Pages and Extents: Stairway to SQL Server Indexes Level 4
We've now seen how indexed and non-indexed tables perform in queries, and established "logical reads" as the metric for query performance. Now it is time to explain why logical reads are an excellent metric and also explain what is actually being read.
SQLServerCentral v3 coming tomorrow
The next version of SQLServerCentral will go love on Saturday, March 30, 2019
Trunk Based Database Development
Trunk based development is what many of us do with shared database servers.
Are nulls stored in a nonclustered index?
When you index a nullable field, are the rows with nulls stored in the index? It’s easy enough to find out by creating a table with a nullable field, and then creating an index on it.
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Breaking the 4th Wall with Unity
Even when creating games, your code has access to environment variables and document files. In this article, Lance Talbert shows how to access files to convince the player that maybe the game knows more than it should.
Complimentary access to Gartner Guide
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Create Azure Data Lake Linked Service Using Azure Data Factory
In this article we walk through a step-by-step example on how to create an Azure Data Lake Linked Service in Azure Data Factory v2.
Blogs
SQL Server Journey Part 2: Modern Era (2017 – 2026) – AI/Cloud First
By Vinay Thakur
Following up on my Part 1 baseline, the journey from 2017 onward changed how...
Google Moves Up Post-Quantum Cryptography Timeline
By Brian Kelley
In cryptography, the RSA and ECC algorithms which we use primarily for asymmetric cryptography...
The Book of Redgate: No Politics
By Steve Jones
In today’s world, this might mean something different, but in 2010, we had this...
Forums
Auto Update Statistics not triggering on filtered indexes
I've got a table with 186,703,969 rows, about 300GB of data. There are several...
What is the difference between SQL Server and SQL Database?
I created a SQL Database in Azure Portal but I've just noticed it also...
An Unusual Identity
Comments posted to this topic are about the item An Unusual Identity
Question of the Day
An Unusual Identity
What values are returned when I run this code?
CREATE TABLE dbo.IdentityTest2
(
id NUMERIC(10,0) IDENTITY(10,10) PRIMARY KEY,
somevalue VARCHAR(20)
)
GO
INSERT dbo.IdentityTest2
(
somevalue
)
VALUES
( 'Steve')
, ('Bill')
GO
SELECT top 10
id
FROM dbo.IdentityTest2 See possible answers