Query SQL DB

I want to query a SCCM DB to find out all the machines a user has logged into.   I have this working using SQL but I wanted to write this in PowerShell so I can run it without having to log into my SQL server or my SCCM server.  

#  This code works fine.  I'm using the Quest AD Plugins.  

$UserName = Read-Host 'Please enter the user name'
Get-QADUser -ANR $UserName | Select -ExpandProperty sAMAccountName

. 

-- This SQL code works as well.   It will show me every computer the user has logged on it.  

select
rs.Name0  AS [PC Name],
ru.User_Name0  AS [Logon Name],
Full_User_Name0 AS [Full Name]

from v_R_System rs 
LEFT JOIN v_R_User ru on rs.User_Name0 = ru.User_Name0

where ru.User_Name0 LIKE 'MrUserName'

.

But how do I query these exact same SQL Views using PowerShell?  

mqh7