$userName ='rene'
$password ='verySecret'
$pw = convertTo-secureString -string $password -asPlainText -force
$cred = new-object -typeName System.Management.Automation.PSCredential -argumentList $adminlogin, $pw
new-azSqlServer -resourceGroupName 'tq84ResGrp' `
-serverName 'tq84Srv' `
-location 'WestEurope' `
-sqlAdministratorCredentials $cred