If you need to optimise SQL Server performance, it pays to understand SQL Server Statistics. Grant Fritchey answers some frequently-asked questions about SQL Server Statistics: the ones we somehow feel silly asking in public, and think twice about doing so.
2013-03-12
3,545 reads
If you need to optimise SQL Server performance, it pays to understand SQL Server Statistics. Grant Fritchey answers some frequently-asked questions about SQL Server Statistics: the ones we somehow feel silly asking in public, and think twice about doing so.
2013-03-01
4,125 reads
2012-11-06
1,934 reads
2012-10-09
2,481 reads
How can I find out which statistics are outdated in my SQL Server database?
2012-09-06
3,505 reads
2011-09-23
2,473 reads
It comes as rather a shock to find out that one of the commonest circumstances in an OLTP database, an ascending primary key with most querying on the latest records, can throw the judgement of the Query Optimiser to the extent that perfomance nose-dives. Fabiano Amorim once again dons snorkel and goggles to explore the murky depths of execution plans to find out why.
2011-09-16
2,528 reads
SQL Server Statistics assist the query optimiser to calculate the best way of running the query. Holger describes every common way that things can go wrong with statistics, and how to put matters right.
2010-11-11
3,714 reads
2010-04-16
3,721 reads
Fabiano launches into a sound technical explanation of the way that the query optimiser works in SQL Server with a mention of Brazilian Soccer stars and young ladies on Copacabana beach. You'll never quite think of statistics, execution plans, and the query optimiser the same way again after reading this, but we think you'll understand them better.
2010-02-02
5,853 reads
By Brian Kelley
If you want to learn better, pause more in your learning to intentionally review.
By John
If you’ve used Azure SQL Managed Instance General Purpose, you know the drill: to...
By DataOnWheels
Ramblings of a retired data architect Let me start by saying that I have...
Hello team Can anyone share popular azure SQL DBA certification exam code? and your...
Comments posted to this topic are about the item Faster Data Engineering with Python...
Comments posted to this topic are about the item Which Result II
I have this code in SQL Server 2022:
CREATE SCHEMA etl;
GO
CREATE TABLE etl.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT etl.product
VALUES
(2, 'Bee AI Wearable');
GO
CREATE TABLE dbo.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT dbo.product
VALUES
(1, 'Spiral College-ruled Notebook');
GO
CREATE OR ALTER PROCEDURE etl.GettheProduct
AS
BEGIN
exec('SELECT ProductName FROM product;')
END;
GO
When I execute this code as a user whose default schema is dbo and has rights to the tables and proc, what is returned? See possible answers