Represents an open connection to SQL Server.
The following example creates a
SqlCommand and a
SqlConnection. The
SqlConnection is opened and set as the
Connection property. The example then calls
ExecuteNonQuery method, and closes the connection. To accomplish this, the
ExecuteNonQuery is passed a connection string and a query string that is SQL INSERT statement.
public void InsertRow(string myConnectionString)
{
// If the connection string is empty, use default.
if(myConnectionString == "")
{
myConnectionString =
"User Id=sa;Server=localhost;Initial Catalog=Test;";
}
SqlConnection myConn = new SqlConnection(myConnectionString);
string myInsertQuery = "INSERT INTO DEPT VALUES (50,'Development','Philadelphia')";
SqlCommand myCommand = new SqlCommand(myInsertQuery);
myCommand.Connection = myConn;
myConn.Open();
try
{
myCommand.ExecuteNonQuery();
}
finally
{
myConn.Close();
}
}
Public Sub InsertRow(myConnectionString As String)
' If the connection string is empty, use default.
If myConnectionString = "" Then
myConnectionString = _
"User Id=sa;Server=localhost;Initial Catalog=Test;"
End If
Dim myConn As New SqlConnection(myConnectionString)
Dim myInsertQuery As String = "INSERT INTO DEPT VALUES (50,'Development','Philadelphia')"
Dim myCommand As New SqlCommand(myInsertQuery)
myCommand.Connection = myConn
myConn.Open()
Try
myCommand.ExecuteNonQuery()
Finally
myConn.Close()
End Try
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2