Case Statement In Update Query - powershell

Question

This works in SQL Server, but anytime I try to run it in my powershell environment it gives me an error of incorrect syntax near d. What must I alter in order to have this run in powershell?
Function Run-Query
{
param([string[]]$queries)
$server='Server'
$dbname='Database'
$connStr='Server={0};Database={1};Integrated Security=SSPI;' -f $server,$dbname
For ($i = 0; $i -lt $queries.count; $i++)
{
$Command = New-Object System.Data.SqlClient.SqlCommand
$conn=New-Object System.Data.SqlClient.SQLConnection($connStr)
$conn.Open()
$Command.Connection = $conn
$Command.CommandText=$queries[$i]
$Command.ExecuteNonQuery()
$conn.Close()
}
}
$updatequery = "UPDATE d
SET [updatedate] = GETDate(),
[shipped] =
(
CASE WHEN NOT EXISTS(Select 1 *
from [server].[db].[dbo].[viewname] vw
WHERE vw.customername = d.customername)
THEN 'Yes'
ELSE
'PreviousCustomer'
END
)
FROM $fulllocation
WHERE ([shipped] IS NULL)
AND ([managerapproved] IS NOT NULL)
AND [readytoship] IN ('Go', 'Ready', 'Send')"
Run-Query -queries $updatequery

Answer 1

Define your query as a string literal like this:
$updatequery = #"
UPDATE d
SET [updatedate] = GETDate(),
[shipped] =
(
CASE WHEN NOT EXISTS(Select 1
from [server].[db].[dbo].[viewname] vw
WHERE vw.customername = d.customername)
THEN 'Yes'
ELSE
'PreviousCustomer'
END
)
FROM $fulllocation
WHERE ([shipped] IS NULL)
AND ([managerapproved] IS NOT NULL)
AND [readytoship] IN ('Go', 'Ready', 'Send')
"#