Oracle, MySQL, Cassandra, Hadoop Database Training Classes in Elizabeth, New Jersey
Learn Oracle, MySQL, Cassandra, Hadoop Database in Elizabeth, NewJersey and surrounding areas via our hands-on, expert led courses. All of our classes either are offered on an onsite, online or public instructor led basis. Here is a list of our current Oracle, MySQL, Cassandra, Hadoop Database related training offerings in Elizabeth, New Jersey: Oracle, MySQL, Cassandra, Hadoop Database Training
Oracle, MySQL, Cassandra, Hadoop Database Training Catalog
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- Python for Scientists 
 8 December, 2025 - 12 December, 2025
- Object-Oriented Programming in C# Rev. 6.1 
 17 November, 2025 - 21 November, 2025
- Introduction to Spring 6, Spring Boot 3, and Spring REST 
 15 December, 2025 - 19 December, 2025
- RED HAT ENTERPRISE LINUX SYSTEMS ADMIN II 
 8 December, 2025 - 11 December, 2025
- ASP.NET Core MVC (VS2022) 
 24 November, 2025 - 25 November, 2025
- See our complete public course listing 
Blog Entries publications that: entertain, make you think, offer insight
	 There are normally two sides to the story when it comes to employment. On one hand, employers hold the view that the right candidate is a hard find; while on the other, job hunters think that it’s a tasking affair to land a decent job out there.
There are normally two sides to the story when it comes to employment. On one hand, employers hold the view that the right candidate is a hard find; while on the other, job hunters think that it’s a tasking affair to land a decent job out there.
Regardless of which side of the divide you lay, landing good work or workers is a tedious endeavor. For those looking to hire, a single job opening could attract hundreds or thousands of applicants. Sifting through the lot in hope of finding the right fit is no doubt time consuming. Conversely, a job seeker may hold the opinion that he or she is submitting resumes into the big black hole of the Internet, never really anticipating a response, but nevertheless sending them out rather than sit back doing nothing.
A recruitment agency normally keeps an internal database of applicants and resumes for current and future opportunities. They first do a database search to try and identify qualified and screened candidates from their existing crop of talent. Most often the case, they’ll also post open positions online through industry websites and job boards so as to net other possible applicants.
When it comes to IT staffing needs, HR managers even find a more challenging process in their hands. This is because the IT department is one of the most sensitive in any given organization where a single slip-up could be disastrous for the company (think data security, think finances when the IT guys are working in tandem with accounts). You get the picture, right?
	If you are a software developer looking for a slight change, then you have several options available. The process of software development requires multiple types of resources. A software developer performs the construction and delivery of software programs. An experienced software developer gains business knowledge, analytical skills, team management skills and communication skills. All of these skills can be used to divert your development career into a related and slightly varied role in software development.
	
	Production Support Engineer
	A developer can easily switch to the role of a Production Support Engineer. This role entails working with customers and technical teams to report, track and resolve production issues. For some, this might be an exciting opportunity to see the software application from a user’s point of view.
	
	Engineering Manager
	If you have experience in leading a team of developers, you could take the role of an Engineering Manager. This role requires managing a bigger team of developers. The Engineering Manager is also responsible for ensuring the delivery of software products and meeting the deadlines set by Product Management. You will get the opportunity to develop software, if you are inclined to do so. However, you will also take new responsibilities such as performance management, infrastructure management and vendor management.
	
	Partner Engineer
	This role requires some amount development as well as coordination with partners such as vendors and customers. The job of a Partner Engineer is to act as a middleman to help the integration of services with partners via application programming interfaces (APIs). For example, companies such as Twitter and Facebook employ Partner Engineers to integrate their services with customer websites.
	
	Systems Analyst
	Many companies offer developers with an opportunity to switch to Analyst roles. This role involves analyzing system requirements by working with business and technical teams. Many Systems Analysts also work on reviewing, developing and testing application code. This role is suitable for developers with strong analytical skills.
	
	QA Automation Engineer
	This role is responsible for automating test cases with the help of tools such as Java, Ruby and Selenium. This role is ideal for people with prior development experience. QA Automation Engineers work with developers and product managers to define test cases, and to automate and run the test cases. In this role, you will get the opportunity to work on back-end as well as front-end automation tasks. You will remain in touch with programming languages as well as database technologies.
	
	Database Analyst
	Most people gain significant amount of knowledge on databases while working as a software developer. This will help you to switch your role into a Database Analyst. A Database Analyst analyzes database issues, reviews performance problems, writes database scripts and runs queries. This role also provides a path to become a Database Administrator, if you are interested.
	
