• VB.NET offers code execution that runs under the Common Language Runtime (CLR), resulting in robust, stable and secure applications. Both features of the .NET framework are eagerly obtainable in VB.NET.
• VB.NET is object oriented. This is a major addition that VB6 and other earlier releases didn’t have.
• The .NET framework comes with ADO.NET, which follows the disconnected paradigm, i.e. once the required records are fetched the connection no longer exists.
• It also retrieves the records that are expected to be accessed in the immediate future.
• This enhances Scalability of the application to a great extent.
• VB.NET uses XML to transfer data between the various layers in the DNA Architecture i.e. data are passed as simple text strings.
• Error handling has changed in VB.NET. A new Try-Catch-Finally block has been introduced to handle errors and exceptions as a unit, allowing appropriate action to be taken at the place the error occurred thus discouraging the use of ON ERROR GOTO statement. This again credits to the maintainability of the code.

• Pig is a platform for managing large data.
• It uses high level programming to analyse the data.
• The programming is done using the language pig latin.
• It is simple and highly specific.
• The pig Metastore stores all info about the tables. And we can execute spark sql queries because spark can interact with pig Metastore

• Sqoop is a simple tool used for transferring large amount of data.
• It is used for transferring data from hadoop to relational database.
• sqoop can import data from Oracle,MYSQL,SQl.
• Sqoop metastore is a tool for using hosts in a shared metadata repository. Multiple users and remote users execute saved jobs in metastore.

• Staging table is used to stage the exported data.
• Sqoop breaks down method into multiple transactions. A failing job may create partial knowledge.
• This could result in job failing because it could cause duplication of data or even collision while insertion.
• Staging tables are simple database tables that contain business details.
• Staging table acts as an auxiliary table that’s used to transferred data.
• Sqoop breaks down export method into multiple transactions, it’s possible that a failing export job may lead to partial data being committed to the database

• Sqoop is a simple tool that is used for moving data.
• It is generally used move data from non hadoop data stores.
• These non hadoop data stores are the relational databases and data warehouses .
• Sqoop allows the users to specify the target (i.e) the place where the data is to be moved inside of hadoop from relational databases like Oracle,Teredata.
• Data ingestion is important in any big data project because the volume of data is generally in petabytes or exabytes.
• Hadoop Sqoop and Hadoop Flume are the two tools in Hadoop which is used to gather data from different sources and load them into HDFS.

• Sqoop metastore is an internally implemented database that can hold the definition of a given job.
• It includes details like which database,which table,which approach,what query to extract from,what target to write to and so on.
• Consider an array of SQL databases that have the same structure, but are partitioned by for performance reasons.
• Thus we have the same sqoop job running against multiple database instances at the same time, all unified at a single table in Hadoop.
• In order to get parallelization, we generate a job that manages the Sqoop sub-workflows. This results in 500 distinct sqoop jobs.
• Metastore is used to handle these complexities.

• Apache Sqoop is efficiently transferring data between Relational databases and Apache Hadoop.
• It is used to import data from relational databases such as MySQL, Oracle to Hadoop HDFS, and export from Hadoop file system to relational databases.
• It improves the efficiency of data analysis by combining structured data and unstructured data.
• Sqoop stands for SQL for Hadoop.SQL + HADOOP =SQOOP

• Create an ADODB connection object which is required step for connecting to database as below.

Authentication using Id, Password and details.

• • Provider: For SQL server database the provider is “sqloledb”
  • Server: Open the SQL Server in your machine and Right click on the required Database/ click on properties.

• Click on “View connection Properties”

• User Name and Server details are required from this dialogue box

• objConnection.open “provider=sqloledb; Server=SDWA-160-PC; User Id=SDWA-160; Password=; Database=sample; Trusted_Connection=Yes”
• Hence, Connection setup completed and ready for execution.

• Enter the required SQL query to be executed.
• Execution of the query with the statement below.

• The above mentioned sample script has been executed and the value from the database is retrieved.

