1-AddDatabaseRole.ps1

<#
    .DESCRIPTION
        This example shows how to ensure that the database roles named ReportEditor
        and ReportViewer are present in the AdventureWorks database on instance
        sqltest.company.local\DSC.
#>

Configuration Example
{
    param
    (
        [Parameter(Mandatory = $true)]
        [System.Management.Automation.PSCredential]
        $SqlAdministratorCredential
    )

    Import-DscResource -ModuleName 'SqlServerDsc'

    node localhost
    {
        SqlDatabaseRole 'ReportEditor_AddRole'
        {
            ServerName           = 'sqltest.company.local'
            InstanceName         = 'DSC'
            DatabaseName         = 'AdventureWorks'
            Name                 = 'ReportEditor'
            Ensure               = 'Present'

            PsDscRunAsCredential = $SqlAdministratorCredential
        }

        SqlDatabaseRole 'ReportViewer_AddRole'
        {
            ServerName           = 'sqltest.company.local'
            InstanceName         = 'DSC'
            DatabaseName         = 'AdventureWorks'
            Name                 = 'ReportViewer'
            Ensure               = 'Present'

            PsDscRunAsCredential = $SqlAdministratorCredential
        }
    }
}