What is interpolation?
In this article, Joe Celko explains interpolation and covers a bit about the history and what we all did before computers.
2021-03-31
Articles
Building reusable table build scripts using SQL Prompt
You need a fast, general-purpose way to save the results of a query or batch or procedure into any sort of worktable, such as a temporary table or a table variable or table valued parameter. A simple SELECT…INTO isn't versatile enough for these requirements, and the alternative ways to handcraft the list of columns are slow and error prone. Phil Factor shows how to create a 'table-build generator' that will do all this, and save you a lot of time, especially if you use a lot of working tables in your code.
2021-03-30
Using Kerberos Configuration Manager for SPNs Validation
Learn how to manage and troubleshoot Kerberos authentication for SQL Server using the Kerberos Configuration Manager.
2021-03-30
System-Versioned Temporal Tables - A Case Study
A short look at temporal tables and how to deal with the system generated historical tables.
2021-03-29
3,973 reads
Combine Multiple SQL Server Query Results with Registered Servers
Learn how to configure and use SQL Server Management Studio to do run the same query against many different SQL Servers and consolidate the results.
2021-03-29
Customizations in SQL Prompt
In this brand new course on the Redgate University Grant Fritchey walks you through the many ways in which SQL Prompt can be customized to suit your specific needs.
2021-03-29
2021-03-26 (first published: 2018-12-10)
13,603 reads
Power BI Smart Narrative
A new feature in Power BI is the Smart Narrative that allows you to add a textual narrative to your reports to help provide additional information to the user.
2021-03-26
Why is my SQL Server Query Suddenly Slow?
A SQL Server query is suddenly running slowly, for no obvious reason. Grant Fritchey shares a 5-point plan to help you track down the cause and fix the problem.
2021-03-26
Hacking the DTSX (SSIS XML file) to Change Defaults
Introduction According to Microsoft, DTSX is an XML-based file format that stores the instructions for the processing of a data flow from its points of origin to its points of destination, including transformations and optional processing steps between the origin and destination points. In a nutshell, when you are creating your SSIS package, the SQL […]
2021-03-25
4,695 reads
Blogs
How to Clear the SSMS Cache (SSMS 21 and Later)
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The flight recorder: Replaying what an AI agent did on my SQL Server
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Forums
Let's Talk Certifications
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The Hidden Security Risks of Role Combination in SSAS Tabular
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The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers