Mastering C# Database Programming : Connect To Database | AppConfig | Save TextBox Values to DB

Mastering C# Database Programming
Accessing Data from a database is one of the important aspects of any programming language. It is an absolute necessity for any programming language to have the ability to work with databases. C# is no different.
It can work with different types of databases. It can work with the most common databases such as Oracle and Microsoft SQL Server.

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It also can work with new forms of databases such as MongoDB and MySQL.
Connection – To work with the data in a database, the first obvious step is the connection. The connection to a database normally consists of the below-mentioned parameters.
Database name or Data Source – The first important parameter is the database name to which the connection needs to be established. Each connection can only work with one database at a time.
Credentials – The next important aspect is the username and password which needs to be used to establish a connection to the database. It ensures that the username and password have the necessary privileges to connect to the database.
Optional parameters – For each database type, you can specify optional parameters to provide more information on how .net should handle the connection to the database. For example, one can specify a parameter for how long the connection should stay active. If no operation is performed for a specific period of time, then the parameter would determine if the connection has to be closed.
Selecting data from the database – Once the connection has been established, the next important aspect is to fetch the data from the database. C# can execute ‘SQL’ select command against the database. The ‘SQL’ statement can be used to fetch data from a specific table in the database.
Inserting data into the database – C# can also be used to insert records into the database. Values can be specified in C# for each row that needs to be inserted into the database.
Updating data into the database – C# can also be used to update existing records into the database. New values can be specified in C# for each row that needs to be updated into the database.
Deleting data from a database – C# can also be used to delete records into the database. Select commands to specify which rows need to be deleted can be specified in C#.
Ok, now that we have seen the theory of each operation, let’s jump into the further sections to look at how we can perform database operations in C#.

SQL Command in c#
SqlCommand in C# allow the user to query and send the commands to the database. SQL command is specified by the SQL connection object. Two methods are used, ExecuteReader method for results of query and ExecuteNonQuery for insert, Update, and delete commands. It is the method that is best for the different commands.

How to connect C# to Database
Let’s now look at the code, which needs to be kept in place to create a connection to a database. In our example, we will connect to a database which has the name of Demodb.

In this C# sql connection tutorial, you will learn-

Fundamentals of Database connectivity
How to connect C# to Database
Access data with the SqlDataReader
C# Insert Into Database
Updating Records
Deleting Records
Connecting Controls to Data
C# DataGridView
Fundamentals of Database connectivity
C# and .Net can work with a majority of databases, the most common being Oracle and Microsoft SQL Server. But with every database, the logic behind working with all of them is mostly the same.

In our examples, we will look at working the Microsoft SQL Server as our database. For learning purposes, one can download and use the Microsoft SQL Server Express Edition, which is a free database software provided by Microsoft.

[programmingguruThecoderboy]

Ha Guy Welcome Mastering C# Database Programming Series which will cover all the
Control Visual Studio windows form have and we will enter it values into DB Sql server 2109
So keep watching and Keep learning and please Do Subscribe comment and share Thank you!

[backofficecyberclouds]

awesome Sql server and csharp tutorial

[codewithmik]

well explained and to the point tutorial keep it up

[willychirino]

Hello! How do I solve this error when I click on the save button: 'Error relacionado con la red o específico de la instancia mientras se establecía una conexión con el servidor SQL Server. No se encontró el servidor o éste no estaba accesible. Compruebe que el nombre de la instancia es correcto y que SQL Server está configurado para admitir conexiones remotas. (provider: SQL Network Interfaces, error: 26 - Error al buscar el servidor o instancia especificado)'