Introduction This article shows how common table expressions (CTE) in SQL Server are naturally suited for navigating trees, such as finding its longest path, or diameter. Recall that a tree is an undirected graph where unique paths exist between any two nodes (i.e. vertices). Any node may be selected as its top node, with its […]
2021-04-19
8,146 reads
In this article we look at using Window Functions in SQL Server, Oracle and PostgreSQL to see the differences and similarities of the syntax.
2021-04-19
The 2021 State of Database Monitoring survey is now open, and we want to know how you’re currently tackling your server, instance, and database monitoring. By taking part, you’ll contribute to the sole industry-wide report on database monitoring, and provide insights into how SQL Server professionals manage their estates and what challenges they face. Plus, you’ll receive an advanced copy of the report and entry to a prize draw to win a $500 Amazon voucher.
2021-04-19
After reading a recent article on identifying islands and gaps in sequential numbers, one of our readers was inspired to develop a more efficient solution for fragmented data. New Author Goce Smilevski brings us his solution and supporting data to show how this can be done better.
2021-04-16 (first published: 2004-11-22)
11,353 reads
A frequent question among those learning about DevOps is "How do we do code reviews in this automated process?". Grant Fritchey shares three options - and a word of caution - to ensure you can appropriately understand the changes happening in your system.
2021-04-16
Keeping databases secure is critical. In this article, Robert Sheldon explains what to monitor for SQL Server security.
2021-04-16
I was asked to load multiple Excel files, each with multiple Excel worksheets. I found a very easy way to complete this in SSIS using a Script Task. This article will explain how I did this. For this example, I have two Excel files, File1.xlsx and File2.xlsx, as shown here: Each Excel File has three […]
2021-04-15
8,296 reads
In this article we will focus on Power Apps canvas apps which are natively optimized for mobile devices and we will look at potential use cases for canvas apps.
2021-04-15
Migration to the cloud and PaaS solutions has accelerated in the past years, and many organizations now manage hybrid estates. To reflect this, the latest release of SQL Monitor adds Azure SQL Managed Instances to its list of supported cloud platforms. This article explains how to monitor performance and activity for Azure SQL Managed Instances using SQL Monitor, with advice on monitoring hybrid estates and migrating from on-prem to Azure SQL Managed Instance.
2021-04-15
A look at one way to detect fraud using R and a machine learning model.
2021-04-14
2,441 reads
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In the Database Engine, when a deadlock is detected, what does the detection interval shrink to (in time)?
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