What is Tableau?
Tableau- the market-leading BI tool used to analyze and visualize data in an easily understandable format. It is business intelligence software, which lets people observe their data. Through the technology partnership with Tableau, the up-to-date Procore reported data could be made available in Tableau using a live data connection with secured Procore.
Tableau provided server, desktop and hosted software to allow users to connect, visualize and explore data. It has native connectors enabling it to query cloud databases, relational databases, spreadsheets and spreadsheets.
Tableau can be termed as
- A data exploration and visualization tool
- It delivers dashboards that support the “insights on the fly.”
- Allows you to identify opportunities, ask questions and spot trends
- Connect to spreadsheets, SQL databases, flat files and Cloud apps
- Delivers visuals that can enhance natural ability to spot visual patterns
What is Tableau used for?
Tableau is a data visualization application lets you analyze structured data of any type and produce interactive and beautiful graphs, reports and dashboards in minutes. You can virtually be connected to any data source after successful installation from spreadsheets to data warehouses providing information in distinct multiple graphic perspectives.
Rapid Data Visualization
People require dynamic data views to discover relationships, understand results, find patterns, uncover structure, locate outliers, and summarize findings. Tableau allows you to ask rapid questions for your data and let you create and modify live charts, dashboards and reports in minutes. Without any programming or training, users using Tableau can perform Data Visualization and can understand data as they’ve never been able to before.
Browse and Explore
Tableau is the leading exploratory database browser in the world. The key step in the analysis process is the ability to start big picture that summarizes data and focuses on specific areas. For conducting useful analysis, it is essential to change the data view quickly. Tableau’s flexible visual interface enables this free-form exploration. The exploratory analysis is further supported by countless undo and redo that allows people to surf databases much like they surf the web.
Creating User Understandable Dashboards
Tableau is used to create dashboards that are easy to communicate directly and clearly. Each dashboard element can present information most effectively according to the latest human perception and research. Tableau provides the type of displays, data expressing ways, charts and bars, tables, maps, scatter plots, and more. Tableau helps you create robust dashboards that inform and impress.
Share and Interact
Imagine sticking Tableau’s clear multidimensional outcomes into Microsoft Office applications and imparting them to other people. Our clients have notoriety for delivering high-affect introductions that are easily understandable.
Publish and Embed
Share your charts, reports, and dashboards by distributing them with Tableau Server. Anybody with legitimate information accreditations can see and associate with those perceptions utilizing only a program. They can even spare custom perspectives, make remarks, or even label top picks.
What is Tableau Reporting Tool?
Tableau is the leading software used for data analytics and visualization software. Most of the companies are implementing on this Tableau technology to reach their business heights in a short period. It is mostly curved with the required software where it is considered as one among the trending reporting tools to appeal visualization. It is the most advanced tool for making your data visual unique thus creating a compelling presentation. The software given can easily blend the data sets given and can perform the calculation with distinct conversion rates.
The availability of data is growing at a rapid pace, and most people are working hard to answer those complex questions that are puzzling in the industry. This often involves disparate, multiple sources, large and others need that is to be connected. It just requires a transformation for better communication in a consumable manner to all the departments.
The primary foundational goal reached up using Tableau Reporting Tool to enhance the capability to create actionable reports to clients. In the industry of data visualization from both internal and external perspectives, one can easily access the top competitors to reach the business goals with an esteem needs.
The significant benefits of Tableau Business Intelligence Reporting tool are listed below:
- Quickly Creation of High Interactive Plans
- Building up of High Interactive Dashboards using GUI
- Connects to R
- Short Learning Curve
Is tableau for free?
Tableau comes in a desktop, online hosted and server model. Tableau explores and visualizes data with its native connectors enabling it to query cloud databases, relational databases, spreadsheets and flat files.
- Tableau Public is free software allows anyone to connect to a spreadsheet of the file and to create interactive web data visualizations.
- Tableau Reader is free software that allows users to open and interact with visualizations built in Tableau.
- Tableau Desktop is used for powerful data visualizations and has an interactive dashboard, and is supported by Windows and Mac.
