Featured Post

15 Python Tips : How to Write Code Effectively

-
Image
 Here are some Python tips to keep in mind that will help you write clean, efficient, and bug-free code.     Python Tips for Effective Coding 1. Code Readability and PEP 8  Always aim for clean and readable code by following PEP 8 guidelines.  Use meaningful variable names, avoid excessively long lines (stick to 79 characters), and organize imports properly. 2. Use List Comprehensions List comprehensions are concise and often faster than regular for-loops. Example: squares = [x**2 for x in range(10)] instead of creating an empty list and appending each square value. 3. Take Advantage of Python’s Built-in Libraries  Libraries like itertools, collections, math, and datetime provide powerful functions and data structures that can simplify your code.   For example, collections.Counter can quickly count elements in a list, and itertools.chain can flatten nested lists. 4. Use enumerate Instead of Range     When you need both the index ...
Post a Comment

SAP HANA: Top Data Processing Interview Questions

-
1. How parallel processing is achieved in SAP HANA?

The phrase "divide and conquer" (derived from the Latin saying divide et impera) typically is used when a large problem is divided into a number of smaller, easier-to-solve problems. Regarding performance, processing huge amounts of data is a problem that can be solved by splitting the data into smaller chunks of data, which can be processed in parallel.

2.How data portioning will happen in SAP HANA?

Although servers that are available today can hold terabytes of data in memory and provide up to eight processors per server with up to 10 cores per processor, the amount of data that is stored in an in-memory database or the computing power that is needed to process such quantities of data might exceed the capacity of a single server. To accommodate the memory and computing power requirements that go beyond the limits of a single server, data can be divided into subsets and placed across a cluster of servers, which forms a distributed database.

The individual database tables can be placed on different servers within the cluster. Tables bigger than what a single server can hold can be split into several partitions horizontally (a group of rows per partition) or vertically (a group of columns per partition), with each partition on a separate server within the cluster.

3. What are key features in SAP HANA?

SAP HANA database- The SAP HANA database (which is also referred to as the SAP in-memory database) is a hybrid in-memory database that combines row-based, column-based, and object-based database technology that is optimized to use the parallel processing capabilities of current hardware. It is the heart of SAP offerings, such as SAP HANA.

SAP HANA appliance (SAP HANA) -SAP HANA is a flexible, data source-neutral appliance with which you can analyze large volumes of data in real time without needing to materialize aggregations. It is a combination of hardware and software and is delivered as an optimized appliance with SAP's hardware partners for SAP HANA.

4. Basics of SAP HANA internet of things?


5) What is SAP HANA internet of things?

The customers of discrete manufacturing companies are more and more demanding. They expect individualized solutions with a combination of products and services. To understand their customers’ unique requirements, companies have to capture and analyze real-time data from products through embedded software. Manufacturers are responding with cloud-based platforms. With output and throughput relevant across the entire product and customer life cycles, manufacturers can serve customers in new and more cost-efficient ways, expanding their business opportunities.

6) Case Studies of SAP HANA internet of things?

Many SAP customers are transforming business models with IoT. Let me give you three examples. Using the SAP HANA Cloud Platform and supply chain management solutions including production planning and shop floor management, Harley Davidson increased output by 25 percent by creating an end-to-end connected manufacturing operation from customers to shop floor. Delighted customers can now configure a customized motorcycle up to six hours before final production versus the previous time of 21 days.(ref:SAP)

Another example is how Kaeser transformed its business model. Instead of compressors, Kaeser now sells cubic meters of compressed air through their “Sigma Air Utility” service. Sensors on its compressors at customer sites capture and transmit real-time air metering and quality data for faster error resolution, minimizing downtime. Kaeser is working with SAP on a predictive maintenance solution for its equipment.(ref:SAP)

A third example is GEA, one of the world’s largest suppliers for the food processing industry. GEA is using SAP Predictive Maintenance & Service and SAP IoT connector on the HANA Cloud Platform to help remote technicians monitor machine performance in real-time, identifying and solving problems faster while reducing downtime and increasing product quality.(ref:SAP)

7) What is the motto for IOT?

When processing power is so cheap, you can afford to put processors in places that you couldn't before—not just a business workstation or a home PC but also a telephone, an electricity meter, a bedside lamp, or a teddy bear. We can make objects intelligent. We can make them think and speak. Pundits have dubbed this "physical computing", "ubiquitous computing" or "ubicomp", or "the Internet of Things". Whatever you choose to call it.

8) What is basic architecture in IOT?

Watch Video here.

Related:

Comments

Post a Comment

Thanks for your message. We will get back you.

Popular posts from this blog

How to Fix datetime Import Error in Python Quickly

-
Image
Here's a quick resolution for import datetime Python error . The reason is your .py python script name and datetime  are the same. I'll show you how this error happens and its resolution.   Here's the Resolution for ImportError I've created a script called 'datetime.py.' to check whether the minute value is 'odd' or not. During the import of my python script, I got the import error cannot import name datetime. My Script: datetime.py My script's intention is to find whether the minute value is odd or not. Python Logic from datetime import datetime odds = [ 1 , 3 , 5 , 7 , 9 , 11 , 13 , 15 , 17 , 19 , 21 , 23 , 25 , 27 , 29 , 31 , 33 , 35 , 37 , 39 , 41 , 43 , 45 , 47 , 49 , 51 , 53 , 55 , 57 , 59 ] right_this_minute = datetime.today().minute if right_this_minute in odds: print ( "This minute seems a little odd." ) else : print ( "Not an odd minute." ) ImportError I have imported my datetime.py from Linux. It gives an error ...
Read more

SQL Query: 3 Methods for Calculating Cumulative SUM

-
Image
SQL provides various constructs for calculating cumulative sums, offering flexibility and efficiency in data analysis. In this article, we explore three distinct SQL queries that facilitate the computation of cumulative sums. Each query leverages different SQL constructs to achieve the desired outcome, catering to diverse analytical needs and preferences. Using Window Functions (e.g., PostgreSQL, SQL Server, Oracle) SELECT id, value, SUM(value) OVER (ORDER BY id) AS cumulative_sum  FROM your_table; This query uses the SUM() window function with the OVER clause to calculate the cumulative sum of the value column ordered by the id column. Using Subqueries (e.g., MySQL, SQLite): SELECT t1.id, t1.value, SUM(t2.value) AS cumulative_sum FROM your_table t1 JOIN your_table t2 ON t1.id >= t2.id GROUP BY t1.id, t1.value ORDER BY t1.id; This query uses a self-join to calculate the cumulative sum. It joins the table with itself, matching rows where the id in the first table is greater than...
Read more

Big Data: Top Cloud Computing Interview Questions (1 of 4)

-
Image
The below are frequently asked interview questions on Cloud computing: 1) What is the difference between Cloud and Grid? Grid: -Information service -Security Service -Data management -Execution Manageement Cloud: - Maintains up-to-date information of resources -Create VMs according to user requirement -Application deploment -User management 2) What are the different cloud standards? -Interoperability standards -Security standards -Portability Standards -Governance and Risk standards 3) What are the two different sub-systems in Cloud computing ? -Management sub system -Resource sub system 4)What is Cloud compouting? The promise of cloud computing is ubiquitous access to a broad set of applications and services, which are delivered over the network to multiple customer. 5) Why we need specialized network for Cloud services? The public Internet is the simplest choice for delivering cloud-based services. In this model, the cloud provider simply purchases Inter...
Read more