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THREADPOOL Waits: When Raising Max Worker Count Helps

August 9, 2019
Pinal Dave
SQL Performance
SQL CPU, SQL DMV, SQL Server Configuration, SQL Wait Stats

THREADPOOL waits mean tasks waited for a worker thread. Five read-only queries separate real thread starvation from blocking and busy CPUs. The post lists five signs and shows how to raise the cap in small steps.

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Max Worker Count: Why Typing 10000 Slowed a Server

August 7, 2019
Pinal Dave
SQL Tips and Tricks
SQL CPU, SQL DMV, SQL Scripts, SQL Server Configuration

Max worker count looks like a speed dial but behaves like a safety limit. A client typed 10000 on an 8 processor server and slowed it, and a reset to 0 fixed it in minutes. Two read-only queries show your value and whether workers run short.

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How to Write in Text File from T-SQL in SQL Server? – Interview Question of the Week #236

August 4, 2019
Pinal Dave
SQL Interview Questions and Answers
SQL Scripts, SQL Server, SQL Server Configuration, SQL Stored Procedure, SQL String

Question: How to Write in Text File from T-SQL in SQL Server?
The question above was actually asked in an interview and also was not asked in the same word.

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Running SQL Server Under a Group Managed Service Account

July 23, 2019
Pinal Dave
SQL Tips and Tricks
SQL Server, SQL Server Configuration, SQL Server Security, SQL Server Services

Set up a group managed service account for SQL Server Engine and Agent, then verify permissions, SPNs, and Kerberos connections.

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Listing Non-Default Server Settings From sys.configurations

April 30, 2019
Pinal Dave
SQL Tips and Tricks
DBA, SQL Documentation, SQL Server Configuration, SQL System Table

Inventory non-default server settings with a versioned baseline, compare configured and active values, and keep the review read-only.

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Script Level Upgrade for Database 'master''s SSISDB Database.

SQL SERVER – Script Level Upgrade for Database ‘master’ Failed Because Upgrade Step ‘SSIS_hotfix_install.sql’ Encountered Error 15151

April 6, 2019
Pinal Dave
SQL Tips and Tricks
SQL Error Messages, SQL Scripts, SQL Server, SQL Server Configuration, SSIS, TraceFlags

Another SQL Server upgrade failure: upgrade step SSIS_hotfix_install.sql hit error 15151 because a user did not exist. Here is how I fixed it.

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How Does QUOTED_IDENTIFIER Works in SQL Server? – Interview Question of the Week #217

March 24, 2019
Pinal Dave
SQL Interview Questions and Answers
SQL Scripts, SQL Server, SQL Server Configuration

How Does QUOTED_IDENTIFIER Works in SQL Server? I explain it in very simple words, using SELECT “Order By” with the setting OFF and then ON.

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