Tuesday, October 6, 2015

SQL : Sql Query Execution Order

Most programming languages executes set of statements from Top to Bottom but SQL Server executes set of statements in a logical order which is uniquely decides by the SQL Server in a predefined order known as Logical Query processing phase.

Introduction

When we are developing an application our concern mostly related to the code optimization which enhances the performance of application. When we are talking about an application it has broadly divided into two part one is the our code written in any programming language and other is the code written in database which executes at database level and return the results to our application.
In real world most application facing the performance issue which can be improved by code optimization. Here we will talk about the SQL query optimization.Most programming languages executes set of statements from Top to Bottom but SQL Server executes set of statements in a logical order which is uniquely decides by the SQL Server in a predefined order known as Logical Query processing phase.

C# : What is New in C# 6.0?


New features in C#6.0
In this post we will see the newly added features in C# 6.0. In C# 6.0 some very cool features has been added like "Auto-property Enhancements", "Primary Constructors", "Expressions as Function Body", "Use of Static", "Exception Filters", "inline declarations", "nameof Expressions", "Null-conditional Operators", "String interpolation", "Await in catch and finally".





Introduction

Here, you will find nine new cool features of C# 6.0:

  1. Auto-property Enhancements
  2. Parameters on Classes and Structs
  3. Using Static
  4. Exception Filters
  5. Null-conditional Operators
  6. Index Initializers
  7. $ sign
  8. String Interpolation
  9. nameof Expression
  10. Await in catch and finally block

Thursday, August 29, 2013

C#: Difference between “throw” and “throw ex” in C# .Net Exception

In day to day development, we all are very familiar with Exception  handling. We pretty much all know that we should wrap the code which may cause for any error in try/catch block and do something about error like give a error message to end user. Here I am not going to explain about Exception handling in C#. Instead I am going to talk about a particular aspect of Exception  handling, which is "throw" vs "throw ex".

You can also find my other articles related to C#ASP.Net jQuery, Java Script and SQL Server. I am writing this post because I was asked this question recently in a interview and unfortunately I didn't  know the answer. So I am posting this for those guys who uses "throw" and "throw ex" frequently but don't know the differences (not all,some knows).

Difference between “throw” and “throw ex”

Take a look on the below code snippest-
throw ex throw

try
{
   //Code which fails and raise the error
}
catch (Exception ex)
{
   throw ex;
}

try
{
   //Code which fails and raise the error
}
catch (Exception ex)
{
   throw;
}

Wednesday, August 14, 2013

LINQ- Difference between First and FirstOrDefault- First vs FirstOrDefault

In my previous post Single vs SingleOrDefault, we talk about Single and SingleOrDefault method and difference between these methods. In this post we are going to explore two more extension methods First and FirstOrDefault.


You can find some other useful topics and posts here. Below is a chart explaining about First() and FirstOrDefault(). You can easily differentiate these methods from this chart. I have also given examples of each method.

Monday, August 12, 2013

LINQ- Difference between Single and SingleOrDefault- Single vs SingleOrDefault

In today's development, we all are frequently users of LINQ. So In this post and some incoming posts, I will try to explain about some LINQ's extension methods that seems trivial, but can really helpful to improve your code by making it easier.

Here, In this post I am going to explain you about Single and SingleOrDefault method and difference between these methods.

You can find some other useful topics and posts here. Below is a chart explaining about Single() and SingleOrDefault(). You can easily differentiate these methods from this chart. I have also given examples of each method.

Tuesday, August 6, 2013

SQL Server- User Defined Function to Parse HTML- Strip HTML -Without Using Regular Expression

This is a simple tip post. In this post I will show you a user defined function in SQL Server which parse the HTML and retrieve the Text only from it.

In previous posts, I explained Case Sensitive Search in SQL Server, Check Primary Key Existence in Table, Reset Identity Column in SQL Server, Insert Values into Identity column, Identity Column in SQL Server , STUFF Function, LEN Function, UNICODE Function, LEFT Function, CHARINDEX Function, Simple script to backup all SQL Server databases, Table-Valued Parameters and some other articles related to SQL ServerASP.Net, C#.

Following UDF takes the HTML as input and returns Text only from it. Please note you need to replace all the single quotes (if any) with two single quote (not double quote) in HTML before passing it as input to function.

Tuesday, July 23, 2013

How To- Send DataGridView Data in Email in Window Form Application

In my one post I explained you how to Send Grdiview Data in Email. Here I am going to show you how to send DataGridview content in E-mail in window application.

You can also find my other articles related to C#ASP.Net jQuery, Java Script and SQL Server.

First take a look on the below image.
DataGridView with Data

Saturday, June 22, 2013

How To- Bind Data to Gridview using jQuery in ASP.Net

In this post, I am explaining how to bind data to Gridview using jQuery in ASP.Net through Ajax call.

In previous posts, I explained Page Scroll to Top with jQuery, Automatically Refresh Page Using Java Script , How to Create a Textarea Character Counter, Animated Sliding Recent Post Widget For Blogger, Change Input to Upper Case using Java Script, Calculate Age from Date of Birth Using Java Script, jQuery .toggleClass() example and some other articles related to C#ASP.Net jQuery, Java Script and SQL Server.

