Oracle, MySQL, Cassandra, Hadoop Database Training Classes in Lee's Summit, Missouri
Learn Oracle, MySQL, Cassandra, Hadoop Database in Lee's Summit, Missouri 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 Lee's Summit, Missouri: Oracle, MySQL, Cassandra, Hadoop Database Training
Oracle, MySQL, Cassandra, Hadoop Database Training Catalog
Cassandra Classes
Hadoop Classes
Linux Unix Classes
MySQL Classes
Oracle Classes
Course Directory [training on all levels]
- .NET Classes
- Agile/Scrum Classes
- AI Classes
- Ajax Classes
- Android and iPhone Programming Classes
- Azure Classes
- Blaze Advisor Classes
- C Programming Classes
- C# Programming Classes
- C++ Programming Classes
- Cisco Classes
- Cloud Classes
- CompTIA Classes
- Crystal Reports Classes
- Data Classes
- Design Patterns Classes
- DevOps Classes
- Foundations of Web Design & Web Authoring Classes
- Git, Jira, Wicket, Gradle, Tableau Classes
- IBM Classes
- Java Programming Classes
- JBoss Administration Classes
- JUnit, TDD, CPTC, Web Penetration Classes
- Linux Unix Classes
- Machine Learning Classes
- Microsoft Classes
- Microsoft Development Classes
- Microsoft SQL Server Classes
- Microsoft Team Foundation Server Classes
- Microsoft Windows Server Classes
- Oracle, MySQL, Cassandra, Hadoop Database Classes
- Perl Programming Classes
- Python Programming Classes
- Ruby Programming Classes
- SAS Classes
- Security Classes
- SharePoint Classes
- SOA Classes
- Tcl, Awk, Bash, Shell Classes
- UML Classes
- VMWare Classes
- Web Development Classes
- Web Services Classes
- Weblogic Administration Classes
- XML Classes
- ASP.NET Core MVC (VS2022) 
 24 November, 2025 - 25 November, 2025
- RED HAT ENTERPRISE LINUX SYSTEMS ADMIN I 
 3 November, 2025 - 7 November, 2025
- RHCSA EXAM PREP 
 17 November, 2025 - 21 November, 2025
- Python for Scientists 
 8 December, 2025 - 12 December, 2025
- Introduction to Spring 6, Spring Boot 3, and Spring REST 
 15 December, 2025 - 19 December, 2025
- See our complete public course listing 
Blog Entries publications that: entertain, make you think, offer insight
If you’re interested in building modern websites or applications which use ASP, XML, or mobile technology, you’ve heard of Visual Studio .NET. It is one of the more popular suites of development tools available to aspiring programmers, as it consolidates several different tools and languages into the same development environment, which helps in turn to integrate this code across development languages. Here are three important benefits to using the visual studio suite:
· Use of Visual J# - This development tool is specifically oriented towards people who already are familiar with basic Java syntax, and is designed for use by those people to build apps or services which will then run on the Microsoft .NET Framework. This is useful because it fully supports Microsoft Extensions, among other reasons. Visual J# was developed completely independently by Microsoft.
· Utility for Smart Devices – Another huge benefit of using visual studio .NET is the ability to immediately integrate your programming efforts with deployment across a variety of smart devices. PDAs, smartphones, Pocket PCs, and any device which has a limited amount of resources all require a compact framework for the programming of applications it is designed to run.
· XML Web Usage and Support – Because XML services aren’t married to any particular technology or programming language, they can be accessed by any system, and this broad-based utility has made the services increasingly popular. Visual Studio .NET takes advantage of this by fully integrating with XML services, including the ability to create and edit them from scratch.
Memory management is always a priority in pretty much any programming language you would want to use. In the lower level languages such as C, there are a number of functions which help you manage the memory your application uses, but they are not the easiest to use. Some of the more modern programming languages such as Python, Ruby, Perl, and of course the subject of this article, Javascript all have a built in feature called garbage collection.
Garbage collection essentially means that the languages compiler will automatically free the memory being occupied by unused variables and objects, but there is no telling when this could occur. It is purely down to the compiler to decide when the garbage collection process should be initiated.
	Viruses, trojans, and other malicious programs are everywhere. There's always a new threat to your computer's security, and many of these threats invade your computer without you even knowing. Most viruses aren't going to loudly announce themselves, so it's important to know the hidden ways in which your computer can become infected.
	
	
	Infected Files from Other Computers
	
	Whether you're borrowing someone's flash drive or grabbing a file from their computer, your computer can become infected if the file or device you're using already contains a virus, trojan, or other form of malware.
	
	This is a very common issue, and you won't even know there's a problem most of the time. For example, if your computer is connected to other devices on a network, and you decide to pull an important file off of another computer on the network, your computer will become infected if the file you took has a virus attached to it.
	
	Also, if you forgot your flash drive, and you need to use your friend or coworker's device for the day, then even plugging the device into your computer can cause the infection in the flash drive to be transmitted.
	
	
	Downloading Legitimate Programs
	
	Another way your computer can be secretly infected is when you download a legitimate program and run it. There are numerous legitimate programs on the internet that can help you in many ways. The programs themselves could be infected, though.
	
	Also, one of the most common ways your computer can become infected is when you don't read the fine print before you download a program. Some of them may insist that you install another small program in addition to the one you initially chose. The boxes that you are supposed to click to give your consent may already be clicked.
	
	This small extra program is the one that may carry an infection that will spread to your computer when you run the main program. You may get a lot of good use out of the legitimate program, but the virus attached to the extra hidden program can cause you a lot of trouble.
	
