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  • Data Warehouse PDF: Data Warehousing Concepts (Book)
    $20.20 $9.99 for today 4.6 (115 ratings) Key Highlights of Data Warehouse PDF 221+ pages eBook Designed for beginners Beautifully annotated screenshots You will get lifetime download access of this data warehouse concepts PDF Data Warehouse is a collection of software tool that help analyze large volumes of disparate data….
  • Top 88 Data Modeling Interview Questions and Answers (2021)
    Here are data modelling interview questions for fresher as well as experienced candidates. 1) What is data modelling? Data modelling is the process of creating a model for the data to store in a database. It is a conceptual representation of data objects, the association between different data objects, and…
  • Top 50 Teradata Interview Questions & Answers (2021 Update)
    1) How do you define Teradata? Give some of the primary characteristics of the same. Teradata is basically an RDMS which is used to drive the Datamart, Datawarehouse, OLAP, OLTP, as well as DSS Appliances of the company. Some of the primary characteristics of Teradata are given below. Is capable…
  • Teradata Tutorial: What is? Basic SQL of Teradata Database
    What is Teradata? Teradata is an open-source Database Management System for developing large-scale data warehousing applications. This tool provides support for multiple data warehouse operations simultaneously using the concept of parallelism. Teradata is a massively open processing system that supports Unix/Linux/Windows server platforms. Teradata software is developed by Teradata Corporation,…
  • Top 25 ETL Testing Interview Questions & Answers in 2021
    Following are frequently asked questions in interviews for freshers as well experienced ETL tester and developer. 1) What is ETL? In data warehousing architecture, ETL is an important component, which manages the data for any business process. ETL stands for Extract, Transform and Load. Extract does the process of reading…
  • 20 BEST SIEM Tools & Software Solutions (2021 Update)
    Security Information and Event Management tool is a software solution that aggregates and analyses activity from various resources across your entire IT infrastructure. SIEM tool collects security data from network servers, devices, domain controllers, and more. This type of software also helps you store, normalize, aggregate, and apply analytics to…
  • 15+ BEST Syslog Servers for Windows & Linux (Free/Paid)
    Syslog is a standard for sending log messages within a network. It supports by a variety of devices. The Syslog protocol offers a wide range of system information and, it is an important part of network monitoring. Syslog monitoring tool helps to receive and manage messages from all types of…
  • 30+ BEST Log Management Tools & Software in 2021
    Log Management Software are tools that deal with a large volume of computer-generated messages. It is also known as event logs, audit trails, and audit records. These software generally deal with log collection, storage, retention, rotation, analysis, searching, and reporting. Many such tools offer an advanced visual dashboard to help…
  • 20 Best FREE Flowchart Software | Flowchart Maker (2021)
    A flowchart is a diagram that shows the steps in a process. Flowcharts are often used for training, documenting, and planning. There are numerous ready to use tools available for you to create various types of flowcharts according to the need of your business. Following is a curated list of…
  • 18 BEST Reporting Tools & Software in 2021
    Reporting tools are software that provides reporting, decision making, and business intelligence capabilities. It is also used for converting raw data into knowledge. These tools also allow you to extract and present data in charts, tables, and other visualization formats. Following is a handpicked comparison list of Top Reporting applications…
  • 20 BEST Data Visualization Tools in 2021 [Open Source & Paid]
    Data visualization tools are cloud-based applications that help you to represent raw data in easy to understand graphical formats. You can use these programs to produce customizable bar charts, pie charts, column charts, and more. Following is a handpicked list of Top Data Visualization Tool with their popular features and…
  • 25 BEST Data Mining Tools & Software for Data Mining in 2021
    Data mining is looking for hidden, valid, and all the possible useful patterns in large size data sets. Data Mining is a technique which helps you to discover unsuspected/undiscovered relationships amongst the data for business gains. There, are many useful tools available for Data mining. Following is a curated list…
  • 20 BEST Data Modeling Tools: Design your Database for FREE
    Data modeling is a method of creating a data model for the data to be stored in a database. It conceptually represents data objects, the associations between different data objects, and the rules. Data design tools help you to create a database structure from diagrams, and thereby it becomes easier…
  • 25 Best BI Tools | Top Business Intelligence Software [2021 List]
    What is Business Intelligence Tool? Business Intelligence (BI)Tool is a software that collects, transforms, and presents data to help decision-makers drive business growth. BI tools ingest large amounts of structured and unstructured data from varied sources, transform it and help deduce actionable business insights from the data. Here are the…
  • 5 Best ETL Automation Testing Tools in 2021
    ETL testing is performed before data is moved into a production data warehouse system. It is also known as table balancing or production reconciliation. The main goal of ETL testing is to identify and mitigate data defects. Using tools is imperative to conduct ETL testing considering the volume of data….
