internal/Update-SqlDbReadOnly.ps1

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Function Update-SqlDbReadOnly
{
<#
.SYNOPSIS
Internal function. Updates specified database to read-only or read-write. Necessary because SMO doesn't appear to support NO_WAIT.
#>

[CmdletBinding()]
param (
[Parameter(Mandatory = $true)]
[ValidateNotNullOrEmpty()]
[Alias("ServerInstance", "SqlInstance")]
[object]$SqlServer,
[Parameter(Mandatory = $true)]
[ValidateNotNullOrEmpty()]
[string]$dbname,
[Parameter(Mandatory = $true)]
[ValidateNotNullOrEmpty()]
[bool]$readonly
)

if ($readonly)
{
$sql = "ALTER DATABASE [$dbname] SET READ_ONLY WITH NO_WAIT"
}
else
{
$sql = "ALTER DATABASE [$dbname] SET READ_WRITE WITH NO_WAIT"
}

try
{
$server = Connect-SqlServer -SqlServer $SqlServer -SqlCredential $SqlCredential
$null = $server.ConnectionContext.ExecuteNonQuery($sql)
Write-Output "Changed ReadOnly status to $readonly for $dbname on $($server.name)"
return $true
}
catch
{
Write-Error "Could not change readonly status for $dbname on $($server.name)"
return $false
}
}