Added get-dbadatabasesize

Author: SQLDBAWithABeard

Get-DBADatabaseSize.ps1

@@ -0,0 +1,42 @@
+function Get-DBADatabaseSize
+{
+<#
+.Synopsis
+   Gets the size of the databases on an instance in Mb
+.DESCRIPTION
+   returns a database smo object of the size of the databases on an instance in Mb and enables top N if required
+.EXAMPLE
+   Get-DBADatabaseSize -Instance SERVER
+
+   Returns the database names and sizes in Mb ordered by size for all of the databases on SERVER
+.EXAMPLE
+   Get-DBADatabaseSize -Instance SERVER -Top 3
+
+   Returns the database names and sizes in Mb ordered by size for the 3 largest databases on SERVER
+.OUTPUTS
+   Database object
+.NOTES
+   AUTHOR - Rob Sewell https://sqldbawithabeard.com
+   DATE - 30/10/2016
+#>
+#Requires -Version 5
+    [OutputType([object])]
+    param(
+    ## The Name of the instance
+    [Parameter(Position=0,Mandatory=$true)]
+    [string]$Instance,
+    [Parameter(Position=1,Mandatory=$false)]
+    ## The number of results to show
+    [int]$Top
+    )
+    [void][reflection.assembly]::LoadWithPartialName( "Microsoft.SqlServer.Smo" );
+    $srv = New-Object -TypeName Microsoft.SqlServer.Management.Smo.Server -ArgumentList $Instance
+    if(!$Top)
+    {
+        $srv.databases | Sort-Object -Descending size|Select-Object Name , Size
+    }
+    else
+    {
+        $srv.databases | Sort-Object -Descending size|Select-Object Name , Size -First $Top
+    }
+}