	Deployment Engineer
	This role is responsible for deploying the code developed by software engineers. You may not be developing application programs in this role. However, you will be responsible for code deployments, pushing the code into test and production environments.
Related:
Surprising Ways Viruses, Malware, Etc. are Infecting Computers
What is the most pressing problem in Project Management for a Software Project Manager?
	Since its foundation, HSG has been a leader in Business Rule Management Systems Training and Consulting services by way of the Blaze Advisor Rule Engine.  Over the years we have provided such services to many of the worlds largest corporations and government institutions whose respective backgrounds include credit card processing, banking, insurance, health and medicine and more, much more.  Such training and consulting services have included:
	
	Create a wrapper object model in either Java, .NET or XML
	
	Identify and catalog business rules
	
	Develop a rule architecture within Blaze Advisor that isolates rule repositories as they relate to functionality and corporate policies
	
	Configure, develop and implement a variety of interfaces to the rule engine from disparate systems ranging from mainframe applications written in Cobol to UNIX/Windows applications using Enterprise Java Beans, Windows Services, Web Services, Fat Clients, Java Messaging Services and Web Applications.
	
	Review and update code to boost efficiency either by way of
	
	    Removing functions calls within conditional statements
	
	    Ensuring that database calls are essential or can be rearchitected in some other manner
	
	    Employing the rete algorithm where necessary
	
	    Paring down extensively large class models
	
	    Deploying such appliations in multi-threaded systems
	
	·         ...
	
	Call us if you:
	
	    are in need of Blaze Advisor Expertise
	    are developing SMEs in Blaze
	    want to speak directly with an expert (no placement agencies)
	    want an affordable alternative to FICO
	    want to work with an industry leader
	 In programming, memory leaks are a common issue, and it occurs when a computer uses memory but does not give it back to the operating system. Experienced programmers have the ability to diagnose a leak based on the symptoms. Some believe every undesired increase in memory usage is a memory leak, but this is not an accurate representation of a leak. Certain leaks only run for a short time and are virtually undetectable.
In programming, memory leaks are a common issue, and it occurs when a computer uses memory but does not give it back to the operating system. Experienced programmers have the ability to diagnose a leak based on the symptoms. Some believe every undesired increase in memory usage is a memory leak, but this is not an accurate representation of a leak. Certain leaks only run for a short time and are virtually undetectable.
	
	Memory Leak Consequences
	
	Applications that suffer severe memory leaks will eventually exceed the memory resulting in a severe slowdown or a termination of the application.
	
	How to Protect Code from Memory Leaks?
	
	Preventing memory leaks in the first place is more convenient than trying to locate the leak later. To do this, you can use defensive programming techniques such as smart pointers for C++.  A smart pointer is safer than a raw pointer because it provides augmented behavior that raw pointers do not have. This includes garbage collection and checking for nulls.
	
	If you are going to use a raw pointer, avoid operations that are dangerous for specific contexts. This means pointer arithmetic and pointer copying. Smart pointers use a reference count for the object being referred to. Once the reference count reaches zero, the excess goes into garbage collection. The most commonly used smart pointer is shared_ptr from the TR1 extensions of the C++ standard library.
	
	Static Analysis
	
	The second approach to memory leaks is referred to as static analysis and attempts to detect errors in your source-code. CodeSonar is one of the effective tools for detection. It provides checkers for the Power of Ten coding rules, and it is especially competent at procedural analysis. However, some might find it lagging for bigger code bases.
	
	How to Handle a Memory Leak
	
	For some memory leaks, the only solution is to read through the code to find and correct the error. Another one of the common approaches to C++ is to use RAII, which an acronym for Resource Acquisition Is Initialization. This approach means associating scoped objects using the acquired resources, which automatically releases the resources when the objects are no longer within scope. RAII has the advantage of knowing when objects exist and when they do not. This gives it a distinct advantage over garbage collection. Regardless, RAII is not always recommended because some situations require ordinary pointers to manage raw memory and increase performance. Use it with caution.
	
	The Most Serious Leaks
	
	Urgency of a leak depends on the situation, and where the leak has occurred in the operating system. Additionally, it becomes more urgent if the leak occurs where the memory is limited such as in embedded systems and portable devices.
	
