You can use the System.Data.SqlClient reference to make a connection to the database (using SqlConnection), execute the SQL statement (using SqlCommand) and print the results to a text file (using SqlDataReader).
Please see example below that executes a SQL statement on a SQL Server database and writes the results to a text file (C:\MyQuery.txt) using a Silk Test Workbench .net script:-
Imports System.Data.SqlClient
Imports System.Data
Imports System.IO
Public Module Main
Dim myConnectDB As System.Data.SqlClient.SqlConnection
Dim myConnectStr As String
Dim mySQLCommand As System.Data.SqlClient.SqlCommand
Dim myReader As System.Data.SqlClient.SqlDataReader
Public Sub Main()
'Connection to my SQL Server database
myConnectStr = "Server=<HOSTNAME\INSTANCE>;Database=<DBNAME>;User Id=<USER>;Password=<PASSWORD>;"
myConnectDB = New System.Data.SqlClient.SqlConnection(myConnectStr)
myConnectDB.Open()
' SQL Select statement to read data from the desired table
mySQLCommand = New System.Data.SqlClient.SqlCommand("Select * FROM STW_USERS;",myConnectDB)
Dim myReader As SqlDataReader = mySQLCommand.ExecuteReader()
Dim fileName As String = "C:\MyQuery.txt"
'create a stream object which can write text to a file
Dim outputStream As StreamWriter = New StreamWriter(fileName)
Do While myReader.Read
Dim values(myReader.FieldCount - 1) As Object
'get all the field values
myReader.GetValues(values)
'write the text of each value to a comma seperated string
Dim line As String = String.Join(",", values)
outputStream.WriteLine(line)
Loop
myReader.Close()
outputStream.Close()
myConnectDB.Close()
End Sub
End Module
