- #CHECK SQL SERVER CLIENT CONNECTION IN DATABASE UPDATE#
- #CHECK SQL SERVER CLIENT CONNECTION IN DATABASE CODE#
- #CHECK SQL SERVER CLIENT CONNECTION IN DATABASE PASSWORD#
- #CHECK SQL SERVER CLIENT CONNECTION IN DATABASE WINDOWS#
This example shows the syntax for an external configuration file. Do not include any additional elements, sections, or attributes. You can also create a connection string in another file like XML, to store connection strings in an external configuration file, create a separate file that contains only the connectionStrings section. Once executing above code, you will see output as below
StrBuilder.Clear() // clear all the string create a new SQL Query using StringBuilder
#CHECK SQL SERVER CLIENT CONNECTION IN DATABASE CODE#
Int rowsAffected = command.ExecuteNonQuery() //execute query and get updated row countĬonsole.WriteLine(rowsAffected + " row(s) updated") Īfter executing above code, you will see updated Student_details table, output will be as shown below:Ĭomplete C# Code for adding/updating and connecting to database looks like below using System Using (SqlCommand command = new SqlCommand(sqlQuery, conn)) StrBuilder.Append("UPDATE Student_details SET Email = WHERE Name = 'Surendra'")
#CHECK SQL SERVER CLIENT CONNECTION IN DATABASE UPDATE#
add Query to update to Student_Details table strBuilder.Clear() // clear all the string Similarly, to Update the values in database you can build SQL Query and execute it. Once the command is executed, your database table will addded 2 rows and table looks like this In the above code, we are creating a SQL Query using StringBuilder object and then passing the SQL Query to SqlCommand instace and execute it. You will need to add namespace " System.Text" for using StringBuilder. Using (SqlCommand command = new SqlCommand(sqlQuery, conn)) //pass SQL query created above and connectionĬommand.ExecuteNonQuery() //execute the Query StrBuilder.Append("(N'Ronak', N'Class X') ") StrBuilder.Append("(N'Harsh', N'Class X'), ") StrBuilder.Append("INSERT INTO Student_details (Name, Email, Class) VALUES ") StringBuilder strBuilder = new StringBuilder() We need to pass "Name, Email, Class" column values, so we will have C# code as below //create a new SQL Query using StringBuilder Suppose this is our sample database(Students) -> Student_details table data, before inserting valuesĪs you can see from above table, "Id" is Primary Key column and "Identity" is set to true, so we don't need to pass it's value as it will be incremented atuomatically. Once you are connected to database in C# using Console Application, you can also insert new values in database, by creating query as a string and then executing it. ") Ĭonsole.WriteLine("Connection successful!") Ĭonsole.WriteLine("Error: " + e.Message) Ĭonnection successful! Add New Values In Database Table using C# SqlConnection conn = new SqlConnection(connString) Ĭonsole.WriteLine("Openning Connection. create instanace of database connection
#CHECK SQL SERVER CLIENT CONNECTION IN DATABASE PASSWORD#
+ database + " Persist Security Info=True User ID=" + username + " Password=" + password String connString = Source=" + datasource + " Initial Catalog=" Var username = "sa" //username of server to connect Var database = "Students" //your database name Here is the console application example to connect to local database and open the connection using System Ĭonsole.WriteLine("Getting Connection. Once the Database activities is over, Connection should be closed and release the Data Source resources When the connection is established, SQL Commands will execute with the help of the Connection Object and retrieve or manipulate the data in the database. If you have a named instance of SQL Server, you'll need to add that as well. Initial Catalog=DatabaseName User ID=UserName Password=Password" Here is the sample SQL server connection string should look like connetionString="Data Source=ServerName The SqlConnection instance takes Connection String as argument and pass the value to the Constructor statement. The SqlConnection Object is used to handle the part of physical communication between the C# application and the SQL Server Database.Īn instance of the SqlConnection class in C# has supported the Data Provider for SQL Server Database. Now to connect to SQL Server, we need to create an instance of SQLConnection and pass a connection string to it. Once the Console Application template is generated by Visual Studio, Navigate to Program.cs from Solution Explorer ( You can open it by Clicking "View"-> "Solution Explorer").
#CHECK SQL SERVER CLIENT CONNECTION IN DATABASE WINDOWS#
In this article, I will provide your working example to create a database connection in C# using console application example or you can say an example, to connect to SQL Server using C#, you can use same C# code in Console application or Windows or ASP.NET Web-Form/MVC, we are using Console application example in this post.įirst of all, open your Visual Studio and navigate to File->New->Project -> Select "Windows" from left pane and select "Console app" from the right pane, provide a name to your project and click "OK"
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