sql distinct statement not working in powershel script - sql

Question

I am trying to run the following sql command on a powershell script:
I set the following as a variable:
$DBSUM = select x.[example 1], y.example2, z.example3
from (select count (distinct valueA) AS "example 1"
from dbo.table1
) as x,
(select count (distinct ValueB) AS "example2"
from dbo.table2
) as y,
(select count (distinct ValueC) AS "example3"
from dbo.table3
) as z
after some other commands, i have the following:
$SqlConnectionSUM = New-Object System.Data.SqlClient.SqlConnection
$SqlConnectionSUM.ConnectionString = "Server = $SQLServer; Database =
$SQLDB; Integrated Security = True"
$SqlCmdSUM = New-Object System.Data.SqlClient.SqlCommand
$SqlCmdSUM.CommandText = $DBSUM
$SqlCmdSUM.Connection = $SqlConnectionSUM
$SqlAdapterSUM = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapterSUM.SelectCommand = $SqlCmdSUM
$DataSetSUM = New-Object System.Data.DataSet
$null = $SqlAdapterSUM.Fill($DataSetSUM)
$DataSetSUM.Tables[0] | select * -ExcludeProperty RowError, RowState,
HasErrors, ItemArray,Table | ConvertTo-Html -Head $HtmlHead | Out-File
"$PSScriptRoot\filelocation\example.html"
The above command works perfectly in SQL, but when I run on my powershell I get the error:
+ ... .example3 from (select count (distinct ValueA) AS "example1 ...
+ ~~~~~~
Unexpected token 'example' in expression or statement.
+ CategoryInfo : ParserError: (:) [], ParseException
+ FullyQualifiedErrorId : UnexpectedToken
Please can anyone advise?
Thank you.

Answer 1

Thank you to Luuk and Astentx for your replies.
I have now working ok, the issue was the " and spaces on example 1
I replaced the spaces with _ and removed the " and t works absolutely fine.
Here is the result:
$DBSUM = select x.example_1, y.example2, z.example3
from (select count (distinct valueA) AS example_1
from dbo.table1
) as x,
(select count (distinct ValueB) AS example2
from dbo.table2
) as y,
(select count (distinct ValueC) AS example3
from dbo.table3
) as z
Thank you all.