	
	Using Vulnerable Applications
	
	Security is a serious matter. If even one of the applications you use on your computer is vulnerable to becoming hacked or infected, then your entire computer is at risk and could become secretly infected. Anything from PDF viewing applications to your operating system can become infected if you don't download the latest security patches and keep everything up-to-date.
	
	
	Not Using Antivirus Software
	
	Antivirus software can protect your computer from a number of viruses, trojans, and other problems. Your computer can become infected in a number of ways, so you need to have good antivirus software to provide strong protection from hidden attacks.
	
	
	Viruses, trojans, and other malware can infect your computer in a variety of hidden ways. To prevent infection and problems, you need to be careful about what you download, and you should keep your applications secure. Also, find reliable antivirus software to help.
Related:
How Do IT Placement Agencies Work?
5 Disruptive Technologies for the Enterprise: What are the Implications?
	 It’s the eternal conundrum of a hiring manager – you have to hire for every single position in the company without any first-hand experience. How to do it? If you can have a trusted programmer sit in on the interview, that’s ideal, of course. But what if you’re hiring your first programmer? Or what if you’re hiring a freelancer? Or what if company policy dictates that you’re the only person allowed to do the interviewing? Well, in that case, you need some helpful advice and your innate bullshit detector. We questioned programmers and hiring managers and compiled a list of dos and don’ts. Here are some things to ask when interviewing programmers:
It’s the eternal conundrum of a hiring manager – you have to hire for every single position in the company without any first-hand experience. How to do it? If you can have a trusted programmer sit in on the interview, that’s ideal, of course. But what if you’re hiring your first programmer? Or what if you’re hiring a freelancer? Or what if company policy dictates that you’re the only person allowed to do the interviewing? Well, in that case, you need some helpful advice and your innate bullshit detector. We questioned programmers and hiring managers and compiled a list of dos and don’ts. Here are some things to ask when interviewing programmers:
Past Experience
Ask the programmer about the biggest disaster of his career so far, and how he handled it. Did he come in at midnight to fix the code? Was he unaware of the problem until someone brought it up? Did someone else handle it? According to our programmer sources, “Anyone worth their salt has caused a major meltdown. If they say they haven’t, they’re lying. Or very, very green.” Pushing a code with bugs in it isn’t necessarily bad. Not handling it well is bad.
As usual, your biggest asset is not knowing the field, it is knowing people. Asking about career disasters can be uncomfortable, but if the interviewee is experienced and honest then she won’t have a problem telling you about it, and you will get an idea of how she handles mishaps. Even if you don’t understand what the disaster was or how it was fixed, you should be able to tell how honest she’s being and how she handles being put on the spot.
Tech Life in Missouri
| Company Name | City | Industry | Secondary Industry | 
|---|---|---|---|
| Patriot Coal Corporation | Saint Louis | Agriculture and Mining | Mining and Quarrying | 
| Solutia Inc. | Saint Louis | Manufacturing | Chemicals and Petrochemicals | 
| Monsanto Company | Saint Louis | Agriculture and Mining | Agriculture and Mining Other | 
| Kansas City Power and Light Company | Kansas City | Energy and Utilities | Gas and Electric Utilities | 
| The Laclede Group, Inc. | Saint Louis | Energy and Utilities | Gas and Electric Utilities | 
| Peabody Energy Corporation | Saint Louis | Agriculture and Mining | Mining and Quarrying | 
| Emerson Electric Company | Saint Louis | Manufacturing | Tools, Hardware and Light Machinery | 
| Energizer Holdings, Inc. | Saint Louis | Manufacturing | Manufacturing Other | 
| Centene Corporation | Saint Louis | Healthcare, Pharmaceuticals and Biotech | Healthcare, Pharmaceuticals, and Biotech Other | 
| Express Scripts | Saint Louis | Healthcare, Pharmaceuticals and Biotech | Pharmaceuticals | 
| Reinsurance Group of America, Incorporated | Chesterfield | Financial Services | Insurance and Risk Management | 
| Ameren Corporation | Saint Louis | Energy and Utilities | Gas and Electric Utilities | 
| DST Systems, Inc. | Kansas City | Computers and Electronics | Networking Equipment and Systems | 
| Inergy, L.P. | Kansas City | Energy and Utilities | Alternative Energy Sources | 
| Leggett and Platt, Incorporated | Carthage | Manufacturing | Furniture Manufacturing | 
| Cerner Corporation | Kansas City | Software and Internet | Software | 
| O'Reilly Automotive, Inc. | Springfield | Retail | Automobile Parts Stores | 
| AMC Theatres | Kansas City | Media and Entertainment | Motion Picture Exhibitors | 
| Sigma-Aldrich Corporation | Saint Louis | Manufacturing | Chemicals and Petrochemicals | 
| HandR Block | Kansas City | Financial Services | Securities Agents and Brokers | 
| Graybar Services, Inc. | Saint Louis | Wholesale and Distribution | Wholesale and Distribution Other | 
| Edward Jones | Saint Louis | Financial Services | Personal Financial Planning and Private Banking | 
| Arch Coal, Inc. | Saint Louis | Energy and Utilities | Alternative Energy Sources | 
| Brown Shoe Company, Inc. | Saint Louis | Retail | Clothing and Shoes Stores | 
| Ralcorp Holdings, Inc. | Saint Louis | Manufacturing | Food and Dairy Product Manufacturing and Packaging | 
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 Missouri 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…