  • 20 Best Continuous Integration(CI/CD) Tools in 2021
    With many Continuous Integration tools available in the market, it is quite a tedious task to select the best tool for your project. Following is a list of top 20 CI tools with popular features and download links. 1) Buddy Buddy is a smart CI/CD tool for web developers designed…
  • 15 BEST Data Integration Tools (Open Source & Paid) in 2021
    Data integration is the process of combining data from many different sources. It is used for analysis, business intelligence, reporting. Here is the list of best data integration tools with key features and download links. The list contains both open source(free) and commercial(paid) software. Top Data Integration Software Tools [Free/Paid]…
  • Top 100 Qlikview Interview Questions and Answers for 2021
    Here are Qlikview Interview Questions for fresher as well as experienced candidates to get your dream job. 1) What is QlikView? Qlikview is a business intelligence tool which is used for converting raw data into knowledge. This software acts like a human brain that works on “association” and can go…
  • 25 BEST ETL Tools in 2021 (Free & Paid)
    ETL is a process that extracts the data from different RDBMS source systems, then transforms the data (like applying calculations, concatenations, etc.) and finally loads the data into the Data Warehouse system. ETL stands for Extract-Transform-Load and it is a process of how data is loaded from the source system…
  • 25 BEST Data Warehouse Tools & Software (Open Source/Paid)
    A Data Warehouse is a collection of software tools that help analyze large volumes of disparate data from varied sources to provide meaningful business insights. A Data warehouse is typically used to collect and analyze business data from heterogeneous sources. There are many Data Warehousing tools available in the market….
  • Information vs Knowledge: Key Differences
    What is Information? Information is a set of data that is processed in a meaningful way according to the given requirement. It is processed, structured, or presented in a given context to make it meaningful and useful. Information assigns meaning and improves the reliability of the data. It helps to…
  • MongoDB Tutorial PDF for Beginners (FREE Download)
    $20.20 $9.99 for today 4.6 (115 ratings) Key Highlights of MongoDB Tutorial PDF 107+ pages eBook Designed for beginners Beautifully annotated screenshots You will get lifetime download access of this MongoDB Tutorial PDF MongoDB is a document-oriented NoSQL database used for high volume data storage. In this eBook you will…
  • 25 Best TeamViewer Alternative Software (Free/Paid) in 2021
    We are reader supported and may earn a commission when you buy through links on our site TeamViewer is a remote desktop software that allows you to connect to multiple workstations remotely. It enhances remote control performance by hardware-accelerated image processing. It helps you to drag and drop files from…
  • Top 20 MongoDB Interview Questions & Answers (2021 Update)
    Following are frequently asked MongoDB questions in interviews for freshers as well experienced developer. 1) Explain what is MongoDB? Mongo-DB is a document database which provides high performance, high availability and easy scalability. 2) What is “Namespace” in MongoDB? MongoDB stores BSON (Binary Interchange and Structure Object Notation) objects in…
  • Informatica Cloud Tutorial PDF for Beginners (FREE Download)
    $20.20 $9.99 for today 4.5 (125 ratings) Key Highlights of Informatica Tutorial PDF 234+ pages eBook Designed for beginners Beautifully annotated screenshots You will get lifetime download access of this Informatica PDF Beside supporting normal ETL/data warehouse process that deals with large volume of data, Informatica tool provides a complete…
  • Difference between Information and Data
    What is Data? Data is a raw and unorganized fact that required to be processed to make it meaningful. Data can be simple at the same time unorganized unless it is organized. Generally, data comprises facts, observations, perceptions numbers, characters, symbols, image, etc. Data is always interpreted, by a human…
  • 25 Best Remote Desktop Software (Remote Access Software)
    Remote administration tools help IT professionals to debug remotely. You can perform computer maintenance related tasks remotely. There are a plethora of remote software tools in the market and selecting one for your project could be a challenge. Following is a curated list of Top Remote Access Software/ Screen Sharing…
  • Top 50 Informatica Interview Questions & Answers in 2021
    1. What do you mean by Enterprise Data Warehousing? When the organization data is created at a single point of access it is called as enterprise data warehousing. Data can be provided with a global view to the server via a single source store. One can do periodic analysis on…
  • 9 Best MongoDB alternatives (Open Source & Paid) in 2021
    MongoDB is an open source NoSQL DBMS which uses a document-oriented database model. It supports various forms of data. However, in MongoDB data consumption is high due to de-normalization. So, here, is a curated list of Top 9 MongoDB alternatives. This list includes commercial as well as open-source software with…
