Window Function Basics - PARTITION BY
This article looks at the basics of the OVER() clause and how the PARTITION section works.
2023-12-08
12,670 reads
Emmitt Albright
Comparing Two Execution Plans
This is a short look at a technique that I discovered recently in Management Studio (SSMS). The technique is to compare two graphical execution plans in the tool to understand what they are doing and how two different queries might affect a particular system, both with the image and with the properties' data behind the […]
2023-11-24 (first published: 2021-03-30)
11,153 reads
Randomizing the Day Inside a Month Using T-SQL
This article shows how you can randomize dates in T-SQL, but keep the month and year the same while the day varies.
2022-06-24
1,793 reads
Using Coalesce to Clean Up Reports
One of the lesser used functions is COALESCE(), used to allow you to return one value from a list of those that are potentially NULL. This short pieces gives a few examples where this is useful?
2021-08-16
4,450 reads
A Quick Start to Running Python Code in SQL Server
With the addition of Python to Machine Learning Services in SQL Server 2017, you can now execute your Python code inside of SQL Server.
2020-11-13 (first published: 2019-04-18)
37,641 reads
Creating a Serverless Database in Azure
Learn how you can create a database in the serverless tier in Azure.
2020-06-29
9,898 reads
Fixing MLS Python Services to Load the Runtime
Recently I went to work on a SQL Server 2017 instance and couldn't get the Python runtime to load. I'd keep getting this error: A strange error for me to see, and one that didn't quite make sense. How can the runtime not launch? However, restarting the instance still resulted in this error: Msg 39021, […]
2019-10-24
8,573 reads
Key Rotation in TDE
Transparent Data Encryption (TDE) has been around for a long time. It first appeared in SQL Server 2008, and after a rocky start with some bugs, it has become a regularly used feature for many organizations. While not perfect, it does provide some protection and auditors like to see physical protection features being used. It's […]
2019-08-29
16,002 reads
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STRING_AGG DISTINCT
Has anyone written a wrapper function (or similar) around STRING_AGG() to allow the retrieval...
In-place OS upgrade or migration to new OS?
Putting this here as we're currently on SQL Server 2019 installed on Windows Server...
Never is Not the Policy
Comments posted to this topic are about the item Never is Not the Policy
Question of the Day
Rebuilding All Indexes
I have added a few indexes to one of my tables in SQL Server 2025:
ALTER TABLE dbo.CustomerContact
ADD CONSTRAINT PK_CustomerContact
PRIMARY KEY (CustomerID);
-- Create index on CustomerEmail
CREATE INDEX IX_CustomerContact_CustomerEmail
ON dbo.CustomerContact (CustomerEmail);
CREATE INDEX IX_CustomerContact_CustomerPhone
ON dbo.CustomerContact (phone);
I then do this to disable one index:
alter index IX_CustomerContact_CustomerPhone on dbo.CustomerContact disableI see this when I check the index status:
I decide to rebuild all indexes with this command:
ALTER INDEX ALL ON dbo.CustomerContact rebuildAfter I do this, what will I see for the index status? See possible answers