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long running queries

SQL SERVER – Long Running Queries with Execution Plan

December 7, 2020
Pinal Dave
SQL Performance
Execution Plan, SQL Scripts, SQL Server

I have a simple script that will list all the long running queries in the database with the execution plan. Well, the answer is yes.

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Disabled Nonclustered

SQL SERVER – sp_updatestats Performance and Disabled Nonclustered Indexes

December 4, 2020
Pinal Dave
SQL Performance
Clustered Index, SQL Scripts, SQL Server, SQL Statistics

Today I am going to share our very interesting conversation about sp_updatestats and Disabled Nonclustered Indexes. Let us discuss.

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JOIN Elimination

SQL SERVER – JOIN Elimination for Not Selected Column

November 25, 2020
Pinal Dave
SQL Performance
Execution Plan, SQL Joins, SQL Operator, SQL Scripts, SQL Server, SQL Statistics, SSMS

The question is about JOIN Elimination for Not Selected Column. It was discussed in the Comprehensive Database Performance Health Check.

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disable statistics

SQL SERVER – Disable Statistics Update for a Single Table

November 17, 2020
Pinal Dave
SQL Performance
SQL Scripts, SQL Server, SQL Server Configuration, SQL Statistics

Recently I had encountered an interesting issue with one table where we had to disable statistics update for a single table. How we can do that?

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logical read

SQL SERVER – What is Logical Read?

November 12, 2020
Pinal Dave
SQL Performance
Logical Read, SQL Server, SQL Server Management Studio, SQL Statistics, SSMS

Comprehensive Database Performance Health Check and they asked me a question about logical read based on my previous video about SET STATISTICS IO.

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3 different

SQL SERVER – 3 Different Ways to Set MAXDOP

November 11, 2020
Pinal Dave
SQL Performance
Database Scoped Configurations, MAXDOP, SQL CPU, SQL Scripts, SQL Server, SQL Server Configuration

I got lots of emails about how to set MAXDOP for any query. Today we will be learning 3 different ways to set MAXDOP. Let us learn it today.

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preemptive waits

SQL SERVER – PREEMPTIVE Waits – Simple Definition

November 9, 2020
Pinal Dave
SQL Performance
SQL Scripts, SQL Server, SQL Wait Stats

Recently a client asked me during  Comprehensive Database Performance Health Check what does it mean to see more preemptive waits on their system.

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