how to check dataset is null or empty in asp.net | Check dataset contains a data or not

Introduction:

Here I will explain how to check a dataset contains data or dataset is null or empty in asp.net.

Description:

In previous posts I explained many articles relating code snippets in asp.net. Now I will explain how to check if dataset contains any data or dataset is null or empty in asp.net.

If we want to check dataset contains data or not for that we need to write code as shown below

How to send mail with multiple attachments in asp.net

Introduction: 

In this article I will explain how to send mail with multiple attachments in asp.net.

Description:

In previous post I explained how to send mail with attachment in asp.net. Now I will explain how to send mail with multiple attachments in asp.net. During work with one of the application I got requirement like send mail with multiple attachments in asp.net actually we can implement this concept very easily just by adding few lines of code to how to send mail with attachment in asp.net.

Query to return default value if column contains null value in SQL Server

Introduction:

Here I will explain how to write a query to return default value if column contains null value in SQL Server.

Description:

In previous articles I explained how to delete null or empty values from datatable in SQL Server and many articles relating to SQL Server. Now I will explain how to write a query to return default if column contains null value in SQL Server. For that first design one table (UserInfo) in database and enter data like as shown below

Get output parameter from stored procedure in asp.net

Introduction: 

In this article I will explain how to get output parameters returns by stored procedure in asp.net.

Description:

In previous posts I explained many articles relating asp.net, gridview, JQuery, SQL Server etc. Now I will explain how to get output parameters return by stored procedure in asp.net. First we will see how to write a stored procedure to return output parameters for that check this post write stored procedure to return output parameters in SQL Server. Once stored procedure designed in database write the following code in code behind to get output parameters returns by stored procedure in asp.net.

Query to delete null or empty values from datatable in sql server

Introduction:

Here I will explain how to write a query to delete null or empty values from datatable in SQL Server.

Description:

In previous articles I explained many articles relating to SQL Server. Now I will explain how to write a query to delete null or empty values from datatable in SQL Server. For that first design one table (UserInfo) in database and enter data like as shown below

Query to convert lowercase to uppercase characters in SQL Server

Introduction:

In this article I will explain how to write a query to convert or change lowercase to uppercase or uppercase to lowercase characters in SQL server.

Description:

In previous post I explained how to alter or modify or delete or change already existing column in datatable in SQL Server and many articles relating to SQL Server. Now I will explain how to convert or change lowercase to uppercase or lowercase to uppercase characters in SQL Server. Here I will explain with one example for that I have one table UserDetails like as shown below

Query to change the datatype of column in sql server

Introduction:

In this article I will explain how to change or rename datatype of column in SQL server.

Description:

In previous post I explained how to alter or modify or delete or change already existing column in datatable in SQL Server and many articles relating to SQL Server. Now I will explain how to rename or change datatype of column name or table name in SQL Server.

Syntax to modify existing column datatype in table

If we want to modify existing column datatype from data table that syntax will be like this

Add datatable data with comma separated values in string

Introduction:

Here I will explain how to add or bind datatable column data with comma separated values in asp.net.

Description:

In previous article I explained about self join in SQL server, Joins in SQL Server and many more articles relating to SQL Server. Now I will explain how to add datatable data with comma separated values in asp.net.

self join query in sql server | self join example in sql server

Introduction:

Here I will explain how to write self join query in SQL server and self join example in SQL server.

Description:

In previous article I explained about Joins in SQL Server and many more articles relating to SQL Server. Now I will explain about self join in SQL Server.

Self Join

Joining the table itself called self join. Self join is used to retrieve the records having some relation or similarity with other records in the same table. Here we need to use aliases for the same table to set a self join between single table and retrieve records satisfying the condition in where clause.

Alter query to add column with default value in SQL Server

Introduction:

In this article I will explain how to write Query to add new column with default value to existing datatable in SQL server.

Description:

In previous post I explained how to alter or add new column in datatable using SQL Server. Now I will explain how to write query to add new column with default value to existing datatable in SQL Server. During work with one application I got requirement like alter existing table structure to add new column with default value 0(zero). If we want to add new column with some default value to existing table we need to write the query in a format as shown below