Various way of finding duplicate rows in SQL Server

Recently One of the friend ask how we can find duplicate rows in SQL server so I said there are various way of finding duplicates and then I show him few ways of findings duplicate based on criteria. I thought it is a very basic question and still lots of people does not know how to find duplicate rows in SQL Server. So it is good idea to write blog post about it. In this blog post I’m going to explain the same various way of finding duplicates.

First all, We need a table to find duplicate rows. So following is a table for that.I have created Employee table with four fields.

CREATE TABLE [dbo].[Employee](
    [Id] [int] NOT NULL,
    [FirstName] [nvarchar](50) NULL,
    [LastName] [nvarchar](50) NULL,
    [Designation] [nvarchar](50) NULL
) ON [PRIMARY]

Now once you create this “Employee” table now it’s time to write insert data. I have inserted following data.

Finding duplicate rows in SQL Server:

Now let’s first write query to find duplicate rows in “Employee” table. Following is a query for that.

SELECT
     Id,
     FirstName,
     LastName,
     Designation,
     Count(*) as 'Number of Rows'
FROM Employee 
GROUP BY Id,FirstName,LastName,Designation HAVING COUNT(*) > 1

Once you run this query following result will be there.



If you can see the data of “Employee” table clearly then you will see that there are two people with first name“Tushar” and “Jalpesh”. Let’s find that via following queries.

SELECT
     FirstName,
     Count(*) as 'Number of Rows'
FROM Employee 
GROUP BY FirstName HAVING COUNT(FirstName) > 1

Now when you run this query it will load following result.




That’s it. You can see its very easy to find duplicate rows in SQL Server. Hope you like it. Stay tuned for more.

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Node.js tools for visual studio

In this post we are going to look how we can use node.js application in visual studio with node.js tools for visual studio.

What is Node.js?

As per wikipedia Node.js is a software plateform that is used to built scalable network(specially server side application). Node.js utilizes JavaScript as its scripting language and achieved high throughput via non blocking I/0 and single-threaded event loop.Node.js was created by Ryan Dhal in starting 2009.Its development and maintenance is sponsored by Joyent.

Why we should care about Node.js:

1. It uses JavaScript most popular language of the web.
2. Fast. Powered by incredible V8 virtual machine. It makes JavaScript execution really fast.
3. A Great feet for real-time web application.
4. It’s scales very easily.

Node.js tools for visual studio:

You can download the Node.Js tools from the following link.

https://nodejstools.codeplex.com/

Here are some quick features of Node.Js tools.

1. NTVS support editing, intellisense, profiling, NPM, debugging locally and remotely(Windows, MAC, Linux) as well as Azure web sites and Cloud services.
2. Designed, Developed and Supported by Microsoft Community.

It is available for both Visual Studio 2012 and Visual Studio 2013 both.

Installation of Node.js tools for visual Studio:

It’s very easy to install download the setup and double click setup.exe it will load following screen.



Once you click on install it will load start installing.



After completing installation it will look like following.



Once you are done with installation open visual studio and go to File-> New Project-> JavaScript and you will see node.js template available.



That’s it. Hope you like it. In next post We are going to create first node.js application with Visual Studio. Stay tuned for more..

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Year 2014 resolutions

First of all, Happy new year to all of you!!.  May your all your wishes come true this year.This time I am making resolutions public so I am accountable to my readers. Here are resolutions for year 2014.

1. Should be more active in communities. Since last 3 months I was busy with professional commitments and lot of things happening with life. Now all things are going to be settle down in January month of this year so now I will be more active on communities.
2. Loose weight. I have already started loosing weight via controlling my diet and this year I am planning to loose at least 15 kgs.
3. Write three blog post at least a week.
4. Learn my self new technologies like Node.js and Python.

This four resolution I want to try to achieve lets see how it goes. I will update how I am doing with my resolution each quarter.

Once again happy new year 2014 to all of you!!. Stay tuned for more..

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Book Review: Microsoft Office 2013 Professional 2013 Step by Step

Before some time Microsoft Press and Oreilly sent me Microsoft Office Professional 2013 Step by step by to review. I was so busy at my professional commandment that I was not able to review. Now I get a time to review and here is review of book.

About this book:

Anybody who knows computer Knows about Microsoft Office Suite there are tons of features available in this office suite like Microsoft Word, Microsoft Excel, Microsoft Power point etc.  We all know this software's a little bit but we were not aware tons of feature each software has and this book aim to reveal all this features this can make your life very easy.

This book is designed for beginning to intermediate users. This books contains all the examples that could benefit individual as well as Business organizations.

This book is divided in 8 Parts from getting started to advance features.

Part-1 Office Professional 2013 Fundamentals:

In this part its get started with making user comfortable with Microsoft Office 2013 Environment and then it also highlights some of shared office features. It also highlights how you can use cloud services with your office application and even how you can use office with windows 8 touch device.

Part-2 Word 2013:

This part contains 6 chapters related to word where it get started with getting comfortable in word 2013 and then it also tells about navigation and reading features of word to editing and composing documents. There are some special chapters for presenting information and finalizing documents also.

Part-3 PowerPoint 2013:

This part contains 6 chapters related Powerpoint from getting comfortable in PowerPoint 2013 to finalizing and presenting. If you are a computer geek and you need to present in front of audience this part is for you. You can become expert in Power point via reading this chapters. It also emphasis creating office graphics and adding animation and multimedia.

Part-4 Excel 2013:

If you are an business owner and uses Excel in your day to day activities then this part is for you. This part contains 7 chapters dedicated to excel. Here you learn everything from creating and editing worksheets to analysing data to creating chart and graphics based on your worksheet. 