  • 30 BEST IT Asset Management Software (Open Source/Paid) in 2021
    IT Asset Management is a business practice that helps to manage information technology assets across the business within your organization. It connects the inventory, financial, contractual as well as risk management duties to control the life cycle of assets. Following is a handpicked list of Top IT Asset Management Software,…
  • Difference Between Fact Table and Dimension Table
    Fact Table: A fact table is a primary table in a dimensional model. A Fact Table contains Measurements/facts Foreign key to dimension table Dimension table: A dimension table contains dimensions of a fact. They are joined to fact table via a foreign key. Dimension tables are de-normalized tables. The Dimension…
  • Performance Tuning in Informatica: Complete Tutorial
    Joiner Transformation Always prefer to perform joins in the database if possible, as database joins are faster than joins created in Informatica joiner transformation. Sort the data before joining if possible, as it decreases the disk I/O performed during joining. Make the table with less no of rows as master…
  • 9 Best MongoDB GUI Client in 2021 (Free & Paid)
    There are many MongoDB management tools available in the market. These tools can improve the productivity of your MongoDB development and admin tasks. Here is the list of most popular MongoDB GUI tools for your business with it’s top features, use, and download link. MongoDB GUI Tools for Windows &…
  • Difference between Data Mining and Data Warehouse
    What is Data warehouse? A data warehouse is a technique for collecting and managing data from varied sources to provide meaningful business insights. It is a blend of technologies and components which allows the strategic use of data. Data Warehouse is electronic storage of a large amount of information by…
  • 29 BEST ITSM Tools (IT Service Management Software) in 2021
    IT Service Management, which is popularly known (ITSM) aims to align the delivery of information technology services with the needs of the enterprise. The focus of ITSM tools is to deliver satisfactory service to the end user. There are many ITSM tools available in the market. Following is a curated…
  • MongoDB vs. MySQL: What’s the difference?
    What is MongoDB? MongoDB is a document-oriented NoSQL database used for high volume data storage. MongoDB is a database that came into light around the mid-2000s. It comes under the category of a NoSQL database. This kind of DBMS uses dynamic schemas that mean that you can create records without…
  • Normalizer Transformation in Informatica with EXAMPLE
    What is Normalizer Transformation? Normalizer is an active transformation, used to convert a single row into multiple rows and vice versa. It is a smart way of representing your data in more organized manner. If in a single row there is repeating data in multiple columns, then it can be…
  • Best 8 Ansible Alternatives & equivalent in 2021
    Ansible is a DevOps tool which automates software provisioning, configuration management, and application deployment. It is used to set up and manage infrastructure and applications. Here, is a curated list of top 8 tools that can easily replace Ansible. This list includes commercial as well as open-source tools with popular…
  • What is Data Reconciliation? Definition, Process, Tools
    What is Data Reconciliation? Data reconciliation (DR) is defined as a process of verification of data during data migration. In this process target data is compared with source data to ensure that the migration architecture is transferring data. Data validation and reconciliation (DVR) means a technology that uses mathematical models…
  • MongoDB Regular Expression (Regex) with Examples
    Regular expressions are used for pattern matching, which is basically for findings strings within documents. Sometimes when retrieving documents in a collection, you may not know exactly what the exact Field value to search for. Hence, one can use regular expressions to assist in retrieving data based on pattern matching…
  • Lookup Transformation in Informatica & Re-usable Transformation Example
    What is Lookup Transformation? Lookup transformation is a passive transformation used to look up a source, source qualifier, or target to get the relevant data. Basically, it’s a kind of join operation in which one of the joining tables is the source data, and the other joining table is the…
  • DataStage Tutorial for Beginners: IBM DataStage (ETL Tool) Training
    What is DataStage? DataStage is an ETL tool used to extract, transform, and load data from the source to the target destination. The source of these data might include sequential files, indexed files, relational databases, external data sources, archives, enterprise applications, etc. DataStage is used to facilitate business analysis by…
  • 30 Best New Relic Alternatives (Open-Source & Paid) in 2021
    New Relic’s is a leading tool for application performance monitoring (APM). It offers real-time data on the performance of your web applications. However, the data you get is not very detailed, and it is also difficult to get your thresholds correctly. New Relic has few other drawbacks. Here, is a…
