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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
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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 of the EPM Workspace.
 A report is stored as a BQY file. This file contains the formatting and structure for the report.

What is EPM workspace

The EPM Workspace is similar to a portal, where all Oracle Hyperion applications, reports, and other files can be accessed and integrated using a shared security model. 
The Workspace is accessible through the web browser and contains a filesystem and other gadgets including personal pages and content subscription.

Interactive Reporting is one of the many products that integrate with the Workspace, providing users a central location to save, share, and publish content.

EPM Workspace is the Web user interface that is used to access all Oracle and non-Oracle content.

Web client interface topics

Understanding the Web Client interface is crucial to being proficient in the product.

The different sections of the software contain a variety of different options, but the location of where to find and utilize these options is the same across the tool.

Knowledge of the interface and how to leverage the features of each section is key to unlock the full potential of the product.

The sections of an Interactive Reporting document are the different objects in the software used to aid in querying, analyzing, or displaying information.

There are seven types of unique sections. The specifics of each section will be addressed in the following chapters:
  • The Query section is the main section used to set up and execute a query from a relational or multi-dimensional database.Each Query section is accompanied by a Results section where the data returned from the Query is displayed and can be manipulated.
  • The Table section is similar to the Results section and is used to manipulate and split a dataset into different subsets for analysis.
  • The Pivot section is specific to a Results or Table section, and is used to graphically display data in pivot table format—similar to Microsoft Excel Pivots.
  • The Chart section is also specific to a Results or Table section and is used to display data in a chart.
  • The Report section provides the ability to present pivots, charts, and tables of data in a well formatted document.
  • Dashboards are used to create custom interfaces or interactive displays of key metrics.
Hyperion Top Books

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