DevOps Training Classes in St. Peters, Missouri
Learn DevOps in St. Peters, 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 DevOps related training offerings in St. Peters, Missouri: DevOps Training
DevOps Training Catalog
Linux Unix Classes
Microsoft Development 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
- RHCSA EXAM PREP 
 17 November, 2025 - 21 November, 2025
- Object-Oriented Programming in C# Rev. 6.1 
 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
- Fast Track to Java 17 and OO Development 
 8 December, 2025 - 12 December, 2025
- See our complete public course listing 
Blog Entries publications that: entertain, make you think, offer insight
No matter what type of business you’re in, boosting your bottom line is always in the back of your mind. In a rough economy, it can be tempting to focus too much on pulling in more money and not enough on containing it from within.
That’s right, containing it. You have the potential to lose hundreds of thousands of dollars every year right under your nose from something as simple as lack of or ineffective computer training.
How much do the employees you have working for you right now really understand about technology? How good is your IT tech department? Technology changes faster than a blink of an eye and oftentimes, businesses struggle to keep their top employees trained.
With millions of dollars being lost to Internet espionage, file corruption and other computer crimes, staying on top of changes is essential. Recently, online learning centers have been emerging as the go-to method for quick and inexpensive learning. Unfortunately, this type of computer learning isn’t always the best solution.
	 Not getting any hits on your dating profile? It doesn’t mean you’re a loser. There are literally millions of computer dating profiles out there and dozens of free and paid websites to find a date. A dating profile is kind of like a resume for your personal life. To succeed, you have to learn a few tricks to stand out.
 Not getting any hits on your dating profile? It doesn’t mean you’re a loser. There are literally millions of computer dating profiles out there and dozens of free and paid websites to find a date. A dating profile is kind of like a resume for your personal life. To succeed, you have to learn a few tricks to stand out.
Tips to Improve Your Computer Dating Profile
1. Make a Good First Impression
Filling out an online dating profile can be a daunting task. When you’re faced with all that blank space to write about yourself, it gets intimidating. The best way to improve your computer dating odds is to make a good first impression. Start with a good opening line such as a favorite quote or a personal motto you can easy build on.
It’s befuddling when you think about how many ways there are to communicate in 2013. I’d say there are too many new ways to communicate – social media, phone, Skype, instant message, text message, email, it goes on and on. But do any of them outweigh the power of a good old-fashioned face-to-face meeting? Most business executives would argue no. Nothing can replace a face-to-face meeting, at least yet.
That said, face-to-face meetings are without question the most expensive kind, given the travel costs required to make them a reality, and companies around the globe have been trying to make them more financially manageable ever since the recession set in. But recession or no, face-to-face meetings are rarely in the budget cards for small businesses. So how can entrepreneurs around the globe get more out of their virtual meetings while ensuring any physical meeting is worth the cost?
Learning SQL development can seem like an overwhelming task at first. However, mastering just a few key points will help ease your way through 80 percent of the day-to-day challenges when writing stored procedures and solving common problems. Here are three important SQL development factors to keep in mind:
	
	Outer Joins
	One of the most crucial things to understand in SQL server are joins. Joins are a way to retrieve data from two or more tables based on logical relationships between them. Joins dictate how Microsoft SQL Server ought to use data from one table to select the rows in another table. 
	In my experience inner joins are intuitive while outer joins can present additional hours of grief by overlooking associations in the other table(s). The outer join is the key to answering questions about what the database does not have. For example, if you need to make a query to display all the students who are without report-cards, you’ll need a left join to get all students coupled with a “where clause” to return the ones who have nulls for their report card table columns in the results.
	
	Many talented Java script programmers have muddled through the SQL Server by deficient coding around the inner join. As a result, their queries can take five hours to run, whereas, properly written left joins, can take only two seconds to run.
	
	Aggregation
	Grouping results comes up in SQL a lot more than you might think. Knowing how to write a query when answering questions such as, “What’s the average grade for each teacher’s student list?” is invaluable. This kind of question cannot be answered with a single table or solely by joins.  You’ll often find you need to use joins in conjunction with group by statements. Always write the raw query first and then look at the results. Next, you have to figure out the best way to group them, rewrite your select clause and add a group by clause in the end.
	
	Digging Through Data
	I find this is the most lacking skill in many programmers. In fact, many otherwise-talented programmers holding Master’s Degrees fail to get jobs because they couldn’t analyze rows of data objectively during interviews. It’s just something that’s not taught but is crucial to get under you belt. Why? Eventually, some query is not going to perform as you may expect. And, the only way to find discrepancies is to look at rows of data, identify what join isn’t finding a match or where bad data is throwing things into chaos. Get familiar with how joins actually work, even if you have to manually walk through the logic of a large stored procedure’s tree of joins. It’s boring and time-consuming but absolutely necessary.
	
	Take the time to master the core skills that will make you a successful SQL Programmer and avoid queries that run for five hours!
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 DevOps programming
- Get your questions answered by easy to follow, organized DevOps experts
- Get up to speed with vital DevOps 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…














