June 2025 Discount: Comprehensive Database Performance Health Check | Testimonials

Home
  • Consulting
  • Training
  • Free Videos
  • All Articles
    • Interview Questions and Answers
    • SQL Tips and Tricks
    • SQL Performance
    • SQL Puzzle
    • Big Data
    • Blog Stats
    • SQL Books
    • Search SQLAuthority
  • Downloads
  • Hire Me
  • Health Check
All Articles BusinessDays1-600x136

SQL SERVER – Find Business Days Between Dates

July 5, 2021
Pinal Dave
SQL Tips and Tricks
SQL DateTime, SQL Scripts, SQL Server

I often receive a very common question during my Comprehensive Database Performance Health Check about how to find Find Business Days Between Dates.

Read More
All Articles 178-3OP1Scan-yt-600x338

One Scan for 3 Count Sum – SQL in Sixty Seconds #178

July 2, 2021
Pinal Dave
SQL Tips and Tricks
Execution Plan, SQL Function, SQL in Sixty Seconds, SQL Index, SQL Scripts, SQL Server

Well, the answer is pretty straight forward and that is what we are going to see in today’s video of One Scan for 3 Count Sum.

Read More
All Articles June2021Summary-600x183

June 2021 Summary for SQL in Sixty Seconds

July 1, 2021
Pinal Dave
SQL Video
SQL Performance

It seems that YouTube is now gaining more traction than text-based blogs. Let us see June 2021 Summary for SQL in Sixty Seconds.

Read More
All Articles singlescancover-600x248

SQL Server – Single Scan for 3 Operations – COUNT(*) COUNT(1) SUM(1)

June 30, 2021
Pinal Dave
SQL Performance
Execution Plan, SQL Function, SQL Index, SQL Scripts, SQL Server, SQL Server Management Studio, SSMS

Today we will take the same conversation to the next level by discussing Single Scan for 3 Operations – COUNT(*) COUNT(1) SUM(1).

Read More
All Articles 177-SomeOne-main-yt-600x338

SUM(1) vs COUNT(1) Performance Battle – SQL in Sixty Seconds #177

June 29, 2021
Pinal Dave
SQL Video
Execution Plan, SQL Function, SQL in Sixty Seconds, SQL Scripts, SQL Server

Based on my recent two videos, I got lots of questions about SUM(1) vs COUNT(1) Performance Battle. Let us see that in today’s video.

Read More
All Articles freewebinarquest-600x249

Free Webinar – SQL Performance Monitoring with Wait Statistics Scripts

June 28, 2021
Pinal Dave
SQLAuthority News
Quest, SQL Wait Stats, Webinar

This blog will share details about the free webinar –  SQL Performance Monitoring with Wait Statistics Scripts. Let us discuss it today.

Read More
All Articles PerformanceObservation-600x293

SQL SERVER – SUM(1) vs COUNT(*) – Performance Observation

June 25, 2021
Pinal Dave
SQL Performance
Execution Plan, SQL Scripts, SQL Server

One question that kept on coming up was SUM(1) vs COUNT(*) – Performance Observation. Well, let us see that today.

Read More
All Articles CollectionofArticles-600x158

SQL SERVER – COUNT(*) Collection of Articles

June 24, 2021
Pinal Dave
SQL Performance
Execution Plan, SQL Server

Today we are building a Collection of Articles that have recently generated interest on the blog as well as on the YouTube channel –  SQL in Sixty Seconds. 

Read More
All Articles 176-Countmatch-yt-600x338

COUNT(*) and COUNT(1): Performance Battle – SQL in Sixty Seconds #176

June 23, 2021
Pinal Dave
SQL Video
Execution Plan, SQL in Sixty Seconds, SQL Scripts, SQL Server

COUNT(*) and COUNT(1): Performance Battle – which one is better for performance? I got this question after watching my previous video.

Read More
All Articles IndexFrequentlyAskedQuestions-600x151

COUNT(*) and Index Frequently Asked Questions

June 22, 2021
Pinal Dave
SQL Tips and Tricks
SQL Index, SQL Scripts, SQL Server

However, before you read today’s COUNT(*) and Index Frequently Asked Questions I suggest you watch the video COUNT(*) and Index.

Read More
Previous 1 … 31 32 33 34 35 36 37 … 579 Next
  • SQL Interview Q & A
  • Testimonials
  • Search
  • Privacy Policy

© 2006 – 2025 All rights reserved. pinal @ SQLAuthority.com