  • Data Mining Tutorial: What is | Process | Techniques & Examples
    What is Data Mining? Data Mining is a process of finding potentially useful patterns from huge data sets. It is a multi-disciplinary skill that uses machine learning, statistics, and AI to extract information to evaluate future events probability. The insights derived from Data Mining are used for marketing, fraud detection,…
  • Transaction Control Transformation in Informatica: TCL Commands
    What is Transaction Control Transformation? Transaction Control is an active and connected transformation which allows us to commit or rollback transactions during the execution of the mapping. Commit and rollback operations are of significant importance as it guarantees the availability of data. When processing a high volume of data, there…
  • MongoDB Indexing Tutorial – createIndex(), dropindex() Example
    Indexes are very important in any database, and with MongoDB it’s no different. With the use of Indexes, performing queries in MongoDB becomes more efficient. If you had a collection with thousands of documents with no indexes, and then you query to find certain documents, then in such case MongoDB…
  • What is ITSM? IT Service Management Processes, Framework, Benefits
    What is ITSM? ITSM aims to align the delivery of IT services with the needs of the enterprise. The full form of ITSM is IT Service Management. The focus of ITSM tools is to deliver satisfactory service to the end-user. ITSM is a combination of a set of defined policies,…
  • Top 30 Talend Interview Questions & Answers (2021 Update)
    1) What is Talend? Talend is Data Integration & Management Tool. It allows users to convert, merge and update data in various areas of their business. 2) Which language Talend is written? Talend application developed using Java language. 3) When was Talend tool launched? Talend Open Studio (TOS) was Launched…
  • What is Business Intelligence? Definition & Example
    What is Business Intelligence? BI(Business Intelligence) is a set of processes, architectures, and technologies that convert raw data into meaningful information that drives profitable business actions.It is a suite of software and services to transform data into actionable intelligence and knowledge. BI has a direct impact on organization’s strategic, tactical…
  • Sequence Transformation in Informatica with EXAMPLE
    What is Sequence Generator Transformation? Sequence generator transformation is passive so it does not affect the number of input rows. The sequence generator is used to generate primary key values & it’s used to generate numeric sequence values like 1, 2, 3, 4, 5 etc. For example, you want to…
  • Splunk Tutorial for Beginners: What is Splunk Tool? How to Use?
    What is Splunk? Splunk is a software platform widely used for monitoring, searching, analyzing and visualizing the machine-generated data in real time. It performs capturing, indexing, and correlating the real time data in a searchable container and produces graphs, alerts, dashboards and visualizations. Splunk provides easy to access data over…
  • MongoDB Sharding: Step by Step Tutorial with Example
    What is Sharding in MongoDB? Sharding is a concept in MongoDB, which splits large data sets into small data sets across multiple MongoDB instances. Sometimes the data within MongoDB will be so huge, that queries against such big data sets can cause a lot of CPU utilization on the server….
  • Top 42 Microstrategy Interview Questions & Answers in 2021
    1) Explain what is Microstrategy? Microstrategy is an enterprise business intelligence application software vendor. It supports scorecards, interactive dashboards, ad hoc query, high formatted reports, etc. 2) Mention what specific features and functionality do you get with OLAP services? With OLAP services users can create a unique report views by…
  • Hadoop Tutorial PDF: Basics of Big Data Analytics for Beginners
    $20.20 $9.99 for today 4.4 (102 ratings) Key Highlights of Big Data Hadoop Tutorial PDF 149+ pages eBook Designed for beginners Beautifully annotated screenshots You will get lifetime download access of this Hadoop Tutorial PDF BigData is the latest buzzword in the IT Industry. Apache’s Hadoop is a leading Big…
  • Rank Transformation in Informatica with EXAMPLE
    What is Rank Transformation? Rank transformation is an active and connected transformation that performs the filtering of data based on group and ranks. For example, you want to get ten records of employees having highest salary, such kind of filtering can be done by rank transformation. Rank transformation also provides…
  • Nagios Tutorial for Beginners: What is, Installation, Architecture
    What is Continuous Monitoring? Continuous monitoring is a process to detect, report, respond all the attacks which occur in its infrastructure. Once the application is deployed into the server, the role of continuous monitoring comes in to play. The entire process is all about taking care of the company’s infrastructure…
  • Data Lake vs Data Warehouse: What’s the Difference?
