Powershell SQL Query to variables - powershell

Question

Trying to use SQL results as variables. This will return the results to the host, but I would like to use each value as a variable.
$job = "22940"
$SQLServer = "my-sql" #use Server\Instance for named SQL instances!
$SQLDBName = "MyDatabase"
$SqlQuery = "DECLARE #Job VARCHAR(5);
SET #Job = '$job'
SELECT dbo.Job.Job, dbo.Job.Customer,
dbo.Job.Note_Text,
dbo.User_Values.Date1 AS 'Setup Date',
dbo.User_Values.Date2 AS 'Due Date'
FROM dbo.Job INNER JOIN
dbo.User_Values ON dbo.Job.User_Values = dbo.User_Values.User_Values
WHERE (dbo.Job.Job = #Job) AND (dbo.Job.User_Values = dbo.User_Values.User_Values)"
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server = $SQLServer; Database = $SQLDBName; Integrated Security = True"
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = $SqlQuery
$SqlCmd.Connection = $SqlConnection
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $SqlCmd
$DataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($DataSet)
$SqlConnection.Close()
clear
$DataSet.Tables[0]
How can I put each column into a variable that I can use for something else?

Answer 1

I work with data tables directly. You should also look into handling parameters correctly. It helps with handling special characters in the variable value. And, it protects from SQL Injection Attacks:
$Sql = 'select top 100 first_name, Last_name from person where last_name=#lastname'
$Database = 'XXX'
$Server = 'XXX'
$LastName = 'Jones'
$Connection = New-Object System.Data.SqlClient.SqlConnection
$Connection.ConnectionString = "Server=$Server;Database=$Database;Integrated Security=True"
$Connection.Open()
$cmd = new-object system.Data.SqlClient.SqlCommand($Sql, $Connection)
$null = $cmd.Parameters.AddWithValue('#lastname', $LastName)
$DataTable = New-Object System.Data.DataTable
$SqlDataReader = $cmd.ExecuteReader()
$DataTable.Load($SqlDataReader)
$Connection.Close()
$Connection = $null
$DataTable.Rows.Count
foreach ($r in $DataTable.Rows)
{
$fn = $r.first_name
$ln = $r.last_name
"$fn $ln"
}

Answer 2

Not sure if this is really the correct way but it does give me the results I am looking for. Looked through some of my notes on working with CSV files and I added the foreach at the end. The above comments from #notjustme and #jcoehoorn got me looking in the right direction. Thanks
$job = "22940"
$SQLServer = "my-sql" #use Server\Instance for named SQL instances!
$SQLDBName = "MyDatabase"
$SqlQuery = "DECLARE #Job VARCHAR(5);
SET #Job = '$job'
SELECT dbo.Job.Job, dbo.Job.Customer,
dbo.Job.Note_Text,
dbo.User_Values.Date1 AS 'Setup Date',
dbo.User_Values.Date2 AS 'Due Date'
FROM dbo.Job INNER JOIN
dbo.User_Values ON dbo.Job.User_Values = dbo.User_Values.User_Values
WHERE (dbo.Job.Job = #Job) AND (dbo.Job.User_Values = dbo.User_Values.User_Values)"
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server = $SQLServer; Database = $SQLDBName; Integrated Security = True"
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = $SqlQuery
$SqlCmd.Connection = $SqlConnection
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $SqlCmd
$DataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($DataSet)
$SqlConnection.Close()
clear
foreach($Job in $DataSet.Tables[0])
{
$MyJobNumber = $Job.Job
$MyCustomer = $Job.Customer
$MyNotes = $Job.Note_Text
$MySetupDate = $Job.Setup_Date
$MyDueDate = $Job.Due_Date
}