Dwain Camps shows that, depending on the size and characteristics of some hierarchical data, six different methods of traversal can each be the fastest at some point. He illustrates the danger in generalizing from just one set of test data, and that it's foolish to assume that just because SQL code looks neat, it will perform well.
2014-05-14
2,625 reads
This article demonstrates how to create a CLR assembly that can encrypt or decrypt a file with AES-256 cryptography, how to reference the CLR assembly from an SSIS script task, and how to generate an MD5 checksum file so that its recipient can confirm the integrity of the encrypted file.
2014-05-13
6,477 reads
This is an extract from the book Tribal SQL. In this article, Kevin Feasel explains SQL injection attacks, how to defend against them, and how to keep your Chief Information Security Officer from appearing on the nightly news.
2014-05-13
6,136 reads
A short piece that gives you the basics of how to administer the database master keys that form the basis for encryption inside of your databases.
2014-05-12
13,022 reads
Just Azure, a new site from Cerebrata (part of Red Gate), provides essential technical resources and educational articles to support the Microsoft community in navigating and understanding the rapidly evolving Azure platform.
2014-05-12
439 reads
With the introduction of SQL Server 2014 the Microsoft team has enhanced the Resource Governor to now cover I/O. Greg Larsen shows you how to set up Resource Governor to limit the resources for those large I/O operations.
2014-05-12
2,184 reads
Learn how you can get alerts when you centralize the Event log. This is part 2 of the previous article "How to centralize your SQL Server Event Logs."
2014-05-09 (first published: 2012-05-24)
7,430 reads
In this tip we have a very simple data flow using a source query with a predictable duration. The data flow takes longer to process all the rows and even larger buffers didn't make the problem go away. What can be the cause of this and how do we solve this? Koen Verbeeck explains.
2014-05-08
4,049 reads
Robert Sheldon answers 12 questions about XML, including situations you would want to use XML, and how to do basic tasks.
2014-05-07
8,085 reads
Check 96 server and database settings to make sure they match your expectations in your databases with this script.
2014-05-06
4,730 reads
PlanTrace: Stop Reading Redshift EXPLAIN Plans. Start Seeing Them Introducing PlanTrace — a free, browser-based...
By Steve Jones
I went to sleep while reading a Kindle book on my phone. I know...
A conversation with Jan Laš, CIO at HOPI, about what deploying a data agent...
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Cara membuka blokir Bank Jago dapat dilakukan dengan menghubungi Tanya Jago via WhatsApp resmi...
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 TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers