functions/Get-DbaDbPartitionScheme.ps1

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function Get-DbaDbPartitionScheme {
    <#
    .SYNOPSIS
        Gets database Partition Schemes
 
    .DESCRIPTION
        Gets database Partition Schemes
 
    .PARAMETER SqlInstance
        The target SQL Server instance or instances
 
    .PARAMETER SqlCredential
        Allows you to login to SQL Server using alternative credentials
 
    .PARAMETER Database
        To get users from specific database(s)
 
    .PARAMETER ExcludeDatabase
        The database(s) to exclude - this list is auto populated from the server
 
    .PARAMETER EnableException
        By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
        This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
        Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
 
    .NOTES
        Tags: Database
        Author: Klaas Vandenberghe (@PowerDbaKlaas)
 
        Website: https://dbatools.io
        Copyright: (c) 2018 by dbatools, licensed under MIT
        License: MIT https://opensource.org/licenses/MIT
 
    .EXAMPLE
        PS C:\> Get-DbaDbPartitionScheme -SqlInstance sql2016
 
        Gets all database Partition Schemes
 
    .EXAMPLE
        PS C:\> Get-DbaDbPartitionScheme -SqlInstance Server1 -Database db1
 
        Gets the Partition Schemes for the db1 database
 
    .EXAMPLE
        PS C:\> Get-DbaDbPartitionScheme -SqlInstance Server1 -ExcludeDatabase db1
 
        Gets the Partition Schemes for all databases except db1
 
    .EXAMPLE
        PS C:\> 'Sql1','Sql2/sqlexpress' | Get-DbaDbPartitionScheme
 
        Gets the Partition Schemes for the databases on Sql1 and Sql2/sqlexpress
 
    #>

    [CmdletBinding()]
    param (
        [parameter(Mandatory, ValueFromPipeline)]
        [Alias("ServerInstance", "SqlServer")]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]$SqlCredential,
        [object[]]$Database,
        [object[]]$ExcludeDatabase,
        [Alias('Silent')]
        [switch]$EnableException
    )

    process {
        foreach ($instance in $SqlInstance) {
            try {
                $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $sqlcredential
            } catch {
                Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue
            }

            $databases = $server.Databases | Where-Object IsAccessible

            if ($Database) {
                $databases = $databases | Where-Object Name -In $Database
            }
            if ($ExcludeDatabase) {
                $databases = $databases | Where-Object Name -NotIn $ExcludeDatabase
            }

            foreach ($db in $databases) {
                if (!$db.IsAccessible) {
                    Write-Message -Level Warning -Message "Database $db is not accessible. Skipping."
                    continue
                }

                $PartitionSchemes = $db.PartitionSchemes

                if (!$PartitionSchemes) {
                    Write-Message -Message "No Partition Schemes exist in the $db database on $instance" -Target $db -Level Verbose
                    continue
                }

                $PartitionSchemes | ForEach-Object {

                    Add-Member -Force -InputObject $_ -MemberType NoteProperty -Name ComputerName -value $server.ComputerName
                    Add-Member -Force -InputObject $_ -MemberType NoteProperty -Name InstanceName -value $server.ServiceName
                    Add-Member -Force -InputObject $_ -MemberType NoteProperty -Name SqlInstance -value $server.DomainInstanceName
                    Add-Member -Force -InputObject $_ -MemberType NoteProperty -Name Database -value $db.Name

                    Select-DefaultView -InputObject $_ -Property ComputerName, InstanceName, SqlInstance, Database, Name, PartitionFunction
                }
            }
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Get-DbaDatabasePartitionScheme
    }
}