Technical Article

Concatenating Row Values in Transact-SQL

It is an interesting problem in Transact SQL, for which there are a number of solutions and considerable debate. How do you go about producing a summary result in which a distinguishing column from each row in each particular category is listed in a 'aggregate' column? A simple, and intuitive way of displaying data is surprisingly difficult to achieve. Anith Sen gives a summary of different ways, and offers words of caution over the one you choose.

Technical Article

Recover from a SQL Injection Attack on SQL Server

Lately it seems like SQL Injection attacks have been increasing. Recently our team has worked through resolving a few different SQL Injection attacks across a variety of web sites. Each of these attacks had a number of similarities which proved to point back to the same source. With this information in hand, the resolution should be much quicker. As such, if your web site is attacked with SQL Injection, how should you address it? How can the identification, analysis, recovery and resolution be streamlined? What are some lessons learned?

Blogs

Keeping Redshift System Table History Past 7 Days with S3 Tables

By

Redshift keeps its SYS_* monitoring views for seven days in cluster, which is fine...

Updating the Data API Builder

By

I was updating my session for the Data API Builder (DAB) recently, mostly to...

T-SQL Tuesday #202 Invitation: That One SQL Server Outage You’ll Never Forget

By

I am excited to host T-SQL Tuesday for the first time. I want to...

Read the latest Blogs

Forums

Practical Ways to Approach SQL Server Problems and Case Studies

By academicexpertt

Working with SQL Server can involve more than just writing queries. Understanding database design,...

Measuring Productivity

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Measuring Productivity

Importing Excel files into SQL Server using DuckDB and Python

By Cláudio Tereso

Comments posted to this topic are about the item Importing Excel files into SQL...

Visit the forum

Question of the Day

Tracking All the Queries

I have 3 instances of a brand new long running query that are executing on a SQL Server 2025 instance. Query store is enabled. One of the queries is killed by the administrator, one is cancelled by the user. The other runs to completion. How many rows are in Query Store for this query?

See possible answers