Phil Factor reviews the various types of database test that need to run during development work, what sort of test data they require, and the challenges with managing this data, and in keeping the test cell stocked with the correct database, and data, in a way that allows rapid cycles of database testing.
2019-05-20
Jon Hayman explains the Azure-tailored metrics and alerts in SQL Monitor that track use of the limited compute resources available to an Azure SQL Elastic Pool, and to each of the databases in it.
2019-05-17
I don’t have a problem with triggers. They get the job done when you need to implement business logic in a hurry, and you’re not allowed to change the application. As long as you keep the number of statements to a minimum (say, 2-3), and don’t try to do something really slow like fire up a cursor, triggers can be an efficient way to solve hard problems quickly. However, most triggers I run across have a really, really dangerous bug.
2019-05-17
Cosmos DB is Microsoft’s highly scalable, NoSQL database platform running in Azure. It supports four API models, including Key-Value pair and Documents. Pushpa Sekhara provides an overview of Cosmos DB, including some best practices to improve performance.
2019-05-16
In this series of tips we will look at different ways using temporary data in SQL Server along with examples. In this first part we will cover some reasons for doing this and different types of temporary data stores.
2019-05-15
Data imports represent some of the more commonly performed database management tasks. Learn about a number of traditional SQL Server data import techniques that you can leverage when importing data into Azure SQL Database.
2019-05-14
Got a favorite story of unusual, unique, or inspired attempts at data privacy. We'd love to hear them on DBAle's data privacy contest. Share your story for the chance to win a box of beer and the glory of getting your name on DBAle
2019-05-13
In the previous article of this series, Andy Brown of Wise Owl Training explained how to use the oh-so-important CALCULATE function in DAX to make changes to the default filter context within a formula. This article shows how you can use the FILTER function to do something similar and explains the differences between the two approaches.
2019-05-13
Your databases are hosted in the cloud – either in VMs or in a database-as-a-service – and you’re having a performance emergency that’s lasted for more than a day. Queries are slow, customers are getting frustrated, and you’re just not able to get a fix in quickly. Just ask management if they want to throw hardware at it.
2019-05-10
The Matrix is one of the many built-in visualizations found in Power BI. While the Matrix is easy to populate, filtering it is not so straightforward. In this article, Dennes Torres explains how to add a slicer that does the job.
2019-05-09
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...
It's time for T-SQL Tuesday #198! This month's topic is change detection. The post T-SQL...
We suffered a SPAM attack from May 1-6, which unfortunately corresponded with time off...
Hi to all We have situation at a client where someone is illegally changing...
Hi to all We have situation at a client where someone is illegally changing...
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