What is a datareader object, DOT NET Programming

Assignment Help:

What is a DataReader object?

The DataReader object helps in retrieving the data from a database in a forward-only, read-only mode. The base class for all the DataReader objects is the DbDataReader class.

The DataReader object is returned as a result of calling the ExecuteReader() method of the Command object. The DataReader object enables faster retrieval of data from databases and increases the performance of .NET applications by giving rapid data access speed. However, it is less preferred as compared to the DataAdapter object because the DataReader object requires an Open connection till it completes reading all the rows of the specified table.

 

An Open connection to read data from large tables consumes most of the system resources. When multiple client applications at the same time access a database by using the DataReader object, the performance of data retrieval and other related processes is substantially decreased. In such a case, the database might refuse connections to other .NET applications unless other clients free the resources.

 


Related Discussions:- What is a datareader object

Need expert web developer, Web Developer Project Description: We are ...

Web Developer Project Description: We are in need of an expert web developer for long term connection; please apply with samples if you have the subsequent skills: ASP.NET

Develop outlook add-in for all versions, Develop Outlook Add-In for all ver...

Develop Outlook Add-In for all versions I need simple code for Outlook(express,2003,2007,2010,2013) Add-In with functionality to repeatedly send CC to the specified email(s), th

I need c# gmail api and wikia api, Project Description: I am preparing a...

Project Description: I am preparing a speech recognition program and need a quick code to get it done I am seeking for someone to create a Gmail API that can get subject, and co

What is difference between system.string, What is difference between System...

What is difference between System.String and System.StringBuilder classes? String and StringBuilder classes are used to store string values but the dissimilarity in them is tha

What is xml dom, What is XML DOM? The DOM stands for Document Object Mo...

What is XML DOM? The DOM stands for Document Object Model, which explains the logical formation of documents and provides the way to access and manipulate a document. It suppli

What is plinq, What is PLINQ? PLINQ stands for Parallel Language Integr...

What is PLINQ? PLINQ stands for Parallel Language Integrated Query. It is the parallel execution of LINQ, in which a query can be implemented by using multiple processors. PLIN

I want simple code for outlook, I want simple code for Outlook (express,200...

I want simple code for Outlook (express,2003,2007,2010,2013) Add-In with functionality to routinely send CC to the specified email(s), this system should have -Code for every th

CSS, Howto create a simple stylesheet for a web application

Howto create a simple stylesheet for a web application

What is sql cache dependency?, The SQL cache dependencies is a new characte...

The SQL cache dependencies is a new characteristic in ASP.NET 2.0 which can automatically invalidate a cached data object (like a Dataset) when the related data is modified in the

Best practice while implement globalization & localization, What are the be...

What are the best practices while implementing globalization and localization? The best methods while developing international language support software are shown below:- 1)

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd