Hey Junior Geeks,  In this article we will see how to install and configure VirtualBox and then Setup a Linux CentOS box running on your Windows machine with inside VirtualBox. Use the links below to download the installers: Download Links: VirtualBox https://www.virtualbox.org/ CentOS ISO https://www.centos.org/download/    When you finished downloading...

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Here is a direct comparisons between the services provided by Microsoft Azure and Amazon Web Services. The list contains all the services that could be mapped as similar in actions and usage. Microsoft Azure Amazon Web Services (AWS) Available Regions Azure Regions AWS Global Infrastructure Compute Services Virtual Machines (VMs) Elastic Compute Cloud (EC2) Cloud...

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In this Article we will see how to create a group on an Linux RedHat system step by step. Description of the task Groups allow system administrators to apply certain permissions or access to groups of users. Groups must be created first before you can assign a user...

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Description or the error When you encounter an ORA-00904 error, the following error message will appear: ORA-00904: invalid identifier Cause You tried to execute a SQL statement that included an invalid column name or the column name is missing. This commonly occurs when you reference an invalid alias...

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