Tag Archives: powershell

Powershell Mysql helper functions

Some Powershell functions for Preparing Mysql Statements and executing them.

Requires the MySQL .NET Connector

$Dbserv = "server"
$Dbname = "db"
$Dbuser = "user"
$Dbpass = "pass"

#MySQL Database connection
[System.Reflection.Assembly]::LoadWithPartialName("MySql.Data") | Out-Null
$SQLConnection = New-Object MySql.Data.MySqlClient.MySqlConnection
$SQLConnection.ConnectionString = "server=$Dbserv;port=3306;uid=$Dbuser;pwd=$Dbpass;database=$Dbname;Integrated Security=False"

function MySQLprepare {
	[OutputType([MySql.Data.MySqlClient.MySqlCommand])]
	param (
		# Query
		[Parameter(
			Mandatory = $true
		)]
		[String]
		$query,

		# Connection
		[Parameter(
			Mandatory = $true,
			ValueFromPipeline = $true)
		]
		[MySql.Data.MySqlClient.MySqlConnection]
		$connection
	)

	$command = New-Object MySql.Data.MySqlClient.MySqlCommand
	$command.Connection = $connection
	$command.CommandText = $query

	(Select-String "@\w+" -input $query -AllMatches).Matches.Value | ForEach-Object {
		if ($_) { $command.Parameters.AddWithValue($_, "") }
	} | Out-Null

	$command.Prepare()

	return , $command
}

function MySQLexec {
	[OutputType([Int])]
	param (
		# QueryParams
		[Parameter(
			Mandatory = $false
		)]
		[hashtable]
		$queryParams = @{},

		# Command
		[Parameter(
			Mandatory = $true,
			ValueFromPipeline = $true
		)]
		[MySql.Data.MySqlClient.MySqlCommand]
		$command
	)

	(Select-String "@\w+" -input $command.CommandText -AllMatches).Matches.Value | ForEach-Object {
		if ($_) { $command.Parameters[$_].Value = $queryParams[$_] }
	} | Out-Null

	$affectedRows = $command.ExecuteNonQuery()

	return $affectedRows
}

function MySQLquery {
	[OutputType([System.Data.DataTable])]
	param (
		# QueryParams
		[Parameter(
			Mandatory = $false
		)]
		[hashtable]
		$queryParams = @{},

		# Command
		[Parameter(
			Mandatory = $true,
			ValueFromPipeline = $true
		)]
		[MySql.Data.MySqlClient.MySqlCommand]
		$command
	)

	(Select-String "@\w+" -input $command.CommandText -AllMatches).Matches.Value | ForEach-Object {
		if ($_) { $command.Parameters[$_].Value = $queryParams[$_] }
	} | Out-Null

	$dataAdapter = New-Object MySql.Data.MySqlClient.MySqlDataAdapter($command)
	$dataSet = New-Object System.Data.DataSet
	$dataAdapter.Fill($dataSet, "data") | Out-Null
	return , $dataSet.Tables["data"]
}

Examples

Preparing some statements

$insertVM = $SQLConnection | MySQLprepare -query "INSERT INTO virtual_machines ( id, name, description, status ) VALUES ( @id, @name, @description, 'new' );"
$selectVMs = $SQLConnection | MySQLprepare -query "SELECT * FROM virtual_machines WHERE status LIKE @status;"
$updateVM = $SQLConnection | MySQLprepare -query "UPDATE virtual_machines SET status = @status WHERE id = @id;"

Executing them

$insertVM | MySQLexec -queryParams @{"@id" = 1; "@name" = 'test'; "@description" = 'example vm'} | Out-Null

$dtVMs = $selectVMs | MySQLquery -queryParams @{"@status" = 'new'}
foreach ($vm in $dtVMs.Rows) {
	Write-Host "Working on VM" $vm["id"] -ForegroundColor Cyan

	$updateVM | MySQLexec -queryParams @{"@id" = $vm["id"]; "@status" = 'ready'} | Out-Null
}

RDP – Configuring License server manually

There might be situation when you want to configure License server on the RD Session Host or on the RD Virtualization Host manually since you do not have any RD Connection Broker in your environment. You have already configured RD Session Host server or Virtualization Host Server as required and now you want to configure the License server which is already installed and configured with licenses. All you are left to do is configure the License Server and the Licensing mode on the corresponding RD session Host or Virtualization Host servers.

Note: The following commands must be ran from an Administrative PowerShell prompt.

To configure the license server on RDSH/RDVH:

$obj = gwmi -namespace "Root/CIMV2/TerminalServices" Win32_TerminalServiceSetting
$obj.SetSpecifiedLicenseServerList("License.contoso.com")

Note: “License” is the name of the License Server in the environment

To verify the license server configuration on RDSH/RDVH:

$obj = gwmi -namespace "Root/CIMV2/TerminalServices" Win32_TerminalServiceSetting
$obj.GetSpecifiedLicenseServerList().SpecifiedLSList

To change the licensing mode on RDSH/RDVH:

$obj = gwmi -namespace "Root/CIMV2/TerminalServices" Win32_TerminalServiceSetting
$obj.ChangeMode(value) - Value can be 2 - per Device, 4 - Per user

To validate the licensing mode on RDSH/RDVH:

$obj = gwmi -namespace "Root/CIMV2/TerminalServices" Win32_TerminalServiceSetting
$obj.LicensingType
$obj.LicensingName