SQL Server Performance Tuning Expert - SQL Authority with Pinal Dave

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.

An Index Reduces Performance of SELECT Queries (Video)
3 Common Mistakes to Kill SQL Server Performance (Video)
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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“.

Mar30

SQL SERVER – Index Seek Vs. Index Scan (Table Scan)

Pinal Dave

SQL Performance

SQL Index, SQL Joins, SQL Scripts, SQL Server

107

Index Scan retrieves all the rows from the table. Index Seek retrieves selective rows from the table.

Mar29

SQL SERVER – Difference between DISTINCT and GROUP BY – Distinct vs Group By

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Function, SQL Joins, SQL Scripts

This question is asked many times to me. What is difference between DISTINCT and GROUP BY? A DISTINCT and GROUP BY usually generate the same query plan, so performance should be the same across both query constructs. GROUP BY should be used to apply aggregate operators to each group. If…

Mar28

SQL SERVER – Fix : Error 8101 An explicit value for the identity column in table can only be specified when a column list is used and IDENTITY_INSERT is ON

Pinal Dave

SQL

SQL Download, SQL Error Messages, SQL Scripts, SQL Server, SQL Server Security

This error occurs when the user has attempted to insert a row containing a specific identity value into a table that contains an identity column. Run following commands according to your SQL Statement. Let us learn about the IDENTITY_INSERT.

Mar27

SQL SERVER – Fix : Error 701 There is insufficient system memory to run this query

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Download, SQL Error Messages, SQL Scripts, SQL Server DBCC, SQL Server Security, SQL Stored Procedure

Generic Solution: Check the settings for both min server memory (MB) and max server memory (MB). If max server memory (MB) is a value close to the value of min server memory (MB), then increase the max server memory (MB) value. Check the size of the virtual memory paging file.…

Mar25

SQL SERVER – @@IDENTITY vs SCOPE_IDENTITY() vs IDENT_CURRENT – Retrieve Last Inserted Identity of Record

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Function, SQL Index, SQL Scripts

230

SELECT @@IDENTITY It returns the last IDENTITY value produced on a connection, regardless of the table that produced the value, and regardless of the scope of the statement that produced the value. @@IDENTITY will return the last identity value entered into a table in your current session. While @@IDENTITY is…

Mar23

SQL SERVER – Stored Procedure – Clean Cache and Clean Buffer

Pinal Dave

SQL Performance

SQL Scripts, SQL Server, SQL Server DBCC, SQL Server Security, SQL Stored Procedure, SQL Utility

DBCC FREEPROCCACHE will invalidate all stored procedure plans that the optimizer has cached in memory. Let us learn how to clean cache.

Mar22

SQL SERVER – Fix: Error Msg 128 The name is not permitted in this context. Only constants, expressions, or variables allowed here. Column names are not permitted.

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Download, SQL Error Messages, SQL Scripts, SQL Server Security

Error Message: Server: Msg 128, Level 15, State 1, Line 3 The name is not permitted in this context. Only constants, expressions, or variables allowed here. Column names are not permitted. Causes: This error occurs when using a column as the DEFAULT value of another column when a table is…

Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 21 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.

Pinal has authored 13 SQL Server database books and 49 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,600 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.

May 2023 Discount: Comprehensive Database Performance Health Check | Testimonials

SQL SERVER – Index Seek Vs. Index Scan (Table Scan)

SQL SERVER – Difference between DISTINCT and GROUP BY – Distinct vs Group By

SQL SERVER – Fix : Error 8101 An explicit value for the identity column in table can only be specified when a column list is used and IDENTITY_INSERT is ON

SQL SERVER – Fix : Error 701 There is insufficient system memory to run this query

SQL SERVER – @@IDENTITY vs SCOPE_IDENTITY() vs IDENT_CURRENT – Retrieve Last Inserted Identity of Record

SQL SERVER – Stored Procedure – Clean Cache and Clean Buffer

SQL SERVER – Fix: Error Msg 128 The name is not permitted in this context. Only constants, expressions, or variables allowed here. Column names are not permitted.

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