A PowerShell way to get a list of fixed hard drives and free space on server: MVP Ravikanth’s short script with Get-WmiObject and Win32_LogicalDisk.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
SQL SERVER – Get Directory Structure using Extended Stored Procedure xp_dirtree
Need to list a directory structure from T-SQL? The undocumented xp_dirtree procedure does it, and here is how to save its output in a temp table.
SQL SERVER – DVM sys.dm_os_sys_info Column Name Changed in SQL Server 2012
SQL SERVER – DVM sys.dm_os_sys_info Column Name Changed in SQL Server. Let us learn about it in today’s blog post.
SQL SERVER – Solution to Puzzle – Simulate LEAD() and LAG() without Using SQL Server 2012 Analytic Function
Readers found five ways to simulate LEAD() and LAG() without the SQL Server 2012 analytic functions. This post shows each solution with its author, runs all five on SQL Server 2025 and compares the rows with the real functions. Four return the same ten rows and one adds a rule of its own.
SQL SERVER – 2012 – Summary of All the Analytic Functions – MSDN and SQLAuthority
SQL Server 2012 introduced Analytic Functions for common window calculations. I collected this series to make them easier to learn.
SQL SERVER – Introduction to PERCENTILE_DISC() – Analytic Functions Introduced in SQL Server 2012
An introduction to PERCENTILE_DISC, the SQL Server 2012 analytic function that returns an actual value from your data at a given percentile.
SQL SERVER – Puzzle to Win Print Book – Explain Value of PERCENTILE_CONT() Using Simple Example
Win a print book: explain the value of PERCENTILE_CONT with a simple example, and learn this SQL Server 2012 function even on an earlier version.
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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 19 books and 125 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 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.
Shaivi Pinalkumar Dave is a book author and a women’s artistic gymnast.

