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SQL Interview Success: Unlocking the Top 5 Frequently Asked Queries

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 Here are the five top commonly asked SQL queries in the interviews. These you can expect in Data Analyst, or, Data Engineer interviews. Top SQL Queries for Interviews 01. Joins The commonly asked question pertains to providing two tables, determining the number of rows that will return on various join types, and the resultant. Table1 -------- id ---- 1 1 2 3 Table2 -------- id ---- 1 3 1 NULL Output ------- Inner join --------------- 5 rows will return The result will be: =============== 1  1 1   1 1   1 1    1 3    3 02. Substring and Concat Here, we need to write an SQL query to make the upper case of the first letter and the small case of the remaining letter. Table1 ------ ename ===== raJu venKat kRIshna Solution: ========== SELECT CONCAT(UPPER(SUBSTRING(name, 1, 1)), LOWER(SUBSTRING(name, 2))) AS capitalized_name FROM Table1; 03. Case statement SQL Query ========= SELECT Code1, Code2,      CASE         WHEN Code1 = 'A' AND Code2 = 'AA' THEN "A" | "A

5 Key Features of SAP HANA IoT

SAP this week pulled the curtain back on a version of its HANA cloud platform tailored specifically to the Internet of Things applications. The company said the private cloud service, based on its in-memory computing platform HANA, will provide the foundation for its IoT application services – analytics, telematics, its connected car services, and manufacturing offerings.

What is Deferment in Card Payments to Read Today

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You are an employee and you are working for a company. You are unable to pay your credit card amount. So you have an option. What is Deferment?  It is a temporary suspension of the repayment of a debt. Most creditors will not offer a deferment unless a debtor’s circumstances prevent him from making payments for a temporary period of time. A debtor, therefore, may need to provide documentation of his circumstances or may need to attest to the truthfulness of the request. Credit Cards Credit card companies do not normally provide a deferment as an option. Instead, a debtor who is experiencing a financial hardship, such as unemployment or a decrease in income, may ask the creditor to agree to reduce payment amount. Many credit card companies offer hardship programs that result in a reduced interest rate and a reduced payment. This may be a short-term plan for one year or less or a long-term arrangement that results in the payoff of the debt within a specific number of years.

5 Key Characteristics of Cloud Computing

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Cloud computing terminology and definition are often confusing for many software developers. The tutorial helps you to know the cloud characteristics quickly. Cloud computing is commonly characterized as providing three types of functionality that provide computing services from a remote location over a network. The National Institute of Standards and Technology (NIST), a U.S. government agency, has a definition of cloud computing that is generally considered the gold standard. Providing Service over a Network generally call it as Cloud Computing Rather than trying to create my own definition, I always defer to NIST's definition. The following information is drawn directly from it. Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or serv

Oracle Hyperion Reporting Basic Tutorial

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Interactive Reporting is an extremely robust and powerful business intelligence tool providing ad-hoc querying, data analysis, dashboards, and other reporting capabilities. Oracle Hyperion Financial Management Business analysts access the software through the EPM Workspace, a central location for viewing and managing content across all of the Hyperion products. The product is extremely flexible and provides analysts with the ability to quickly analyze data and produce deliverables. The software provides a consistent platform for managing content, where documents can be customized, saved, and shared across an organization. What is BQY When working with Interactive Reporting, it is hard to escape the term BQY. BQY or BrioQuery, is the extension given to all Interactive Reporting document files. Developers create BQY files using the Workspace, Interactive Reporting Web Client, or Interactive Reporting Studio—a developer tool used to create and manage BQY documents outside

What is Tableau Software

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Stanford University Computer Science department is the origin of Tableau. The initiation started in the Department of Defense, a sponsored research project. Chris Stolte, a Ph.D. candidate, was researching visualization techniques for exploring relational databases and data cubes. Tableau Invention Stolte's Ph.D. advisor, Professor Pat Hanrahan, a founding member of Pixar and chief architect for Pixar's RenderMan, was a worldwide expert in the science of computer graphics. Chris, Pat, and a team of Stanford Ph. D.s realized that computer graphics could deliver huge gains in people's ability to understand databases. Before Tableau Their invention VizQL™ brought together these two computer science disciplines for the first time. VizQL lets people analyze data just by building drag-and-drop pictures of what they want to see. Tableau 8   While Tableau 8 improves on the previous seven major releases of the software, the core approach to visual design remains the same:

1000 SQL Queries For Practice (Part-1)

Welcome to SQL Tutorial. As I told in my previous posts. Learning SQL needs lot of Practice instead of reading more. In my series of posts, I am giving best SQL examples for practice. So that you can become SQL professional with my tutorials. Always Look For SQL/PL-SQL Job s-Great Demand Ahead for people who has hands-on experience 1000 SQL Queries Download Free 1000 SQL Queries

Overview Of Cloud Standards

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Cloud computing slowly becoming reality. So it has to address many concerns such as security, interoperability, portability, and governance at the earliest opportunity. This can be accelerated by compliance to guidelines and standards defined in consensus by the cloud providers.  Without addressing these concerns, users would be wary to tread this path in spite of its powerful economic model for business computing. Interoperability/integration Interoperability enables products/software components to work with or integrate with each other seamlessly, in order to achieve the desired result. Thus, it provides flexibility and the choice to use multiple products to achieve our needs. This is enabled by either integrating through standard interfaces or by means of a broker that converts one product interface to another. Cloud computing depends on compliance standards. Security Security involves the protection of information assets through various policies, procedures, a