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How to check the ANSI Compatibility of SQL Server Queries? – Interview Question of the Week #221

Publié le 21 avril 2019 sur journey to sqlauthority
 

Question: How to check the ANSI Compatibility of SQL Server queries?Answer: I was totally blown away by this question. I had received this question in my recent Comprehensive Database Performance Health Check, this was indeed extremely unique question …

SQL SERVER – Docker Volume and Persistent Storage

Publié le 20 avril 2019 sur journey to sqlauthority
 

I have received some rave reviews of my article on SQL SERVER – How to Get Started with Docker Containers with Latest SQL Server?. It was amazing to hear that people really get started after reading my article on docker. One of the most popular q …

SQL SERVER – Audit Script to Get CPU and Memory Information with MAXDOP Guidelines

Publié le 19 avril 2019 sur journey to sqlauthority
 

If you are reading this blog regularly the name of Dominic Wirth may not be new for you. He has in the past sent some very interesting scripts for audit for our blog and I am including his new script in this blog which is about how to Get CPU and …

Safely Deleting Clones and Images during Database Development and Testing

Publié le 19 avril 2019 sur sqlservercentral.com
 

The post Safely Deleting Clones and Images during Database Development and Testing appeared first on SQLServerCentral.

The Curious Case of… how to find FILESTREAM info from an MDF

Publié le 18 avril 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 …

Glenn’s Tech Insights For April 18, 2019

Publié le 18 avril 2019 sur sqlskills.com - glen berry
 

(Glenn’s Tech Insights… used to be part of our bi-weekly newsletter but we decided to make it a regular blog post instead so it can get more visibility. It covers interesting new hardware and software developments that are generally releva …

15 Reasons Your Query Was Fast Yesterday, But Slow Today

Publié le 18 avril 2019 sur brentozar.com
 

SQLSaturday Israel 2019 speaker shirt In rough order of how frequently I see ’em: There are different workloads running on the server (like a backup is running right now.) You have a different query plan due to parameter sniffing. The query chang …

Logistics: SQL Server Performance Tuning Practical Workshop for EVERYONE – April 23, 2019

Publié le 18 avril 2019 sur journey to sqlauthority
 

There has been lots of buzz about the very first online class SQL Server Performance Tuning Practical Workshop for EVERYONE which is scheduled on April 23, 2019. Unless you are leaving under a rock, you would know that the class is now 100% sold out an …

Refactoring a Batch or Object with SQL Prompt

Publié le 18 avril 2019 sur sqlservercentral.com
 

The post Refactoring a Batch or Object with SQL Prompt appeared first on SQLServerCentral.

A Quick Start to Running Python Code in SQL Server

Publié le 18 avril 2019 sur sqlservercentral.com
 

SQL Server 2016 introduced the idea of running R language scripts from inside SQL Server. In SQL Server 2017, this capability was renamed Machine Learning Services and enhanced to include the ability to run Python code. This article gives a quick start …

Using the FILTER Function in DAX

Publié le 17 avril 2019 sur simple-talk.com
 

The series so far: Creating Calculated Columns Using DAX Creating Measures Using DAX Using the DAX Calculate and Values Functions Using the FILTER Function in DAX The FILTER function works quite differently than the CALCULATE function explained in the …

Which Database is Causing the Problem?

Publié le 17 avril 2019 sur brentozar.com
 

Pick a bottle, any bottle (Moet & Chandon) You’ve got one SQL Server hosting a bunch of databases, and performance is bad. Which database should you focus on first? Here are a few ways you can pick – but keep in mind they may produce di …

SQL Puzzle – Correct the Incorrect Query – Win Price Worth USD 1000 – Aggregate and Subquery

Publié le 17 avril 2019 sur journey to sqlauthority
 

It has been a while since we have seen a puzzle so let us do a small puzzle today. Actually, this is a very simple puzzle if you have worked with SQL Server for a while. I got an email from one of the readers from the blog post and he wanted me to corr …

Monitoring SQL Server Performance: What’s Required?

Publié le 17 avril 2019 sur sqlservercentral.com
 

The post Monitoring SQL Server Performance: What’s Required? appeared first on SQLServerCentral.

Index scans aren’t always bad, and index seeks aren’t always great.

Publié le 16 avril 2019 sur brentozar.com
 

Somewhere along the way in your career, you were told that: Index seeks are quick, lightweight operations Table scans are ugly, slow operations And ever since, you’ve kept an eye on your execution plans looking for those performance-intensive clu …


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