Table variables can cause performance issues with joins when they contain a large number of rows. In SQL Server 2019, Microsoft has improved how the optimizer works with table variables which can improve performance without making changes to your code. In this article, Greg Larsen explains how this feature works and if it really does make a difference.
2020-06-22
Phil Factor demonstrates a cunning way to test stored procedures or functions, such as after refactoring, by storing the 'before' and 'after' results in views and then using SQL Data Compare to spot any discrepancies.
2020-06-22
You want to check for corruption, but you don’t want to slow down your primary production server. In this post, I’m specifically talking about offloading the corruption checking process. I’m not talking about doing corruption checking on both the primary and other servers – that’s wonderful, and if you’re doing that, you should hug yourself. You’re doing a good job. Who’s a good dog? You are! Good dog.
2020-06-19
Distributed workforces have very quickly become the norm. The 2020 State of Database Monitoring survey explores the impact of remote working on estate management and how organisations are responding. You can read the full findings in the free report, here.
2020-06-19
Microsoft introduced Columnstore with SQL Server 2012 and have improved the feature in every version since then. You may be wondering why they are different than traditional indexes and how they work. In this series, Edward Pollack explains the architecture of Columnstore indexes. In future articles in the series, he will describe best practices for Columnstore.
2020-06-18
Database deployments are on the rise, with more organizations releasing weekly or daily. But this does not always result in more value being delivered. Steve Jones advises the steps you can take to unlock the value of frequent releases in this blog.
2020-06-18
In this article we look at how to find SQL Server deadlocks using the system health Extended Events session.
2020-06-17
Could you spare 3 minutes to help us out at SQL Server Central? Take this short survey, tell us about who you are and why you come to SQL Server Central, and you could win a $50 Amazon voucher.
2020-06-17
Microsoft provides a number of different deployment options for its Azure SQL Database offerings. While most of them share the same characteristics, one in particular warrants special attention from the standpoint of its infrastructure dependencies. That exception is Azure SQL Database Managed Instance, which will be the topic of this article.
2020-06-16
From performance to recruitment, cloud adoption to estate growth, the findings from the 2020 State of Database Monitoring report offer us some key insights into the trends and challenges facing the industry this year. Redgate’s Jamie Wallis unpicks the findings in this latest blog.
2020-06-16
By SQLPals
Track SQL Server Configuration Changes Using the Error Log If you...
Good documentation gets you started. Good books get you deep. After years of working...
By Vinay Thakur
In previous posts, we looked at the SQL Server engine. for us DBAs, the...
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We have a SQL Server installed. We have a 500GB drive for the database....
I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT YearEstablished, json_objectagg(city : TeamName) FROM dbo.NFLTeams GROUP BY YearEstablished;See possible answers