Question: Does NOLOCK Really Applies No Lock?
Answer: The answer is NOLOCK do apply the lock and it is Sch-S lock. Sch-S stands for Schema Stability. Quite a few people say it is actually Schema Shared lock and it is not correct.
Is your SQL Server running slow and you want to speed it up without sharing server credentials? In my Comprehensive Database Performance Health Check, we can work together remotely and resolve your biggest performance troublemakers in less than 4 hours.
Once you learn my business secrets, you will fix the majority of problems in the future.
Have you ever opened any PowerPoint deck when you face SQL Server Performance Tuning emergencies? SQL Server Performance Tuning Practical Workshop is my MOST popular training with no PowerPoint presentations and 100% practical demonstrations.
Essentially I share my business secrets to optimize SQL Server performance.
For SQL Server Emergency Help, you can reach out to me at pinal@sqlauthority.com with words URGENT in the email subject line for other services mention “Comprehensive Database Performance Health Check“.
Question: Does NOLOCK Really Applies No Lock?
Answer: The answer is NOLOCK do apply the lock and it is Sch-S lock. Sch-S stands for Schema Stability. Quite a few people say it is actually Schema Shared lock and it is not correct.
After sending out the previous email where I explained that anyone who will attend SQLBits 2019: Pre-Con – 21 Essential Scripts: Performance Tuning for EVERYONE, will get 1 Hour FREE Consulting Hour, it seems that many of you have signed up for the course – Thank You! As per organizers, now there are only very few seats are available.
Ask any DBA what would they love to monitor in their SQL Server and I promise you that you will get quite many different answers to this question. Though every DBA would love to see their server always up upon asked what exactly they would like to watch you will see different answers to the popular question. I have previously blogged about it over here:Â Solve 3 Biggest SQL Server Performance Challenges with Spotlight. Today, you can download Spotlight and Win Apple Watch Series 4.
My primary responsibility is to help people with SQL Server Performance Tuning and Optimization, and I believe there are three important challenges any DBA faces. Today we will discuss why I prefer to use Spotlight to identify SQL Server Performance issues and their resolutions.
Have you ever imagined how often SQL Server performance issues are actually caused by poor capacity planning? Sometimes a SQL Server database has insufficient storage performance, an instance is running out of memory, or the server level CPU is skyrocketing to an unhealthy level.
Today’s blog post is actually a follow up of my earlier blog post SQL SERVER – Copy Data From SSMS Query Result to Excel. In the earlier blog post, we had discussed how to copy data from the resultset. In this blog post, we will discuss how we can directly export data from SSMS Query to Excel.Â
My primary job is to help various organizations design scalable architecture which can provide robust performance all the time. I love my job very much when I have complete freedom to make the decisions to build elaborate infrastructure. However, not every time I am allowed to do what I want to do because every CEO and CTO are concerned about one thing – “Budget and ROI (Return of investment).”
Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 24 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.
Pinal has authored 14 SQL Server database books and 94 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.
Pinal is an experienced and dedicated professional with a deep commitment to flawless customer service. If you need help with any SQL Server Performance Tuning Issues, please feel free to reach out at pinal@sqlauthority.com.
Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).
Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long-term multi-channel campaigns to drive leads for their sales pipeline.