Stairway to SQL Server Security

Stairway to SQL Server Security Level 6: Execution Context and Code Signing

A fundamental way that SQL Server determines whether a principal has the permissions necessary to execute code is with its execution context rules. It’s all complicated by the possibility that a principal has permission to execute code but doesn’t have permission on the underlying objects accessed by the code, such as the data in a table. This stairway level will explore SQL Server’s execution context, ownership chains, and impersonation, as well as show you how you can control access to data via T-SQL code.

External Article

Centralize Your Database Monitoring Process

SQL Server Data Collector, together with Management Data Warehouse, is a fine and useful component for gathering information centrally about how SQL Server instances are being used, and thereby keeping an eye out for problems. It comes into its own when you have figured out how to configure it to run on maybe hundreds of instances using Central Management Server. Dennes describes how to tame the system so that it scales.

Blogs

Goodbye, Microsoft

By

A few years ago I took a new job at Microsoft, working as a...

The SUM of Nothing: #SQLNewBlogger

By

I caught this interesting item over on Pinal Dave’s blog: Eleven Interview Questions that...

How to Move the SSMS Status Bar to the Top and Color-Code SQL Server Connections

By

I use color-coded connections in SSMS to distinguish Production, Pre-Production, UAT, and Development. But...

Read the latest Blogs

Forums

Today's AI

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Today's AI

Split Large Queries in Athena with a Simple Modulo Trick

By Rahul Gupta

Comments posted to this topic are about the item Split Large Queries in Athena...

Finding Trailing Spaces

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Finding Trailing Spaces

Visit the forum

Question of the Day

Finding Trailing Spaces

I have some data in a SQL Server 2025 database. It looks like this for the dbo.Customer table:

CustomerID CustomerName PreferredName
1          Steve        Steve               
2          Andy         Andy               
3          Brian        Brian               
4          Allan        Allan               
5          Devin        Devin               
6          Steve        Steve               
7          Sally        Sally
I want to detect which names have a single trailing space. The CustomerName is a varchar() and the PreferredName is a CHAR(). Does this query detect the problem rows?
SELECT 
       CustomerID,
       CustomerName,
       PreferredName
FROM Customer
WHERE CustomerName <> RTRIM(CustomerName)
OR PreferredName <> RTRIM(PreferredName);

See possible answers