    In this tutorial on the difference between Data lake vs. Data warehouse, we will discuss the key differences between Data warehouse vs data lake. But before discussing the difference, let us first learn “What is Data Warehouse?”. What is Data Warehouse? Data Warehouse is a blend of technologies and components…
  • Configure MongoDB with Kerberos Authentication: X.509 Certificates
    While authorization looks at ensuring the client access to the system, the authentication checks what type of access the client has in MongoDB, once they have been authorized into the system. There are various authentication mechanisms, below are just a few of them. MongoDB Authentication using x.509 Certificates Use x.509…
  • 10 Best Data Analytics Tools for Big Data Analysis (2021)
    Big Data Analytics software is widely used in providing meaningful analysis of a large set of data. This software analytical tools help in finding current market trends, customer preferences, and other information. Here are the 10 Best Big Data Analytics Tools with key feature and download links. Best Big Data…
  • Top 13 ServiceNow Interview Questions and Answers in 2021
    1) What is ServiceNow? ServiceNow is a cloud-based IT Service Management tool. It offers a single system of record for IT services, operations, and business management. 2) What is the full form of CMDB? The full form of CMDB is Configuration Management Database. 3) Name all the products of Services…
  • Joiner Transformation in Informatica with EXAMPLE
    What is Joiner Transformation? Joiner transformation is an active and connected transformation that provides you the option to create joins in Informatica. The joins created using joiner transformation are similar to the joins in databases. The advantage of joiner transformation is that joins can be created for heterogeneous systems (different…
  • What is Data Lake? It’s Architecture
    What is Data Lake? A Data Lake is a storage repository that can store large amount of structured, semi-structured, and unstructured data. It is a place to store every type of data in its native format with no fixed limits on account size or file. It offers high data quantity…
  • MongoDB Replication: How to Create MongoDB Replica Set
    What is MongoDB Replication? Replication is referred to the process of ensuring that the same data is available on more than one Mongo DB Server. This is sometimes required for the purpose of increasing data availability. Because if your main MongoDB Server goes down for any reason, there will be…
  • Top 15 Big Data Tools and Software (Open Source) 2021
    Today’s market is flooded with an array of Big Data tools and technologies. They bring cost efficiency, better time management into the data analytical tasks. Here is the list of best big data tools and technologies with their key features and download links. This big data tools list includes handpicked…
  • Data Warehouse vs Data Mart: What is the Difference?
    What is Data Warehouse? A Data Warehouse collects and manages data from varied sources to provide meaningful business insights. It is a collection of data which is separate from the operational systems and supports the decision making of the company. In Data Warehouse data is stored from a historical perspective….
  • Cassandra Tutorial PDF: Download Definitive Guide
    $20.20 $9.99 for today 4.6 (119 ratings) Key Highlights of Cassandra PDF 94+ pages eBook Designed for beginners Beautifully annotated screenshots You will get lifetime download access of this Cassandra PDF Cassandra is a distributed database management system designed for handling a high volume of structured data across commodity servers….
  • Router Transformation in Informatica: Multiple Conditions Example
    What is Router Transformation? Router transformation is an active and connected transformation which is similar to filter transformation, used to filter the source data. The additional functionality provided beside filtering is that the discarded data (filtered out data) can also be collected in the mapping, as well as the multiple…
  • How to Create User & add Role in MongoDB
    MongoDB Create Administrator User Creating a user administrator in MongoDB is done by using the createUser method. The following example shows how this can be done. db.createUser( { user: “Guru99”, pwd: “password”, roles:[{role: “userAdminAnyDatabase” , db:”admin”}]}) Code Explanation: The first step is to specify the “username” and “password” which needs…
  • ServiceNow Tool Tutorial: What is, Use & Reporting Training
    What is ServiceNow? ServiceNow is a cloud-based software platform for IT Service Management (ITSM) which helps to automate IT Business Management. It is designed based on ITIL guidelines to provide service-orientation for tasks, activities, and processes. It uses machine learning to leverage data and workflows to help businesses become faster…
  • Top 23 Cassandra Interview Questions and Answers for 2021
    In this article, we have created a handpicked list of Apache Cassandra interview questions and answers for freshers and experienced candidates. These Cassandra Database interview questions are likely to be asked during your job interview, and they will help you easily crack the interview. Cassandra Database Interview Questions and Answers…
  • Puppet Tutorial for Beginners: What is, Manifest & Resources
    Before we learn Puppet, let’s understand: What is Configuration Management? Configuration management is the process of maintaining software and computer systems (example servers, storage, networks) in a known, desired and consistent state. It also allows access to an accurate historical record of system state for project management and audit purposes….
