In SQL Server 2016 the availability group automatic seeding functionality is implemented. This article will detail the steps to use of SSMS with automatic seeding and its limitations.
2018-03-27
1,562 reads
Once you enable your database to be encrypted with Transparent Data Encryption (TDE), the physical database files, and the database backups are encrypted. If your database and database backup are encrypted, then how can you send the encrypted backup to a person outside your organization?
2018-03-27
2,947 reads
There was a day when you didn’t have many decisions to make about a new SQL Server instance. You had to choose from a few editions and two licensing models: per proc or server cal. It wasn’t long ago that SQL Server would almost always be installed on a physical server on premises, and the […]
2018-03-26
107 reads
Microsoft has released a version of SQL Server 2017 for Linux.
2018-03-26
2,883 reads
Developer shops may decide to use Read Committed Snapshot Isolation (RCSI) to reduce contention, and possibly improve performance, but it is not without its own pitfalls. In this article, Uwe Ricken describes a situation where long running transactions caused a severe performance degradation when RCSI was in use.
2018-03-26
3,103 reads
You have times where you need to copy/paste something out of SSMS' grid view results pane that has a carriage return in it. Trying to copy/paste that data into Excel can be a headache and cause you to waste precious time reformatting. This just offers a tidbit of PowerShell code to help.
2018-03-23 (first published: 2015-09-07)
6,446 reads
Stored procedures, for example, are very easy to document. The comment block at the beginning stays with the code and a CREATE or ALTER script contains everything to reproduce the proc. SQL Server tables, however, are more difficult to document. You can use Extended Properties to document columns and constraints, but working with Extended Properties is difficult at best. Phil Factor demonstrates ways to easily add Extended Properties to your build scripts.
2018-03-23
3,324 reads
This article shows how DefaultBufferMaxRows and DefaultBufferSize properties can be used to improve dataflow task performance.
2018-03-22
37,123 reads
Brent Ozar takes a look at four different ways to get a random row from a large SQL Server table.
2018-03-22
5,124 reads
Joe Celko reminisces about the origins of databases and one of the early pioneers, Charles Bachman. He explains how pointer chains were used to traverse data in the NDL standard and referential integrity that we use today.
2018-03-21
2,756 reads
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
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Comments posted to this topic are about the item 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