Part-5 Outlook 2013:

Emails become one of the best communication channel between people this days and If you don’t know Microsoft Outlook email client then you will look like illiterate. This part is for Outlook 2013. Its start with making yourself comfortable with Outlook 2013  to sending emails. It also contains chapters related to Staying on schedule, Working with tasks, Managing contacts and people and last and important tips and tricks about Microsoft Outlook to save your time. Another excellent part!!

Part-6 One Note 2013:

This part contains 6 chapters related to One Note. If you are attending lots of meeting and you need to take notes then this part is for you. There are tons of features explained about One Note to using One note every where.

Part-7 Access 2013:

This part contains 7 chapters related to Access 2013. From creating table to designing forms and reports to querying tables. If you are running a small organization with Microsoft Access you can maintain your data very easily and this part will make you expert of Microsoft Access.

Part-8 Publisher 2013:

This part contains 3 chapters related to Publisher 2013 from making yourself comfortable to creating,saving and exporting publications.

Conclusion:

Microsoft Office Professional 2013 step by step is a great book for the beginners and for intermediate users it can work as reference book. It explains all the components of Office Professional 2013 in very detail, straight forward and easy to understandable way.  This book is very well written by experience authors like Beth Melton, Mark Dodge, Echo Swinford, Andrew Couch, Eric Legault, Ben M. Schorr and Ciprian Adrian Rusen.

If you want to learn in Office 2013 Professional and become expert then this book is must buy for you!! I highly recommend this book for no voice to intermediate users of Office.

On this occasion, I would also like to thank Microsoft Press and Oreilly team for choosing me to review this book. I learn a lot of things in office with the help of this book.

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Creating DJango application with Python in Visual Studio

In previous post I have written about creating a basic python application with visual studio. In this post we are going to learn how we can create a DJango application with Python in Visual Studio with the help of python tools for Visual Studio.

What is DJango?

As per wikipedia, DJango is a free open source web application framework written in python which follow ups model view controller architectural pattern.It is maintained by  DJango Software Foundation an independent non profit organization. Django’s primary goal is to ease the creation of complex, database driven websites. DJango emphasizes reusability and plugability   of component and principle of Don’t repeat your self.

Creating DJango application with Visual Studio :

Let’s create first DJango application with Visual Studio and Python tools for Visual Studio. So to create DJango application with we have to create a new project via File->New Project –> DJango project just like following.



Once you click ok it will create a DJango project like following.



Now it’s time to create our first application. So right click FirstDjango folder and add new DJango App.



Now once you click on DJango app it will open a box like below.



Now its time to install Python Environment to application via right click on python environment in solution explorer and select environment.



Now once you click OK it will add python environment to application.



Now right click python 2.7 and right click it will open up a popup like below.



Once you click on Install Python Package it will open up a dialog like following.


Once you click OK It will install DJango package in Visual Studio after installing lot of files it may take 5 to 10 minutes.



It’s done!! run your first application with DJango with f5 and following you see in browser.



Woohoo!! your first python web application ready. Hope you like it. Stay tuned for more..

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ASP.NET Web API vs WCF

With Microsoft.NET Stack there are lots of way to create service like ASP.NET Web Service, WCF(Windows Communication Foundation) service and now ASP.NET Web API. The developer often get confused mainly between WCF Service and Web API. So I thought it is a good idea to write a blog post to about differences between ASP.NET Web API and WCF Service.

Difference between ASP.NET Web API  and WCF Service:

1. WCF services support multiple transport support like HTTP,TCP,UDP,MSMQ and allow switching between them while ASP.NET Web API is used only http based services best suited for http service and mobile based application back end service. It is an quick and easy way to create http service.
2. WCF support multiple encodings like Text,MTOM while ASP.NET Web API support wide range of media types like XML,JSON etc.
3. WCF Service support Request-Reply, One way and duplex exchange patterns while HTTP service only support Request/Return pattern.

When to choose? What? WCF or Web API

• Choose WCF if you want to support any other transport protocol then HTTP.
• Choose Web API when you want to create resource oriented services very quickly.
• Choose Web API when you want to serve wide variety of clients like browsers, mobile etc.
• Choose WCF when you want to support message queuing, one way messaging and duplicate message communication.

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Creating first python application in Visual Studio

Before some time I have blogged about Python tools in Visual Studio and explained how we install python tools with visual studio and start developing python application with the one of greatest editor in class Visual Studio. In this post we are going to learn how we can create a python application in Visual Studio.

First check whether Python Interpreters are install on your machine or not?

First step for creating python application with Visual Studio is to check whether Python interpreters are installed or not not. To Check this after installing Python tools for Visual Studio go to Tools menu –> Python Environments and it will show a list of python environments available.



If it is not installed, you need to download from http://www.python.org/. I have already installed Python 3.3 so its showing there.

Creating first python application:

Once you install Python tools for visual studio it will also have options to create python application in visual studio. So go to file menu –> new project options->templates-> Select python it will show all the python options available for visual studio just like below.



There you have few options like below.

• From Existing Python Code
• Python Application
• Django Project
• Python MPI Application
• IronPython Application
• IronPython WPF application
• IronPython Silverlight Web page
• IronPython Windows application

As we need to create a simple application for python we are going to our first application with Python application.Once create project it will create application like following.



Now open that PythonApplication1.Py and write following code.



And now run application via pressing f5.



That’s it we are able to run our first application in Visual Studio. Woohoo!! Hope you like it. Stay tuned for more..

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