  • MongoDB Security, Monitoring & Backup (Mongodump)
    One of the key concepts in MongoDB is the management of databases. Important aspects such as security, backup, access to databases are all important concepts when it comes to database administration. In this tutorial, you will learn – Database security overview Backup Procedures – mongodump Mongodb Monitoring Indexing and Performance…
  • What is Data Mart in Data Warehouse? Types & Example
    What is Data Mart? A Data Mart is focused on a single functional area of an organization and contains a subset of data stored in a Data Warehouse. A Data Mart is a condensed version of Data Warehouse and is designed for use by a specific department, unit or set…
  • Aggregator Transformation in Informatica with Example
    What is Aggregator Transformation? Aggregator transformation is an active transformation is used to performs aggregate calculations like sum, average, etc. For example, if you want to calculate the sum of salaries of all employees department wise, we can use the Aggregator Transformation. The aggregate operations are performed over a group…
  • Top 60 Hadoop & MapReduce Interview Questions & Answers (2021)
    👉 Download PDF Following are frequently asked questions in interviews for freshers as well experienced developer. 1) What is Hadoop Map Reduce? For processing large data sets in parallel across a Hadoop cluster, Hadoop MapReduce framework is used. Data analysis uses a two-step map and reduce process. 2) How Hadoop…
  • Big Data Testing Tutorial: What is, Strategy, How to test Hadoop
    Big Data Testing Big Data Testing is a testing process of a big data application in order to ensure that all the functionalities of a big data application works as expected. The goal of big data testing is to make sure that the big data system runs smoothly and error-free…
  • Source Qualifier Transformation in Informatica with EXAMPLE
    What is Source Qualifier Transformation? Source qualifier transformation is an active, connected transformation which is used to represent the rows that the integrations service read. Whenever we add a relational source or a flat file to a mapping, a source qualifier transformation is required. When we add a source to…
  • Cassandra JMX Authentication & Authorization: Create User
    There are two types of security in Apache Cassandra and Datastax enterprise. Internal Authentication Authorization In this tutorial, you will learn, What is Internal Authentication and Authorization Configure Authentication and Authorization Logging in Create New User Authorization Configuring Firewall Enabling JMX Authentication What is Internal Authentication and Authorization Internal authentication…
  • Star and Snowflake Schema in Data Warehouse with Model Examples
    What is Multidimensional schema? Multidimensional Schema is especially designed to model data warehouse systems. The schemas are designed to address the unique needs of very large databases designed for the analytical purpose (OLAP). Types of Data Warehouse Schema: Following are 3 chief types of multidimensional schemas each having its unique…
  • MongoDB Update() Document with Example
    Basic document updates MongoDB provides the update() command to update the documents of a collection. To update only the documents you want to update, you can add a criteria to the update statement so that only selected documents are updated. The basic parameters in the command is a condition for…
  • Hive ETL: Loading JSON, XML, Text Data Examples
    Hive as an ETL and data warehousing tool on top of Hadoop ecosystem provides functionalities like Data modeling, Data manipulation, Data processing and Data querying. Data Extraction in Hive means the creation of tables in Hive and loading structured and semi structured data as well as querying data based on…
  • Top 19 Ansible Interview Questions and Answers for 2021
    1) What Is Ansible? Ansible is a configuration management system. It is used to set up and manage infrastructure and applications. It allows users to deploy and update applications using SSH, without needing to install an agent on a remote system. 2) What’s the use of Ansible? Ansible is used…
  • Hive Functions: Built-in & UDF [User Defined Functions] Example
    Functions are built for a specific purpose to perform operations like Mathematical, arithmetic, logical, and relational on the operands of table column names. Built-in functions These are functions that are already available in Hive. First, we have to check the application requirement, and then we can use these built-in functions…
  • Apache Oozie Tutorial: What is, Workflow, Example – Hadoop
    What is OOZIE? Apache Oozie is a workflow scheduler for Hadoop. It is a system which runs the workflow of dependent jobs. Here, users are permitted to create Directed Acyclic Graphs of workflows, which can be run in parallel and sequentially in Hadoop. In this tutorial, you will learn, How…
  • Ansible Tutorial for Beginners: Playbook, Commands & Example
    What is Ansible? Ansible is an open source automation and orchestration tool for software provisioning, configuration management, and software deployment. Ansible can easily run and configure Unix-like systems as well as Windows systems to provide infrastructure as code. It contains its own declarative programming language for system configuration and management….