- Tableau Online is a hosted Tableau Server version to skip hardware setup. It is, reliable, updated and secure. It can be used here as well to access data on the go through iOS or Android apps.
Does Tableau use SQL?
SQL is not a need for Tableau. Being a business Intelligence tool can be integrated with any database be it SQL Server, Oracle, IBM DB2, Mongo, Hadoop, etc.
Tableau has an inbuilt capability to join the tables with left, right, inner or outer joins. Using custom SQL also, you can join tables. The basic knowledge of the SQL would be enough to get knowledge of tableau:
But knowing basics of SQL would help you write custom queries which are not possible through to frag or drop functionality of achieving complex data set building.
- The exposure of SQL Server database experience to development using SQL and TSQL servers helps you to manipulate and extract data from the database to create reports.
- Retrieves data from the database utilizing SQL as required.
- Develops queries, views, functions and stored procedures in SQL Server to support data requirements.
What is Tableau Prep?
Begin with connecting your data from distinct file types, servers or tableau extracts. Double click or drag and drop to bring your tables into the flow pane, and then use operations such as split, filter, rename, join, pivot and union to clean and shape your data. Each step in the process is represented using a virtual flow chart that is created and controlled by you.
Tableau Prep seamlessly works with other Tableau products. At any junction in your flow, you can create a data extract and publish your data source to Tableau Server or Tableau Online; even you can directly open Tableau desktop from within Tableau Prep to preview your data.
Explain Tableau Architecture
Tableau provides a scalable solution for the creation and delivery of web, mobile and desktop analytics.
The architecture of Tableau server is an enterprise-class business analytics platform, which scales up to hundreds of thousands of users. It offers browser-based and powerful mobile analytics, working with a company’s existing data strategy and security protocols.
- provides integrated clustering
- Supports High Availability
- Runs on both physical and Virtual Machines
- Scales out: Is multi-process enabled
- Is secure
- Scales up: Is multi-threaded
How to connect to a Datasource in Tableau
Start with a connecting table before you begin data analyzing to one or more data sources in Tableau. A data source can be as simple as a workbook in excel, an Oracle data warehouse or an elaborated SQL Server. After connecting the data fields that are available in the data window on the workbook’s left side.
Connecting to a Custom SQL Query
Relational data sources connect you to a specific query rather than the entire cause of data. This can often be useful to know what exactly the information you needed and to write SQL queries.
Select Custom SQL in the connection dialogue box.
Type or paste the query into the text box. The button in the upper right corner of the text box opens a more extensive editing window for more complex questions.
Working with Multiple Connections in Tableau
The workbook contains multiple connections to multiple data sources. Each among them is listed at the top of the data window. Each worksheet has a primary connection and can optionally have several secondary connections using data blend.
The primary and the secondary connections are linked by specified relationships. Adding secondary connections in Tableau to the sheet can be useful when you have data in multiple data sources that you want to integrate into a single analysis.
Building Data View in Tableau
To build Data Views using Tableau, you will learn about making views both manually as well as automatically using built-in tools.
Data views are displayed on every worksheet in a table, which is a collection of columns and rows and consists of the components such as Headers, Panes, Axes, Cells and Marks. Additionally, you can optionally show Captions, Titles, Field Labels and Legends.
How Does Tableau Work?
While Tableau lets you analyze databases and spreadsheets like never before, you don’t need to know anything about databases to use Tableau. Tableau is designed to allow business people with no technical training to analyze their data efficiently.
Tableau lets you analyze spreadsheets and databases like never before; it is not essential to know anything about databases to use Tableau. Tableau is designed to allow business people with no technical training to efficiently analyze their data.
Tableau is based on three simple concepts:
- Connect: to connect Tableau to any database that needs to be analyzed.
- Analyze: Data analyzing means viewing, filtering, sorting, performing calculations, reorganizing and summarizing it.
- Share: You can share results with others either sharing workbooks with other users by pasting results into applications like Printing to PDF, Microsoft Office using Tableau Server to publish or embed views across your organization.
Tableau Interview Questions
In this Tableau interview questions blog, providing you with the collection of the most frequently asked questions by interviewers. These are collected after consulting with leading industry experts in the data analytics and visualization field.