PostgreSQL Query export to CSV with PowerShell - powershell

Question

$sf = "\\\\domain\\dept\\dcgsi\\Extracts\\Tableau_Unlicensed_Users.csv"
if (Test-Path $sf){
Remove-Item $sf
}
$query = #"
\\copy (SELECT Name
FROM _users
WHERE licensing_role_name = 'Unlicensed')
TO $sf
WITH CSV DELIMITER ','
"#
$conn = New-Object -ComObject ADODB.Connection
# use existing 64 bit ODBC System DSN that we set up manually
$conn.Open('PostgreSQL30')
$conn.Execute($query)
$conn.Close()
I keep getting an error about "\" on the line with the $conn.Execute() when I try and do this. I assume it has to do with character escaping and maybe I am doing it wrong.
Is there a better way to do this with PowerShell if I just need to get the name field of any record from _users and output it to CSV?
Eventually I will be adding more to this to loop through each record in the CSV and execute a tabcmd to remove all the users that are unlicensed.

Answer 1

$sf = "\\domain\dept\dcgsi\Extracts\Tableau_Unlicensed_Users.csv"
if (Test-Path $sf){
Remove-Item $sf
}
$query = #"
SELECT Name
FROM _users
WHERE licensing_role_name = 'Unlicensed'
"#
function Get-ODBC-Data{
$conn = New-Object System.Data.Odbc.OdbcConnection
$conn.ConnectionString = "DSN=PostgreSQL30;"
$conn.Open()
$cmd = New-object System.Data.Odbc.OdbcCommand($query, $conn)
$ds = New-Object system.Data.DataSet
(New-Object System.Data.Odbc.OdbcDataAdapter($cmd)).Fill($ds) | Out-Null
$conn.Close()
$ds.Tables[0] | Export-Csv $sf
}
Get-ODBC-Data
This did like 99% of what I need; I just have to process the csv now and drop the first two lines. The first line is a type info message and the second is the column header.