functions/Find-DbaDatabaseGrowthEvent.ps1

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function Find-DbaDatabaseGrowthEvent {
    <#
        .SYNOPSIS
            Finds any database AutoGrow events in the Default Trace.
 
        .DESCRIPTION
            Finds any database AutoGrow events in the Default Trace.
 
        .PARAMETER SqlInstance
            The SQL Server that you're connecting to.
 
        .PARAMETER SqlCredential
            SqlCredential object used to connect to the SQL Server as a different user.
 
        .PARAMETER Database
            The database(s) to process - this list is auto-populated from the server. If unspecified, all databases will be processed.
 
        .PARAMETER ExcludeDatabase
            The database(s) to exclude - this list is auto-populated from the server
 
        .PARAMETER Silent
            Use this switch to disable any kind of verbose messages
 
        .NOTES
            Tags: AutoGrow
            Author: Aaron Nelson
            Query Extracted from SQL Server Management Studio (SSMS) 2016.
 
            Website: https://dbatools.io
            Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
            License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0
 
        .LINK
            https://dbatools.io/Find-DbaDatabaseGrowthEvent
 
        .EXAMPLE
            Find-DBADatabaseGrowthEvent -SqlInstance localhost
 
            Returns any database AutoGrow events in the Default Trace for every database on the localhost instance.
 
        .EXAMPLE
            Find-DBADatabaseGrowthEvent -SqlInstance ServerA\SQL2016, ServerA\SQL2014
 
            Returns any database AutoGrow events in the Default Traces for every database on ServerA\sql2016 & ServerA\SQL2014.
 
        .EXAMPLE
            Find-DBADatabaseGrowthEvent -SqlInstance ServerA\SQL2016 | Format-Table -AutoSize -Wrap
 
            Returns any database AutoGrow events in the Default Trace for every database on the ServerA\SQL2016 instance in a table format.
    #>

    [CmdletBinding()]
    Param (
        [parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [Alias("ServerInstance", "SqlServer")]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]
        $SqlCredential,
        [Alias("Databases")]
        [object[]]$Database,
        [object[]]$ExcludeDatabase,
        [switch]$Silent
    )

    begin {
        $sql = "
            BEGIN TRY
                IF (SELECT CONVERT(INT,[value_in_use]) FROM sys.configurations WHERE [name] = 'default trace enabled' ) = 1
                    BEGIN
                        DECLARE @curr_tracefilename VARCHAR(500);
                        DECLARE @base_tracefilename VARCHAR(500);
                        DECLARE @indx INT;
 
                        SELECT @curr_tracefilename = [path]
                        FROM sys.traces
                        WHERE is_default = 1 ;
 
                        SET @curr_tracefilename = REVERSE(@curr_tracefilename);
                        SELECT @indx = PATINDEX('%\%', @curr_tracefilename);
                        SET @curr_tracefilename = REVERSE(@curr_tracefilename);
                        SET @base_tracefilename = LEFT( @curr_tracefilename,LEN(@curr_tracefilename) - @indx) + '\log.trc';
 
                        SELECT
                            SERVERPROPERTY('MachineName') AS ComputerName,
                            ISNULL(SERVERPROPERTY('InstanceName'), 'MSSQLSERVER') AS InstanceName,
                            SERVERPROPERTY('ServerName') AS SqlInstance,
                            CONVERT(INT,(DENSE_RANK() OVER (ORDER BY [StartTime] DESC))%2) AS OrderRank,
                                CONVERT(INT, [EventClass]) AS EventClass,
                            [DatabaseName],
                            [Filename],
                            CONVERT(INT,(Duration/1000)) AS Duration,
                            DATEADD (MINUTE, DATEDIFF(MINUTE, GETDATE(), GETUTCDATE()), [StartTime]) AS StartTime, -- Convert to UTC time
                            DATEADD (MINUTE, DATEDIFF(MINUTE, GETDATE(), GETUTCDATE()), [EndTime]) AS EndTime, -- Convert to UTC time
                            ([IntegerData]*8.0/1024) AS ChangeInSize
                        FROM::fn_trace_gettable( @base_tracefilename, DEFAULT )
                        WHERE
                            [EventClass] >= 92
                            AND [EventClass] <= 95
                            AND [ServerName] = @@SERVERNAME
                            AND [DatabaseName] IN (_DatabaseList_)
                        ORDER BY [StartTime] DESC;
                    END
                ELSE
                    SELECT
                        SERVERPROPERTY('MachineName') AS ComputerName,
                        ISNULL(SERVERPROPERTY('InstanceName'), 'MSSQLSERVER') AS InstanceName,
                        SERVERPROPERTY('ServerName') AS SqlInstance,
                        -100 AS [OrderRank],
                        -1 AS [OrderRank],
                        0 AS [EventClass],
                        0 [DatabaseName],
                        0 AS [Filename],
                        0 AS [Duration],
                        0 AS [StartTime],
                        0 AS [EndTime],
                        0 AS ChangeInSize
            END TRY
            BEGIN CATCH
                SELECT
                    SERVERPROPERTY('MachineName') AS ComputerName,
                    ISNULL(SERVERPROPERTY('InstanceName'), 'MSSQLSERVER') AS InstanceName,
                    SERVERPROPERTY('ServerName') AS SqlInstance,
                    -100 AS [OrderRank],
                    -100 AS [OrderRank],
                    ERROR_NUMBER() AS [EventClass],
                    ERROR_SEVERITY() AS [DatabaseName],
                    ERROR_STATE() AS [Filename],
                    ERROR_MESSAGE() AS [Duration],
                    1 AS [StartTime],
                    1 AS [EndTime],
                    1 AS [ChangeInSize]
            END CATCH"

    }
    process {
        foreach ($instance in $SqlInstance) {
            Write-Message -Level Verbose -Message "Connecting to $instance"
            try {
                $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential
            }
            catch {
                Write-Message -Level Warning -Message "Can't connect to $instance. Moving on."
                continue
            }

            $dbs = $server.Databases

            if ($Database) {
                $dbs = $dbs | Where-Object Name -in $Database
            }

            if ($ExcludeDatabase) {
                $dbs = $dbs | Where-Object Name -notin $ExcludeDatabase
            }

            #Create dblist name in 'bd1', 'db2' format
            $dbsList = "'$($($dbs | ForEach-Object {$_.Name}) -join "','")'"
            Write-Message -Level Verbose -Message "Executing query against $dbsList on $instance"
            
            $sql = $sql -replace '_DatabaseList_', $dbsList
            Write-Message -Level Debug -Message $sql

            $props = 'ComputerName', 'InstanceName', 'SqlInstance', 'EventClass', 'DatabaseName', 'Filename', 'Duration', 'StartTime', 'EndTime', 'ChangeInSize'

            Select-DefaultView -InputObject $server.Query($sql) -Property $props
        }
    }
}