Oracle, MySQL, Cassandra, Hadoop Database Training Classes in Ann Arbor, Michigan

Learn Oracle, MySQL, Cassandra, Hadoop Database in Ann Arbor, Michigan 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 Ann Arbor, Michigan: Oracle, MySQL, Cassandra, Hadoop Database Training

We offer private customized training for groups of 3 or more attendees.

Oracle, MySQL, Cassandra, Hadoop Database Training Catalog

Cassandra Classes

Hadoop Classes

cost: $ 1590length: 3 day(s)

Linux Unix Classes

Microsoft Development Classes

MySQL Classes

cost: $ 1190length: 3 day(s)

Oracle Classes

cost: $ 2090length: 5 day(s)

SQL Server Classes

Course Directory [training on all levels]

Upcoming Classes
Gain insight and ideas from students with different perspectives and experiences.

Blog Entries publications that: entertain, make you think, offer insight

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:

The Five Principles of Performance

In Demand IT Skills

The python keyword global is used in a function to distinguish a local representation of a variable with the same name. 

 

glbvar = 0

def setglbvar():
    global glbvar # include this declaration so that updates to glbvar are NOT LOCAL to this function
    glbvar = 1

def printglbvar():
    print glbvar     # No need for global declaration to read value of globvar

setglbvar()
printglbvar()       # Prints 1

In this tutorial we are going to take a look at how you work with strings in Python. Now, any language worth its salt will have a number of options for working with text and Python is probably one of the best to use when it comes to processing text.

If you are new to programming in general you may be wondering what a string is. In terms of programming, a string is classed as any sequence of characters you can type with your keyboard, and let’s face it, if you want your application to be of any use to yourself or other users then you need it to tell you what it’s doing or to prompt you for an action, and that is where strings come into play.

They are your applications way of communicating with the user. Without the ability to enter and display text or software would be pretty useless.

So, how would you create a string in Python? Take a look at the following code:

The iconic software company that is based in King County Washington has been getting almost universally slammed from it's recent Los Angeles press announcement about its entry into the hardware business with the convertible laptop/tablet known as Surface.

Certainly I can see the point that it is now competing with its hardware vendors/partners. Intel has done a good job in the arena creating 'reference designs' without competing with its partners.

There is another viewpoint which seems to be ignored. The cold facts are Microsoft is a public company. This puts Microsoft in a legal position of doing the most it can to return value to its shareholders. Failure to do so means somebody is going to jail.

Microsoft has a vision, which at the end of the day is, a certain way to get enough people to see enough value to hand over their money, to fulfill their fiduciary duty.

Tech Life in Michigan

Home of the Ford Motor Company and many other Fortune 500 and Fortune 1000 Companies, Michigan has a list of famous people that have made their mark on society. Famous Michiganians: Francis Ford Coppola film director; Henry Ford industrialist, Earvin Magic Johnson basketball player; Charles A. Lindbergh aviator; Madonna singer; Stevie Wonder singer; John T. Parsons inventor and William R. Hewlett inventor.
We are imperfect beings in a very imperfect world, and the one thing we can count on is that things will go wrong, and that each and every one of us will have problems. Bob Parsons, Go Daddy Software
other Learning Options
Software developers near Ann Arbor have ample opportunities to meet like minded techie individuals, collaborate and expend their career choices by participating in Meet-Up Groups. The following is a list of Technology Groups in the area.
Fortune 500 and 1000 companies in Michigan that offer opportunities for Oracle, MySQL, Cassandra, Hadoop Database developers
Company Name City Industry Secondary Industry
Lear Corporation Southfield Manufacturing Automobiles, Boats and Motor Vehicles
TRW Automotive Holdings Corp. Livonia Manufacturing Automobiles, Boats and Motor Vehicles
Spartan Stores, Inc. Byron Center Retail Grocery and Specialty Food Stores
Steelcase Inc. Grand Rapids Manufacturing Furniture Manufacturing
Valassis Communications, Inc. Livonia Business Services Advertising, Marketing and PR
Autoliv, Inc. Auburn Hills Manufacturing Automobiles, Boats and Motor Vehicles
Cooper-Standard Automotive Group Novi Manufacturing Automobiles, Boats and Motor Vehicles
Penske Automotive Group, Inc. Bloomfield Hills Retail Automobile Dealers
Con-Way Inc. Ann Arbor Transportation and Storage Freight Hauling (Rail and Truck)
Meritor, Inc. Troy Manufacturing Automobiles, Boats and Motor Vehicles
Visteon Corporation Van Buren Twp Manufacturing Automobiles, Boats and Motor Vehicles
Affinia Group, Inc. Ann Arbor Manufacturing Automobiles, Boats and Motor Vehicles
Perrigo Company Allegan Healthcare, Pharmaceuticals and Biotech Pharmaceuticals
BorgWarner Inc. Auburn Hills Manufacturing Automobiles, Boats and Motor Vehicles
Auto-Owners Insurance Lansing Financial Services Insurance and Risk Management
DTE Energy Company Detroit Energy and Utilities Gas and Electric Utilities
Whirlpool Corporation Benton Harbor Manufacturing Tools, Hardware and Light Machinery
Herman Miller, Inc. Zeeland Manufacturing Furniture Manufacturing
Universal Forest Products Grand Rapids Manufacturing Furniture Manufacturing
Masco Corporation Inc. Taylor Manufacturing Concrete, Glass, and Building Materials
PULTEGROUP, INC. Bloomfield Hills Real Estate and Construction Real Estate & Construction Other
CMS Energy Corporation Jackson Energy and Utilities Energy and Utilities Other
Stryker Corporation Portage Healthcare, Pharmaceuticals and Biotech Medical Devices
General Motors Company (GM) Detroit Manufacturing Automobiles, Boats and Motor Vehicles
Kellogg Company Battle Creek Manufacturing Food and Dairy Product Manufacturing and Packaging
The Dow Chemical Company Midland Manufacturing Chemicals and Petrochemicals
Kelly Services, Inc. Troy Business Services HR and Recruiting Services
Ford Motor Company Dearborn Manufacturing Automobiles, Boats and Motor Vehicles

training details locations, tags and why hsg

A successful career as a software developer or other IT professional requires a solid understanding of software development processes, design patterns, enterprise application architectures, web services, security, networking and much more. The progression from novice to expert can be a daunting endeavor; this is especially true when traversing the learning curve without expert guidance. A common experience is that too much time and money is wasted on a career plan or application due to misinformation.

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.
    1. We have provided software development and other IT related training to many major corporations in Michigan since 2002.
    2. 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…
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Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.