(Martin) 100% of our studio audience learned something!George gave a great tutorial to get users familiar with using Jupyter notebooks for learning and managing Db2.
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Does Java pass by reference or pass by value?
(Rafael Chinelato Del Nero) Many programming languages allow passing parameters by reference or by value. In Java, we can only pass parameters by value. This imposes some limits and also raises questions.
Using Grep to Find Strings in Markdown .md Files on Windows
(Steve Smith) I recently needed to find which of a bunch of markdown files had a particular string in them. My initial thought, since I’m on Windows, was to use Windows File Explorer’s search dialog. No dice – it found no results when I knew there were some.
Common .NET Controls Crash Course, Part 1: Checkboxes
(Hannes DuPreez) One gets so lost in all that is complicated that you tend to forget the basics. Recently, I had to make use of checkboxes in a project, and I forgot something simple. I suppose it depends on how much you work with certain controls, or in my case, age might be a factor…
Visual Studio’s ‘Find in Files’ Gets Modernization Revamp
(David Ramel) Now that Visual Studio 2019 v16.4 has shipped, the dev team is turning to new priorities in the v16.5 preview round, including the IDE’s “Find in Files” feature, which is getting a modernization revamp.
MySQL Random Password Generation
(Dave Stokes) Many years ago I was working at a university and had to create accounts for students every semester. Each account needed a random password and there were several hacks used to do that.
Oracle Datapatch – out of place patches simplified
(Martin Berger) datapatch was introduced with Oracle 12.1 to simplify management of post-patching steps when a patch (or patchset) is applied.
Bridge network missing Gateway – Docker Issue
(Bobby Curtis) Here is a little something for you. I’m working on building a demo of Oracle GoldenGate Microservices between three (3) containers. In order to do this, I wanted to setup a dedicated network between the containers.
Tips’n’tricks: understanding ‘too many authentication failures’ in SSH
(Martin Bach) Virtualbox VMs powered by Vagrant require authentication via SSH keys so you don’t have to provide a password each time vagrant up is doing its magic. Provisioning tools you run as part of the vagrant up command also rely on the SSH key based authentication to work properly.
Entity Framework Core Disconnected Entities with TrackGraph
(Joydip Kanjilal) The TrackGraph method in Entity Framework Core (EF Core) can be used for handling complex data in disconnected scenarios. This article presents a discussion on how we can work with this method in EF Core.