System Data Collection Reports
This article describes how to install the components that make up the Management Data Warehouse (MDW)
2008-12-19
2,663 reads
MDW
SQL Server 2008 Data Collections and the Management Data Warehouse
Data Collections are a great tool that allows DBAs to gather different statistics, and the Management Data Warehouse (MDW) is the repository for storing those statistics. This article offers an overview of Data Collections and how to configure the MDW.
2008-10-09
2,720 reads
Blog: How to Script a Profiler Trace as a SQL Trace Data Collection Set
MVP Brad McGehee shows how you can use Trace data as a source for your data collections for the new Management Data Warehouse
2008-10-01
2,900 reads
Blogs
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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