to my previous blog post SQL SERVER – Simple Example of Batch Mode in RowStore. My immediate reaction was why would you disable batch mode in SQL Se …

The Curious Case of… the failing SQL Server 2019 install

Publié le 23 novembre 2019 sur sqlskills.com - paul randall
 

(The Curious Case of… used to be part of our bi-weekly newsletter but we decided to make it a regular blog post instead so it can sometimes be more frequent. It covers something interesting one of us encountered when working …

SQL SERVER Management Studio – Enable Statistics Time and IO for Every Query

Publié le 23 novembre 2019 sur journey to sqlauthority
 

Recently, while working with a large education institute on Comprehensive Database Performance Health Check I was asked a very interesting question about statistics TIME and IO for SQL Server Management Studio, let us discuss that in today’s blog …

SQL SERVER – Recompile Stored Procedures Two Easy Ways

Publié le 22 novembre 2019 sur journey to sqlauthority
 

Recently while working with a large financial organization on Comprehensive Database Performance Health Check, I found an instance where stored procedure had a very incorrect execution plan cache. I told the DBA who was working with me to recompile the …

SQL Clone PowerShell Scripting: The Basics

Publié le 22 novembre 2019 sur sqlservercentral.com
 

powersql clonepowersql clonep The post SQL Clone PowerShell Scripting: The Basics appeared first on SQLServerCentral.

How to Think Like the Engine: When a Seek Isn’t

Publié le 21 novembre 2019 sur brentozar.com
 

In our last episode, I introduced the concept of scan predicates: execution plan operations that weren’t able to seek directly to the rows they needed. Let’s take another query:DropIndexes; GO CREATE INDEX IX_LastAccessDate_Id_DisplayName_A …

SQL SERVER – Batch Mode in RowStore – Performance Comparison

Publié le 21 novembre 2019 sur journey to sqlauthority
 

Earlier this week, I wrote about SQL SERVER – Simple Example of Batch Mode in RowStore. It was very well received and lots of people started to ask questions after reading the blog post. The most asked question was about the Performance differenc …

Large estate monitoring at BMW

Publié le 21 novembre 2019 sur sqlservercentral.com
 

The post Large estate monitoring at BMW appeared first on SQLServerCentral.

Verify your SQL Server database backups

Publié le 21 novembre 2019 sur sqlservercentral.com
 

Introduction A popular joke about DBAs and database backups goes like this. There are two types of DBAs: DBAs that do backups DBAs that will do backups The joke is only stating the obvious – lack of database backups might be the end of a DBA care …

SSRS is Still Around

Publié le 20 novembre 2019 sur simple-talk.com
 

The other day, a friend asked me if Microsoft is discontinuing SQL Server Reporting Services (SSRS) now that Power BI is the premier MS reporting and dashboarding tool. It seems like more organizations are finding fewer reasons to use SSRS due to the e …

How to Think Like the Engine: Index Column Order Matters a LOT.

Publié le 20 novembre 2019 sur brentozar.com
 

We’ve been working with the clustered index of the Users table, which is on the Identity column – starts at 1 and goes up to a bajillion: And in a recent episode, we added a wider nonclustered index on LastAccessDate, Id, DisplayName, and A …


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