T-SQL Tips and Tricks
In this article learn some TSQL tips and tricks working with CTEs, UPDATES, Window Functions, Duplicate Rows, Tally Tables and Concatenating string values in SQL Server
2021-03-10
T-SQL
sqldf in R Example for SQL Server
R has a package called sqldf that allows developers to manipulate data inside a dataframe in the same way a SQL developer queries a SQL table which we will cover with examples in this article.
2021-03-01
How to Batch Updates A Few Thousand Rows at a Time
In this post, Brent explains how to use a combination of two separate topics that he has blogged about recently.
2021-01-20
Check Windows Services Status with T-SQL
In this article we look at creating a SQL Server stored procedure that displays a list of all Windows services based on running or stopped state.
2020-11-24
Managing Cross-Database Object References
Phil Factor explains cross database and cross-server references, how to find them in your code, and when it's better to avoid hard-coding these references and use synonyms instead.
2020-11-20
Using Triggers to Replace Scalar UDFs on Computed Columns
Using Triggers to Replace Scalar UDFs with Brent Ozar.
2020-11-16
Dynamic Data Unmasking
The SQL Server 2016 dynamic data masking feature may seem like a great way to obfuscate data for downstream systems like dev and QA. Joe Obbish shows us that the data can be “unmasked” with T-SQL statements, so it’s not secure against anyone who can write their own queries.
2020-10-16
Execute on DMVs without user having View Server State
Wanted to share this script to the community just in case anyone out there may be search for a way to allow a hosted customer the ability to query certain DMVs for information without granting them View Server State. There are some other options out there, but this worked better for me after going through […]
2020-09-24
2,244 reads
Delete Duplicate Rows with No Primary Key on a SQL Server Table
Every once in awhile a table gets created without a primary key and duplicate records get entered. The problem gets even worse when you have two identical rows in the table and there is no way to distinguish between the two rows. So how do you delete the duplicate record?
2020-09-11
Half Of You Don’t Understand Variables and Transactions.
Do table variables and variables respect transactions? If we set the value of a variable during a transaction, and we roll it back, what happens?
2020-09-09
Blogs
SQL Training Black Friday Deals
By Brian Kelley
If you're looking for particular "Black Friday" deals, here is what I've seen advertised...
Dry-run xp_delete_file Before Actually Deleting Files?
By SQLPals
Dry-run xp_delete_file Before Actually Deleting Files? xp_delete_file doesn’t really have a...
Happy Thanksgiving! (USA Holiday)
By Brian Kelley
In the United States, today is Thanksgiving. The intent behind the holiday is to...
Forums
Don't Let Corner Cases Drive Your Design
Comments posted to this topic are about the item Don't Let Corner Cases Drive...
A New Operator
Comments posted to this topic are about the item A New Operator
Troubleshooting Common SQL Server Errors: 823, and 824
Comments posted to this topic are about the item Troubleshooting Common SQL Server Errors:...
Question of the Day
A New Operator
In SQL Server 2025, what does this code return?
SELECT '1' || '0'See possible answers