NULL Values It is possible to have no data. At certain places, they are represented by null values. Null means no data tables can have null columns. It depends on the design of our application. Let us look at some examples in HR Schema. If I look at Employees table, I see some columns are nullable represented by yes values here, meaning that they allow null values and some are not nullable, represented by no here, meaning that they do not allow null values. In a glance, we can understand…

Exception for Inner Single Quotes What if there is already a single quote present in the string? It will fail because this single quote will interfere with the actual single quotes encompassing the whole string. This can be avoided by adding one more single quote. As an exception to the inner single quote. I’m going to run this SQL select. Today’s state is Systole from dual. Today’s already has a single quote inside. If I run this, it will fail because this single quote is interfering with the encompassing single…

It has been known for a long time that for specialists of different levels, whether they are beginners trying to start a successful career, or pros with many years of experience, it is useful to have an official certificate confirming their competence. This is a kind of stepping-stone leading you to your cherished career goal, where you will be offered everything you dream about – decent pay, weekend conditions, interesting tasks. But when it comes to project management, how can certification be useful here? Firstly, it is the recognition in…

  Cybersecurity is a priority number one in most companies nowadays, especially, when they have shifted most employees to work remotely. This can be the cause of data breach, unauthorized access, and the work stoppage. To escape and prevent such kind of backfired, organizations should be aware of hacking and secure their devices and networks. If you are one who is interested in this sphere and want to know from where to start or how to boost your career now, then this article is for you. It covers the top…

If you are even minimally involved in networking, you know that Cisco and Juniper are the leading developers of networking equipment and related accreditation pathways for networking professionals. Therefore, most people starting their careers in this field and seeking to undergo comprehensive training are faced with the choice of which vendor to choose and what their decision should be based on. And the fact is that both qualifications have excellent qualities and require some diligence and time on the part of the professional. At the same time, there are aspects…

The digital world is not standing still, especially given the impact the COVID-19 pandemic has had on society. And because it’s easier to adapt to the situation than to wait for a positive resolution, many companies and organizations are encouraging workers to work from home. Therefore, the global remote work format will encourage IBM to offer its partners and clients various resources to protect their businesses and employees by working under new circumstances on adjusted schedules. Thus, a list of online courses has been published on a free basis so…

  Of course, the IBM certification program presents many opportunities to train and qualify specialists in various areas. If you turn to the details, but at the moment this accreditation program includes 189 designations and more than 1,700 badges in various technical directions. As you can imagine, such a wide range of certifications and badges in different areas offers candidates a choice of which path to follow. So, it could be cloud, systems, security, Watson, Watson Customer Engagement, Watson Internet of Things. But we should not forget that in each…

The technology has constantly been evolving to meet the IT market requirements. Since the COVID-19 pandemic, the demand for WFA (work-from-home) strategy has increased. Employees need new conditions they can comfortably work in, which means they need to work from any location, on any device, and they need to get access to definite resources. According to the Gartner’s forecast, about 60% of workers will be working remotely by the end of 2024. In addition, about 75% of organizations will be working in hybrid environment. Thus, the hybrid future is awaiting…

  Being one of the leading software companies in cloud computing and virtualization technology, Citrix has gained its place in the IT market. It is recognized by providing workspace, security, app delivery, and other professional services around the world. In addition, it offers a wide variety of solutions such as Unified Endpoint Management, digital workspaces, SD-WAN, secure access, analytics among many to assist organizations in following a better way to work from any place and on any device. The solutions provided by this company are implemented in such industries as…

  Information Technology Service Management (ITSM) as a set of guidelines that help organizations manage their IT infrastructure, apps, and associated processes. ITIL is one of the leading frameworks the offer the best practices and processes to be adopted in order to provide effective IT service management. To put it simply, it’s what you buy, find the parts which work for your business, implement them, and then, improve them constantly. Despite its previous versions issued, ITIL v3 has become the best version of this framework. It was released in 2007,…