dbatools

1.1.81

functions/Test-DbaDbCollation.ps1

                                function Test-DbaDbCollation {

    <#

    .SYNOPSIS

        Compares Database Collations to Server Collation

    .DESCRIPTION

        Compares Database Collations to Server Collation

    .PARAMETER SqlInstance

        The target SQL Server instance or instances.

    .PARAMETER SqlCredential

        Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).

        Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported.

        For MFA support, please use Connect-DbaInstance.

    .PARAMETER Database

        Specifies the database(s) to process. Options for this list are auto-populated from the server. If unspecified, all databases will be processed.

    .PARAMETER ExcludeDatabase

        Specifies the database(s) to exclude from processing. Options for this list are 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, Collation

        Author: Chrissy LeMaire (@cl), netnerds.net

        Website: https://dbatools.io

        Copyright: (c) 2018 by dbatools, licensed under MIT

        License: MIT https://opensource.org/licenses/MIT

    .LINK

        https://dbatools.io/Test-DbaDbCollation

    .EXAMPLE

        PS C:\> Test-DbaDbCollation -SqlInstance sqlserver2014a

        Returns server name, database name and true/false if the collations match for all databases on sqlserver2014a.

    .EXAMPLE

        PS C:\> Test-DbaDbCollation -SqlInstance sqlserver2014a -Database db1, db2

        Returns information for the db1 and db2 databases on sqlserver2014a.

    .EXAMPLE

        PS C:\> Test-DbaDbCollation -SqlInstance sqlserver2014a, sql2016 -Exclude db1

        Returns information for database and server collations for all databases except db1 on sqlserver2014a and sql2016.

    .EXAMPLE

        PS C:\> Get-DbaRegServer -SqlInstance sql2016 | Test-DbaDbCollation

        Returns db/server collation information for every database on every server listed in the Central Management Server on sql2016.

    #>

    [CmdletBinding()]

    param (

        [parameter(Mandatory, ValueFromPipeline)]

        [DbaInstanceParameter[]]$SqlInstance,

        [PSCredential]$SqlCredential,

        [object[]]$Database,

        [object[]]$ExcludeDatabase,

        [switch]$EnableException

    )

    process {

        foreach ($instance in $SqlInstance) {

            try {

                $server = Connect-DbaInstance -SqlInstance $instance -SqlCredential $SqlCredential

            } catch {

                Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue

            }

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

            if ($Database) {

                $dbs = $dbs | Where-Object { $Database -contains $_.Name }

            }

            if ($ExcludeDatabase) {

                $dbs = $dbs | Where-Object Name -NotIn $ExcludeDatabase

            }

            foreach ($db in $dbs) {

                Write-Message -Level Verbose -Message "Processing $($db.name) on $servername."

                [PSCustomObject]@{

                    ComputerName      = $server.ComputerName

                    InstanceName      = $server.ServiceName

                    SqlInstance       = $server.DomainInstanceName

                    Database          = $db.name

                    ServerCollation   = $server.collation

                    DatabaseCollation = $db.collation

                    IsEqual           = $db.collation -eq $server.collation

                }

            }

        }

    }

}

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