  • DataStax DevCenter & OpsCenter Installation Guide
    In this tutorial, you will learn- DevCenter Installation OpsCenter Installation DevCenter Installation DevCenter is the front end query tool where you can write your query and execute it. DevCenter is provided by the Datastax. Here are the steps of running DevCenter installation; Step 1) First of all, download DevCenter from…
  • Count() & Remove() Functions in MongoDB with Example
    MongoDB Count() Function The concept of aggregation is to carry out a computation on the results which are returned in a query. For example, suppose you wanted to know what is the count of documents in a collection as per the query fired, then MongoDB provides the count() function. Example…
  • INFORMATICA Transformations Tutorial & Filter Transformation
    What is Transformation? Transformations is in Informatica are the objects which creates, modifies or passes data to the defined target structures (tables, files or any other target). The purpose of the transformation in Informatica is to modify the source data as per the requirement of target system. It also ensures…
  • Tableau Tutorial PDF for Beginners (FREE Download)
    $20.20 $9.99 for today 4.6 (118 ratings) Key Highlights of Tableau Tutorial PDF 188+ pages eBook Designed for beginners Beautifully annotated screenshots You will get lifetime download access of this Tableau Tutorial PDF Tableau is a pioneering data visualization tool. Tableau connects to almost any data source like Datawarehouse, Excel,…
  • What is Dimensional Modeling in Data Warehouse?
    Dimensional Modeling Dimensional Modeling (DM) is a data structure technique optimized for data storage in a Data warehouse. The purpose of dimensional modeling is to optimize the database for faster retrieval of data. The concept of Dimensional Modelling was developed by Ralph Kimball and consists of “fact” and “dimension” tables. A…
  • What is Hive Query Language: HiveQL Operators
    What is Hive Query Language (HiveQL)? Hive Query Language (HiveQL) is a query language in Apache Hive for processing and analyzing structured data. It separates users from the complexity of Map Reduce programming. It reuses common concepts from relational databases, such as tables, rows, columns, and schema, to ease learning….
  • Best Tableau Competitors | Alternative (Open-source/Paid)
    Tableau is a data visualization tool that can connect to almost any data source. However, its licensing costs could be restrictive. Here, is a curated list of the top 10 tools that can replace Tableau. This list includes commercial as well as Tableau free alternative tools with popular features and…
  • MongoDB Sort() & Limit() Query with Order By Examples
    What is Query Modifications? Mongo DB provides query modifiers such as the ‘limit’ and ‘Orders’ clause to provide more flexibility when executing queries. We will take a look at the following query modifiers MongoDB Limit Query Results This modifier is used to limit the number of documents which are returned…
  • Hadoop Pig Tutorial: What is Apache Pig? Architecture, Example
    We will start with the introduction to Pig What is Apache Pig? Pig is a high-level programming language useful for analyzing large data sets. Pig was a result of development effort at Yahoo! In a MapReduce framework, programs need to be translated into a series of Map and Reduce stages….
  • Cassandra Cluster Setup on Multiple Nodes (Machines)
    Large organization such as Amazon, Facebook, etc. have a huge amounts of data to manage. So these organizations can’t store that huge amount of data on the single machine. This when they use databases like Cassandra with distributed architecture. These organizations store that huge amount of data on multiples nodes….
  • 25 BEST AWS Alternatives (Amazon Web Services Competitors) in 2021
    AWS is Amazon’s cloud computing platform that offers fast, flexible, reliable, and cost-effective solutions. It also offers a service in the form of building blocks which can be used to create and deploy various types of applications in the cloud. However, AWS services set default limits on a resource which…
  • Session Properties in Informatica: Complete Tutorial
    Session property is a set of instructions that instructs Informatica how and when to move the data from source to targets. A session property is a task, just like other tasks that we create in workflow manager. Any session you create must have a mapping associated with it. A session…
  • OLTP vs OLAP: Difference Between OLTP and OLAP
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