A Database Developer’s Guide to SQL Clone
Phil Factor explains how SQL Clone works, and its multiple benefits when used in daily development and testing work, as well as for other tasks such as training staff to use a new application.
2019-04-05
Articles
How to Implement In-Memory OLTP Quickly and Easily
When you first hear about it, SQL Server’s In-Memory OLTP sounds like a new feature that’s hard to implement, requires a lot of schema changes, and takes planning and downtime. Here Brent Ozar tells you how it’s simply not true, and you can do it in just 3 steps.
2019-04-05
Crosstab queries using PIVOT in SQL Server
In this tip we look at how to construct a SQL Server PIVOT query with an example and explanation.
2019-04-04
How to Monitor IDENTITY columns to prevent unplanned downtime
If a table runs out of IDENTITY values then it, and any dependent services and applications, will be "read-only" until the problem is fixed. Steve Jones explains how to set up a custom monitor to detect and prevent such problems.
2019-04-04
Help us define the state of SQL Server monitoring in 2019
Last year we ran the industry’s first ever state of SQL Server monitoring survey, the results not only gave great insight for the community but helped us shape our product development to ensure we were meeting the needs that you were asking for. So what has changed in a year? Tell us for your chance to win a $250 Amazon voucher.
2019-04-03 (first published: 2019-03-21)
2,280 reads
Reaping the benefits of the Window functions in T-SQL
Exploring the potential benefits of the T-SQL Window functions (OVER, LAG, and LEAD) in this piece. You can learn how to achieve up to 50% performance boost by replacing a single function call.
2019-04-02 (first published: 2014-03-24)
26,302 reads
Enforce SSL for connecting to AWS RDS Instance of SQL Server
Learn how to force all SQL Server connections to an AWS RDS instance to use SSL encrypted connections.
2019-04-02
Have your say on the state of SQL Server monitoring
In this blog, we review the key insights from last year’s State of SQL Server Monitoring report. One year on, how has this changed? Read the blog to find out how you can help us define the state of 2019 plus a chance to win a $250 Amazon voucher.
2019-04-02 (first published: 2019-03-18)
1,864 reads
SQL Server 2019 Adds CosmosDB Support
SQL Server 2019 will bring more than graph query languages. We will be able to use a document query engine and a specific JSON engine.
2019-04-01
3,262 reads
Converting a History Table into a System-Versioned Temporal Table
Temporal tables were introduced with SQL Server 2016. To take advantage of this feature, you might start fresh with a brand new table. It is possible, however, to convert an existing table with accumulated history to the new functionality. In this article, Mala Mahadevan explains how to create temporal tables for both scenarios.
2019-04-01
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
Comments posted to this topic are about the item The Hidden Security Risks of...
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