ASPX Page

Gridview Markup
<asp:GridView ID="grdDemo" runat="server" AutoGenerateColumns="False" Font-Names="Arial"
    Font-Size="10pt" HeaderStyle-BackColor="GrayText" HeaderStyle-ForeColor="White" Width="500px">
    <Columns>
        <asp:BoundField DataField="ID" HeaderText="ID" />
        <asp:BoundField DataField="FName" HeaderText="First Name"/>
        <asp:BoundField DataField="LName" HeaderText="Last Name"/>
        <asp:BoundField DataField="Email" HeaderText="E-mail"/>
    </Columns>
</asp:GridView>

Monday, June 3, 2013

How To- Import Gmail Contacts in ASP.Net

In this post, I am explaining how can you import the Gmail contacts in your ASP.Net application. For importing Gmail contacts we need some dlls which you can get after download Google Data API and install on your system.

In my previous posts, I explained Export Gridview to PDF in ASP.Net with Image, Send mail in ASP.Net, Convert DataTable into List, Constructor Chainning in C#, Convert a Generic List to a Datatable, Get Property Names using Reflection in C#Hard drive information using C#Create Directory/Folder using C#Check Internet Connection using C#SQL Server Database BackUp using C# and some other articles related to C#ASP.Net jQuery, Java Script and SQL Server.

Create a new web application and add the reference of following dlls in your application.

Monday, May 27, 2013

How To- Export Gridview to PDF in ASP.Net with Image

In one of my previous articles I explained Export Gridview to PDF in ASP.Net . Here, I am explaining how to export Gridview to PDF which has images and pictures in it.

In my previous posts, I explained Send mail in ASP.Net, Convert DataTable into List, Constructor Chainning in C#, Convert a Generic List to a Datatable, Get Property Names using Reflection in C#Hard drive information using C#Create Directory/Folder using C#Check Internet Connection using C#SQL Server Database BackUp using C# and some other articles related to C#ASP.Net jQuery, Java Script and SQL Server.

Exporting Gridview to PDF


For exporting the data, I am using the iTextSharp (third party dll) in this post. Download the iTextSharp .
I have following Table which contains the Image Information like Image Name and Image Path.
Export Gridview to PDF in ASP.Net with Image
For exporting images into PDF we need to convert the ImagePath shown in table into its absolute URl. For example, In the above image-

Friday, May 24, 2013

How To- Get Query String Value using Java Script

Query String Value using Java Script
In web application development, we all are well aware of Query String and Its uses. We can easily retrieve the Query String values from URL on server-side, but sometimes we need to find the Query String values from URL on client-side i.e using Java Script. But in Java Script, there is no standard way or function to get the Query String values from URL. So here I am explaining how can you get the Query String values from URL using Java Script.

In previous posts, I explained Page Scroll to Top with jQuery, Automatically Refresh Page Using Java Script , How to Create a Textarea Character Counter, Animated Sliding Recent Post Widget For Blogger, Change Input to Upper Case using Java Script, Calculate Age from Date of Birth Using Java Script, jQuery .toggleClass() example and some other articles related to jQuery, Java Script etc.

The following Java Script code snippet facilitates you to retrieve the query string key value. You can also pass the default value if the key value is not find. Here is the function-

Tuesday, May 21, 2013

Thursday, May 16, 2013

ASP.Net- Create Hindi TextBox Using Google Transliteration in ASP.Net

Hindi Textbox in ASp.Net
Here, I am explaining you how to create a hindi textbox in  ASP.Net using  Google Transliteration.Here I am mainly targeting english to hindi transliteration. You can use any language which is supported by Google.

In my previous posts, I explained Send mail in ASP.Net, Convert DataTable into List, Constructor Chainning in C#, Convert a Generic List to a Datatable, Get Property Names using Reflection in C#Hard drive information using C#Create Directory/Folder using C#Check Internet Connection using C#SQL Server Database BackUp using C# and some other articles related to C#ASP.Net jQuery, Java Script and SQL Server.

To create a Hindi textbox in  ASP.Net using Google Transliteration, you have to add the following script source into your ASPX page.

Thursday, May 2, 2013

SQL Server- Case Sensitive Search in SQL Server

Case Sensitive Search in SQL Server
Today I was working on text search functionality in my application. It was not a very big deal until I had not a requirement for Case Sensitive search functionality. This was new thing (at least for me). I Googled it and find number of search results with same solution. So here I am just adding one more search result for Google.

In previous posts, I explained Check Primary Key Existence in Table, Reset Identity Column in SQL Server, Insert Values into Identity column, Identity Column in SQL Server , STUFF Function, LEN Function, UNICODE Function, LEFT Function, CHARINDEX Function, Simple script to backup all SQL Server databases, Table-Valued Parameters and some other articles related to SQL ServerASP.Net, C#.

In  SQL Server ,  Installation by default are case insensitive .This means that SQL Server ignores the case of the characters and treats the string 'Dot Net World' equal to the string 'dot net world'.

If You Enjoyed This Post Please Take 5 Seconds To Share It.

^ Scroll to Top hgpromo