Powershell. Запросы к MySQL

function Invoke-MySQLQuery {
    Param(
        [Parameter(
            Mandatory = $true,
            ParameterSetName = '',
            ValueFromPipeline = $true)]
            [string]$query,
        [Parameter(
            Mandatory = $true,
            ParameterSetName = '',
            ValueFromPipeline = $true)]
            [string]$connectionString
        )

        try {
            # load MySQL driver and create connection
            Write-Verbose "Create Database Connection"
            # You could also could use a direct Link to the DLL File
            $mySQLDataDLL = "C:\ProgramData\icinga2\Scripts\icinga2\MySQL.Data.dll"
            [void][system.reflection.Assembly]::LoadFrom($mySQLDataDLL)
            #[void][System.Reflection.Assembly]::LoadWithPartialName("MySql.Data")
            $connection = New-Object MySql.Data.MySqlClient.MySqlConnection
            $connection.ConnectionString = $ConnectionString
            Write-Verbose "Open Database Connection"
            $connection.Open()

            # Run MySQL Querys
            Write-Verbose "Run MySQL Querys"
            $command = New-Object MySql.Data.MySqlClient.MySqlCommand($query, $connection)
            $dataAdapter = New-Object MySql.Data.MySqlClient.MySqlDataAdapter($command)
            $dataSet = New-Object System.Data.DataSet
            $recordCount = $dataAdapter.Fill($dataSet, "data")
            $dataSet.Tables["data"] # | Format-Table
        }
        catch {
            Write-Host "Could not run MySQL Query" $Error[0]
        }
        Finally {
            Write-Verbose "Close Connection"
            $connection.Close()
        }

} #Конец функции Invoke-MySQLQuery

$connString = "Server=192.168.0.209;Uid=dbuser;Pwd=password;database=inventory;charset=utf8"
$ComputerUUID = "00000000-0000-0000-0000-000000000000-00000000-0000-0000-0000-000000000000"
$sQLquery = "SELECT Name, ComputerTargetId FROM tbComputerTarget WHERE ComputerTargetId='$ComputerUUID'"


$rQLquery = Invoke-MySQLQuery -connectionString $connString -query $sQLquery

PS C:\Scripts> .\sync_osticket_db.ps1 "pc030.domain.local"
Could not run MySQL Query Исключение при вызове "Open" с "0" аргументами: "SELECT command denied to user 'dbuser'@'host' for table 'session_variables'"

GRANT SELECT ON performance_schema.session_variables TO dbuser; GRANT SELECT ON performance_schema.session_status TO dbuser;