Database Testing with CodedUI

Lets discuss about the Database Testing with CodedUI (C#) with some sample code

Connection String plays a key role in connecting to the database
Which has a different format for different Databases like Oracle,SQL etc

//Below code will login and open the DB connection.

string connetionString = “Data Source=DBSeverName;Initial Catalog=DBName;User ID=UserName;Password=DBPassword”;
SqlConnection connection = new SqlConnection(connetionString);
connection.Open();

Once the DB connection is setup, we need to define a sql Command for executing and Sql Datareader for reading the results of the command
Once the results are read by the data reader, it is loaded into a DataTable

//Below code will help to execute the Select query.
String Selectquery = “Select FirstName from Emp where EmpID in (01)”;
SqlCommand command = new SqlCommand(Selectquery, connection);
SqlDataReader reader = command.ExecuteReader();
DataTable dataTable = new DataTable();
dataTable.Load(reader);

Once the data is loaded into the datatable, all we need to do is verify with the expected output

//Below code will help to verify the data which above code fetch from the particular table.
String rowText;
rowText = DB.dataTable.Rows[0][DB.dataTable.Columns[0]].ToString();
if (rowText.Contains(“Mayank”))
{
      Console.WriteLine(“FirstName is macthing with expected result”);
}
else
{
      Console.WriteLine(“Verification is not passed”);
}

After the verification, Close the connection

//It will close the connection.

connection.Close();