	To protect code from memory leaks, people have to stay vigilant and avoid codes that could result in a leak. Memory leaks continue until someone turns the system off, which makes the memory available again, but the slow process of a leak can eventually prejudice a machine that normally runs correctly.
Related:
Tech Life in New Jersey
| Company Name | City | Industry | Secondary Industry | 
|---|---|---|---|
| HCB, Inc. | Paramus | Retail | Office Supplies Stores | 
| Wyndham Worldwide Corp. | Parsippany | Travel, Recreation and Leisure | Hotels, Motels and Lodging | 
| Realogy Corporation | Parsippany | Real Estate and Construction | Real Estate Agents and Appraisers | 
| Church and Dwight Co., Inc. | Trenton | Manufacturing | Manufacturing Other | 
| Curtiss-Wright Corporation | Parsippany | Manufacturing | Aerospace and Defense | 
| American Water | Voorhees | Energy and Utilities | Water Treatment and Utilities | 
| Cognizant Technology Solutions Corp. | Teaneck | Computers and Electronics | IT and Network Services and Support | 
| The Great Atlantic and Pacific Tea Co. - AandP | Montvale | Retail | Grocery and Specialty Food Stores | 
| COVANCE INC. | Princeton | Healthcare, Pharmaceuticals and Biotech | Pharmaceuticals | 
| K. Hovnanian Companies, LLC. | Red Bank | Real Estate and Construction | Architecture,Engineering and Design | 
| Burlington Coat Factory Corporation | Burlington | Retail | Clothing and Shoes Stores | 
| GAF Materials Corporation | Wayne | Manufacturing | Concrete, Glass, and Building Materials | 
| Pinnacle Foods Group LLC | Parsippany | Manufacturing | Food and Dairy Product Manufacturing and Packaging | 
| Actavis, Inc | Parsippany | Healthcare, Pharmaceuticals and Biotech | Pharmaceuticals | 
| Hudson City Savings Bank | Paramus | Financial Services | Banks | 
| Celgene Corporation | Summit | Healthcare, Pharmaceuticals and Biotech | Biotechnology | 
| Cytec Industries Inc. | Woodland Park | Manufacturing | Chemicals and Petrochemicals | 
| Campbell Soup Company | Camden | Manufacturing | Food and Dairy Product Manufacturing and Packaging | 
| Covanta Holding Corporation | Morristown | Energy and Utilities | Energy and Utilities Other | 
| New Jersey Resources Corporation | Wall Township | Energy and Utilities | Gas and Electric Utilities | 
| Quest Diagnostics Incorporated | Madison | Healthcare, Pharmaceuticals and Biotech | Diagnostic Laboratories | 
| Rockwood Holdings Inc. | Princeton | Manufacturing | Chemicals and Petrochemicals | 
| Heartland Payment Systems, Incorporated | Princeton | Financial Services | Credit Cards and Related Services | 
| IDT Corporation | Newark | Telecommunications | Wireless and Mobile | 
| John Wiley and Sons, Inc | Hoboken | Media and Entertainment | Newspapers, Books and Periodicals | 
| Bed Bath and Beyond | Union | Retail | Retail Other | 
| The Children's Place Retail Stores, Inc. | Secaucus | Retail | Clothing and Shoes Stores | 
| Hertz Corporation | Park Ridge | Travel, Recreation and Leisure | Rental Cars | 
| Public Service Enterprise Group Incorporated | Newark | Energy and Utilities | Gas and Electric Utilities | 
| Selective Insurance Group, Incorporated | Branchville | Financial Services | Insurance and Risk Management | 
| Avis Budget Group, Inc. | Parsippany | Travel, Recreation and Leisure | Rental Cars | 
| Prudential Financial, Incorporated | Newark | Financial Services | Insurance and Risk Management | 
| Merck and Co., Inc. | Whitehouse Station | Healthcare, Pharmaceuticals and Biotech | Pharmaceuticals | 
| Honeywell International Inc. | Morristown | Manufacturing | Aerospace and Defense | 
| C. R. Bard, Incorporated | New Providence | Healthcare, Pharmaceuticals and Biotech | Medical Supplies and Equipment | 
| Sealed Air Corporation | Elmwood Park | Manufacturing | Plastics and Rubber Manufacturing | 
| The Dun and Bradstreet Corp. | Short Hills | Business Services | Data and Records Management | 
| The Chubb Corporation | Warren | Financial Services | Insurance and Risk Management | 
| Catalent Pharma Solutions Inc | Somerset | Healthcare, Pharmaceuticals and Biotech | Healthcare, Pharmaceuticals, and Biotech Other | 
| Becton, Dickinson and Company | Franklin Lakes | Healthcare, Pharmaceuticals and Biotech | Medical Supplies and Equipment | 
| NRG Energy, Incorporated | Princeton | Energy and Utilities | Gas and Electric Utilities | 
| TOYS R US, INC. | Wayne | Retail | Department Stores | 
| Johnson and Johnson | New Brunswick | Healthcare, Pharmaceuticals and Biotech | Pharmaceuticals | 
| Automatic Data Processing, Incorporated (ADP) | Roseland | Business Services | HR and Recruiting Services | 
training details locations, tags and why hsg
The Hartmann Software Group understands these issues and addresses them and others during any training engagement. Although no IT educational institution can guarantee career or application development success, HSG can get you closer to your goals at a far faster rate than self paced learning and, arguably, than the competition. Here are the reasons why we are so successful at teaching:
- Learn from the experts.  
                                - We have provided software development and other IT related training to many major corporations in New Jersey since 2002.
- Our educators have years of consulting and training experience; moreover, we require each trainer to have cross-discipline expertise i.e. be Java and .NET experts so that you get a broad understanding of how industry wide experts work and think.
 
- Discover tips and tricks about Oracle, MySQL, Cassandra, Hadoop Database programming
- Get your questions answered by easy to follow, organized Oracle, MySQL, Cassandra, Hadoop Database experts
- Get up to speed with vital Oracle, MySQL, Cassandra, Hadoop Database programming tools
- Save on travel expenses by learning right from your desk or home office. Enroll in an online instructor led class. Nearly all of our classes are offered in this way.
- Prepare to hit the ground running for a new job or a new position
- See the big picture and have the instructor fill in the gaps
- We teach with sophisticated learning tools and provide excellent supporting course material
- Books and course material are provided in advance
- Get a book of your choice from the HSG Store as a gift from us when you register for a class
- Gain a lot of practical skills in a short amount of time
- We teach what we know…software
- We care…














