In this free eBook, Kalen Delaney explains how Microsoft's 2016 In-memory OLTP engine works. In her book, learn how to use lock- and latch-free data structures to allow non-blocking data processing, and find out how to migrate existing tables to Hekaton.
2020-12-30 (first published: 2015-05-13)
55,467 reads
In this free eBook Shawn McGehee offers advice on query tuning, cutting stored procedures, and system process design and implementation for high availability. Discover how to perform backup and restore operations using SQL Server Management Studio (SSMS), basic T-SQL scripts and Redgate's SQL Backup tool.
2020-12-02 (first published: 2014-03-05)
80,501 reads
Download your free copy of SQL Server Transaction Log Management and see why understanding how log files work can make all the difference in a crisis.
2013-06-27
5,550 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...
Comments posted to this topic are about the item Let's Talk Certifications, which is...
Comments posted to this topic are about the item The Hidden Security Risks of...
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