Mount an Azure Data Lake Storage Gen2 Account in Databricks
In this article we will walk through a clear end-to-end process of securely mounting an ADLS gen2 account in Databricks.
2021-09-17
Articles
Prepare, Blend, and Analyze Salesforce Data in Alteryx Designer
The ODBC Driver for Salesforce from CData provides ODBC-based access to live Salesforce data, allowing you to interact with Salesforce data in a range of BI, reporting, and ETL tools — as well as directly using SQL queries. In this article, we demonstrate how to connect to Salesforce data using an ODBC connection in Alteryx Designer to conduct self-service BI, data preparation, data blending, and advanced […]
2021-09-15
589 reads
Text Mining and Sentiment Analysis: Oracle Text
Oracle has built-in functionality to analyze text. Sanil Mhatre demonstrates how to perform a sentiment analysis on data stored in a table using Oracle Text.
2021-09-15
Be aware of the risk that you are taking when using AWS EC2 I3 instance type
The AWS I3 storage optimized instance family has a potential problem if you choose to use it for storing your data.
2021-09-14
8,892 reads
Our Top Findings from The State of Database Monitoring Survey
Over 2500 global database professionals answered questions on their experiences with database monitoring in our annual survey earlier this year. We’re creating four reports from the findings and in our first, The real-world challenges of growing server estates, you’ll discover both insights and trends along with advice for how to tackle the most common challenges.
2021-09-13
SQL Server identity column
The SQL Server identity column is used to populate a column with incrementing numbers on insert. In this article, Greg Larsen explains how it works.
2021-09-13
Array and Custom Data Types in PostgreSQL
Introduction Just like every other database, PostgreSQL has its own set of basic datatypes, like Boolean, Varchar, Text, Date, Time, etc. We can easily store data like numbers, characters, date, time, etc. using these supported datatypes, but what if we need to store multiple data elements in a single column? Suppose we are storing the […]
2021-09-10
13,473 reads
Oracle sequences – 12c features including “identity”
Oracle added several enhancements to the sequence object in version 12c, including an “identity” column feature. Jonathan Lewis explains how to work with these new features.
2021-09-10
Register Now For PASS Data Community Summit 2021
Registration is now open for our free and online data platform conference. Join 1000s of your data peers at PASS Data Community Summit and get access to up to 5 days of training, sessions, networking activities, and events. This year's program has been carefully designed to help you achieve your goals, wherever you are in your data career.
2021-09-10 (first published: 2021-09-03)
Disable or Enable All SQL Server Agent Jobs
In this article we look at a PowerShell script that you can use to centrally enable and disable any SQL Server Agent Job on any instance of SQL Server.
2021-09-08
Blogs
How to Clear the SSMS Cache (SSMS 21 and Later)
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
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