Posts

Showing posts with the label QlikView

Featured Post

SQL Interview Success: Unlocking the Top 5 Frequently Asked Queries

Image
 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

What is 3 Tier Architecture in QlikView

Image
The QlikView is a Windows-based desktop tool that is used by business analysts and developers to create a data model and to layout the graphical user interface (GUI or presentation layer) for QlikView apps. It is within this environment where a developer will use a SQL-like scripting environment augmented by ‘wizards’) to create the linkages (connection strings) to the source data and to transform the data e.g. rename fields, apply expressions) so that it can be analyzed and used within the UI, as well as re-used by other QlikView files. Related: QlikView+Tableau+Jobs (Search and know skills needed) The QlikView Desktop is also the environment where all user interface design and user experience is developed in a drag-and-drop paradigm: everything from graphs and tables containing slices of data to multi-tab architectures to application of color scheme templates and company logos is done here. Qlik View Server (QVS) The QVS is a server-side product that contains the in-memory

QlikView top capabilities comparing to other reporting tools

Image
One of the QlikView’s primary differentiators is the associative user experience it delivers. QlikView is the leading Business Discovery platform . QlikView Real Features -  To Make Visible Your Data, Highly Useful in Data Interpretation It enables users to explore data, make discoveries, and uncover insights that enable them to solve business problems in new ways. Business users conduct searches and interact with dynamic dashboards and analytics from any device. Users can gain unexpected business insights because QlikView Works the way the mind works. With QlikView, users can navigate and interact with data any way they want to — they are not limited to just following predefined drill paths or using preconfigured dashboards. Users ask and answer questions on their own and in groups and teams, forging new paths to insight and decision. With QlikView, discovery is flexible . Business users can see hidden trends and make discoveries like with no other BI platform on th

QlikView Server vs Publisher Top Differences Really Useful to Your Project

Image
The differences between QlikView Server and publisher, I have given for your reference. These are related to internally how differ each other. QLIKVIEW SERVER The QVS is a server-side product.  It contains an  in-memory analytics engine , which handles all client/server communication between a QlikView client (Desktop, IE plugin, AJAX, or Mobile) and the server. The Administrator can have access to the management console to control all aspects of the server deployments (including security, clustering, distribution, etc.)  It also includes a web server to provide front-end access to the documents within. The web server’s user portal is known as Access Point. (It’s important to note that while the QVS contains its web server, one can utilize Microsoft IIS (Internet Information Server) for this purpose, too). The QVS handles client authorization against existing directory providers (Microsoft Active Directory, eDirectory) It also performs read and write to ACLs (access control lists) for

2 Scaling-Up And Scaling-out QlikView's Ideas! That You Can Never Miss

Image
In scale-up architecture A single server is used to serve the QlikView applications. In this case, as more throughput is required, bigger and/or faster hardware (e.g. with more RAM and/or CPU capacity) are added to the same server. The Scale-up architecture In scale-out architecture More servers are added when more throughput is needed to achieve the performance necessary. It is common to see the use of commodity servers in these types of architectures.  As more throughput is required new servers are added, creating a clustered QlikView environment. In these environments, QlikView Server supports load sharing of QlikView applications across multiple physical or logical computers.  QlikView load balancing refers to the ability to distribute the load (i.e. end-user sessions) across the cluster in accordance with a predefined algorithm for selecting which node should take care of a certain session. QlikView Server version 11 supports three different load balancing algorithms. Belo

The 12 best QlikView Interview Questions with answers

1) What is QlikView ? QlikView is a program that makes it possible to retrieve and assimilate data from different sources. Once loaded into the program, the data is presented in a way that is easy to understand and work with. 2) In how many flavors QlikView is available? QlikView comes in three flavours called QlikView Enterprise, QlikView Profesisonal and QlikView Analyzer. If you are running QlikView Enterprise all parts of this tutorial will be relevant for you. If you are running QlikView Professional only the first part “Working with QlikView” is relevant. For those running QlikView Analyzer only the very first lesson may be relevant Related: QlikView+Jobs+technical+Skills 3)How to start QlikView? You start QlikView by double-clicking the QlikView icon in the QlikView group (created during the installation procedure). You will also find QlikView on the Start menu, under Programs. It is also possible to start QlikView by double-clicking the icon of a QlikView file. After Qlik