How to safely update database using powershell syntax? - sql-server

Question

I have a PowerShell script which runs safely up to the point of an update. I connect to the database and can read from it, however, I have trouble updating.
Here is a copy of the error message I receive:
"Exception calling "ExecuteNonQuery" with "0" argument(s): "There is already an open DataReader associated with this Command which must be closed first."
At C:\xxx\xxx\ToolsController.ps1:37 char:5
+ $InnerCommand.ExecuteNonQuery()
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : InvalidOperationException"
FYI: I posted this before and this is an update to the previous question.
Any help at all would be greatly appreciated.
I have tried attaching the variable at the end of the string i.e '..+$varibale'
also tried #" "# and I have gotten the same result.
$Global:Server = "server"
$Global:Database = "db"
$Global:u = "un"
$Global:p = "pw"
[string]$Query = "SELECT * FROM [dbo].[jobs] WHERE [Run] = 0"
try{
$ConnectionString = "server=$Server;Integrated Security=true;database=$Database;user id=$u;password=$p"
$Connection = New-Object System.Data.SqlClient.SqlConnection
$Connection.ConnectionString = $ConnectionString
$Connection.Open()
}
catch{
"Failed to connect SQL Server"
}
$Command = $Connection.CreateCommand()
$InnerCommand = $Connection.CreateCommand()
$Command.CommandText = $Query
$jobs = $Command.ExecuteReader()
while ($jobs.Read()){
switch($jobs["Script"]){
15
{
$traverse = $jobs["Frequency"] - 1
While ($traverse -ge 0) {
c:\xx\xx\batch $jobs["Date"]
$traverse--
}
"Updating Database...."
$Query2 = "UPDATE [dbo].jobs SET [Run] = 1 WHERE [ID] = $jobs['ID']" <------Error here.
$InnerCommand.CommandText = $Query2
$InnerCommand.ExecuteNonQuery()
"Updating Completed!"
}
}
}
$Connection.Close()
$Connection.Dispose()
Write-Host "Connection Closed"

Answer 1

Add MultipleActiveResultSets=True to the connection string. This will allow interleaving of UPDATE statements while reading from the data reader.