2015-09-21
1,653 reads
Performance
Analyzing I/O Performance for SQL Server
Inadequate storage is one of the most common bottlenecks seen in subsystem performance. There are a number of reasons for poor storage performance, but measuring it and understanding what needs to be measured and monitored is always a useful exercise.
2015-07-21
5,049 reads
Query Performance Report
The procedure created by this script rolls up the collected query execution statistics and groups them daily by the plan hash value.
2016-01-20 (first published: 2015-05-13)
5,435 reads
SQL Server 2014 Checklist for Performance
A checklist to help optimize the performance of SQL Server
2014-12-29
8,731 reads
2014-12-17
1,944 reads
Using DBCC DROPCLEANBUFFERS When Testing Performance
Over the years I've had many discussions with other SQL Server Database Administrators as to whether or not you should have the database buffer pool loaded with data pages or empty when testing queries for performance. This tip will take a look at the effects on query performance for both cases by using the DBCC DROPCLEANBUFFERS statement to empty the buffer pool.
2014-06-20
8,763 reads
SQL Server CPU Usage History Histogram
Returns a summary of CPU usage by SQL Server over the last 4 hours (default).
Using the sample values collected in the dm_os_ring_buffers dmv, this query will show CPU usage by the SQL Server process for the last for hours even if you have no other benchmarking activities in place on your server yet.
2015-09-18 (first published: 2014-05-14)
5,574 reads
2014-05-01
1,652 reads
2014-01-29
1,648 reads
2013-06-25 (first published: 2013-06-03)
1,561 reads
Blogs
The Agent Era: When “How do I…?” Replaces “Where do I click?”
By Arun Sirpal
After a year away getting to grips with AI and its application across the...
Beware of Generic SQL Server License Keys (What to Use Instead)
By SQLPals
Beware of Generic SQL Server License Keys (What to Use Instead) ...
On Speaking Well
By Brian Kelley
Professor Patrick Winston of MIT used to give a one-hour talk about how to...
Forums
Creating a JSON Document II
Comments posted to this topic are about the item Creating a JSON Document II
Backing Up Azure Key Vault EKM Key: Stairway to TDE Level 6
By VishnuGupthanSQLPowershellDBA
Comments posted to this topic are about the item Backing Up Azure Key Vault...
Every Database Has Problems
Comments posted to this topic are about the item Every Database Has Problems
Question of the Day
Creating a JSON Document II
I want to create a JSON document that contains data from this table:
TeamID TeamNameCity YearEstablished 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960If I run this code, what document(s) is/are returned?
SELECT json_objectagg( n.city : n.TeamName) FROM dbo.NFLTeams;See possible answers