Configure SQL Server Reporting Services with AWS RDS SQL Server
How do you set up SQL Server Reporting Services in AWS RDS? We will show you how to configure SQL Server Reporting Services in AWS and RDS.
2022-02-17
229 reads
DBBlogger
Key (Lookup) in SQL Server Key Lookup performance
Learn about SQL Server key lookup performance and how to improve the performance of key lookup queries.
2022-02-16
280 reads
SQL Server Execution Plan - Displays Estimated and Actual number of rows
This article focuses on getting the Displays Estimated and Actual number of Rows from the SQL Server Execution Plan. Read More
2022-02-28 (first published: 2022-02-16)
581 reads
SQL Database Backups using DBATools PowerShell Module
Want to learn how to set up a PowerShell DBA environment? Here's how to configure it for SQL Server backups. T
2022-02-08
74 reads
Space used by Individual tables in SQL Server
Learn how to manage SQL Server space used by individual tables with this tutorial. Read more here.
2022-02-14 (first published: 2022-02-01)
684 reads
SQL Server Dynamic Management View(DMV)- sys.dm_exec_requests
Execute the sys.dm_exec_requests DMV in SQL Server Management Studio to get the status of the backup or restore operations.
2022-02-01
283 reads
Get SQL Server Configuration using T-SQL
As a SQL architect or database administrator, it is required to know how to get SQL Server configuration using T-SQL. This post will share
2022-01-28
351 reads
SQL Server – Retrieve Physical Cores, Physical and Virtual CPUs, and Processor type information
Today's post describes SQL queries to get the following information about the processors of a SQL Server instance: 1. The total number of ph
2022-01-28
206 reads
SQL Server - How to comma-separated values into different columns
This article will demonstrate the method to store comma-separated values into different columns using SQL Server(T-SQL) query.
2022-01-28
518 reads
T-SQL Query to change Integration Services Catalog (SSISDB) database Master Key encryption password
Learn how to change the Master Key encryption password for an SQL Server Integration Services Catalog (SSISDB) database in SQL Server.
2022-01-28
100 reads
Blogs
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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