When do Distribution Statistics Get Updated?
Statistics objects are important to us for allowing SQL to make good estimates of the row-counts involved in different parts...
2017-07-05
775 reads
Statistics objects are important to us for allowing SQL to make good estimates of the row-counts involved in different parts...
2017-07-05
775 reads
What is an Index?
We often hear indexes explained using the analogy of an index in the back of a book....
2017-06-12
1,593 reads
This is the first in what I hope will be a semi-regular series of recreational puzzles where SQL can be...
2017-06-07
1,603 reads
In this post we’re going to create some encrypted columns in a table in a test database and look at...
2017-06-06
10,853 reads
Parallelism and MAXDOP
There’s no doubt that parallelism in SQL is a great thing. It enables large queries to share the...
2017-05-26
5,306 reads
A lot has been written about the change of licencing in SQL 2016 SP1. Here's my two-pence worth.
2017-05-17
17 reads
A small change, but a great one, in SQL 2016 is native support for splitting strings.
This has to be about...
2017-05-09
781 reads
Thoughts on how to think about parallelism in SQL Server - and how to tune it.
2017-04-18
15 reads
In this post we’re going to create some encrypted columns in a table in a test database and look at some of the practicalities and limitations of working with...
2017-04-10
9 reads
This post attempts to explain in simple terms what keys are involved in Always Encrypted, how they get used, and the implications of those facts.
2017-04-03
9 reads
By Steve Jones
It’s Prime Day. A few of my recommendations, since I want to do some...
With Fabric Mirroring, Microsoft is promoting a nice and appealing story for operational reporting...
If you’ve been watching AI roll through the data community and thinking, “this seems...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
Comments posted to this topic are about the item Concurrency and Baseline Control: Level...
Comments posted to this topic are about the item Spending Time in the Office
I have this code on SQL Server 2022. What happens when it runs all at once?
DROP TABLE IF EXISTS dbo.Commission GO CREATE TABLE dbo.Commission (id INT NOT NULL IDENTITY(1,1) CONSTRAINT CommissionPK PRIMARY KEY , salesperson VARCHAR(20) , commission VARCHAR(20) ) GO INSERT dbo.Commission ( salesperson, commission) VALUES ( 'Brian', 12 ), ( 'Brian', 'None' ) GOSee possible answers