• Joomla is a free and open-source Content Management System (CMS) for distributing web content.
• It is built on a Model-View-Controller (MVC) web application framework that can be used individually, and the CMS that allows to build powerful online applications.
• Joomla is one of the most popular website software’s.
• Joomla is an independent platform, user friendly, extendable, multilingual, accessible, responsive, search engine optimized and so much more.

• CMS is an application (web-based), that provides capabilities for multiple users with different permission levels to manage (all or a section of) content, data or information of a website project, or intranet application.
• Managing content refers to creating, editing, archiving, publishing, collaborating on, reporting, distributing website content, data and information.

• Joomla is used to whole world and millions of websites of all shapes and sizes. Joomla can be used for,
  • Corporate websites or portals, intranets and extranets.
  • Small business websites.
  • Online magazines, newspapers, and publications.
  • E-commerce and online reservations.
  • Government, non-profit and organizational websites.
  • Community-based, school and church websites or portals.
  • Personal or family homepages.

• Darwin Information Typing Architecture (DITA) is the most ideal approach to be brilliant about composition and distributing your business content.
• DITA is an open standard that portrays the engineering for making and overseeing data that isolates the substance from the arranging, takes into account a progressively streamlined substance creation process, and opens up the potential outcomes of acquainting less difficult methods for distributing with new advancements, as for cell phones. IBM, which created DITA initially, characterizes DITA as pursues:
• The Darwin Information Typing Architecture (DITA) is a XML-based, end-to-end design for composing, creating, and conveying specialized data.
• This engineering comprises of a lot of structure standards for making “data composed” modules at a subject dimension and for utilizing that content in conveyance modes, for example, online help and item bolster entryways on the Web.

• The information put away in your documentation has esteem.
• What’s more, whatever has an incentive to the association can be treated as an advantage. Making and afterward leaving that data inside a Word or PowerPoint record seriously constrains what you can do with it, and whatever you can do, you need to utilize manual, kludge approaches to do it.
• Making records with conventional instruments in static documents is a wasteful method for composing, refreshing, sharing, and dealing with your data.
• DITA is a general methodology that illuminates that wastefulness.
• DITA emphatically influences your substance in three principle ways;
• It streamlines your substance creation process expands the nature of your substance by institutionalizing it enables you to use your substance in a wide range of ways (reusing it, distributing to numerous configurations, deciphering it effectively)
• Despite the fact that there are numerous advantages to DITA, everything comes down to a certain something: being proficient with your substance so you can spare time and cash.

• DITA is certainly not a specific device. A wide range of apparatuses enable you to creator in DITA. Truth be told, choosing your instrument set is a piece of the procedure of DITA selection.
• DITA isn’t a layout, in spite of the fact that writers regularly use formats to make it considerably quicker and less demanding to compose.
• DITA isn’t a style direct, despite the fact that creators surely advantage from one, with or without DITA content.

• Try not to give the XML a chance to part of DITA alarm you.
• It’s simply the engineering underneath your substance. Each bit of substance gets put away inside labels-titles, sections, requested records-whatever you have to arrange your substance into a characterized set of theme types.
• DITA has a lot of guidelines that state what labels are permitted where, which gives you institutionalization of your substance.
• DITA XML at last completes three things.
• DITA XML composes your substance into points.
• Not all XML does this, but rather DITA has a center arrangement of theme types so you can put the correct kind of data in the correct subject sort, bringing about exceptionally usable substance.
• Consider subjects and even the XML inside themes like Lego® squares. You use them in different approaches to fabricate what you require. At last, they meet up to make more than the individual parts.
• XML isolates content from configuration, making it compact and adaptable. Your words and your arrangement are never again consolidated, which implies they can be overseen and refreshed autonomously.
• For instance, if your marking changes and you have to refresh the text dimension, shading, and style in the entirety of your archives, this will be a focal, once change for any substance put away without organization (in XML).
• XML enables the substance to be changed into numerous different arrangements. A great many people creator in XML and after that distribute to PDF, HTML, and either portable or ePub.
• It’s additionally conceivable to distribute to places you wouldn’t anticipate, similar to Open Office, Excel, and PowerPoint. You’re constrained just by your creative energy.