functions/Read-DbaTraceFile.ps1

function Read-DbaTraceFile {
    <#
.SYNOPSIS
Reads a trace file from specied SQL Server Database
 
.DESCRIPTION
Using the fn_trace_gettable function, a trace file is read and returned as a PowerShell object
 
This function returns the whole of the trace file. The information is presented in the format that the trace subsystem uses.
 
.PARAMETER SqlInstance
A SQL Server instance to connect to
 
.PARAMETER SqlCredential
A credeial to use to conect to the SQL Instance rather than using Windows Authentication
 
.PARAMETER Path
Path to the tarce file. This path is relative to the SQL Server instance.
     
.PARAMETER Database
Search for results only with specific DatabaseName. Uses IN for comparisons.
     
.PARAMETER Login
Search for results only with specific Logins. Uses IN for comparisons.
 
.PARAMETER Spid
Search for results only with specific Spids. Uses IN for comparisons.
 
.PARAMETER EventClass
Search for results only with specific EventClasses. Uses IN for comparisons.
 
.PARAMETER ObjectType
Search for results only with specific ObjectTypes. Uses IN for comparisons.
 
.PARAMETER Error
Search for results only with specific Errors. Uses IN for comparisons.
 
.PARAMETER EventSequence
Search for results only with specific EventSequences. Uses IN for comparisons.
 
.PARAMETER TextData
Search for results only with specific TextData. Uses LIKE for comparisons.
 
.PARAMETER ApplicationName
Search for results only with specific ApplicationNames. Uses LIKE for comparisons.
 
.PARAMETER ObjectName
Search for results only with specific ObjectNames. Uses LIKE for comparisons.
 
.PARAMETER Where
Custom where clause - use without the word "WHERE". Here are the available columns:
 
TextData
BinaryData
DatabaseID
TransactionID
LineNumber
NTUserName
NTDomainName
HostName
ClientProcessID
ApplicationName
LoginName
SPID
Duration
StartTime
EndTime
Reads
Writes
CPU
Permissions
Severity
EventSubClass
ObjectID
Success
IndexID
IntegerData
ServerName
EventClass
ObjectType
NestLevel
State
Error
Mode
Handle
ObjectName
DatabaseName
FileName
OwnerName
RoleName
TargetUserName
DBUserName
LoginSid
TargetLoginName
TargetLoginSid
ColumnPermissions
LinkedServerName
ProviderName
MethodName
RowCounts
RequestID
XactSequence
EventSequence
BigintData1
BigintData2
GUID
IntegerData2
ObjectID2
Type
OwnerID
ParentName
IsSystem
Offset
SourceDatabaseID
SqlHandle
SessionLoginName
PlanHandle
GroupID
     
.PARAMETER Silent
Use this switch to disable any kind of verbose messages
     
.NOTES
Tags: Security, Trace
Website: https://dbatools.io
Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0
 
.EXAMPLE
Read-DbaTraceFile -SqlInstance sql2016 -Database master, tempdb -Path C:\traces\big.trc
 
Reads the tracefile C:\traces\big.trc, stored on the sql2016 sql server. Filters only results that have master or tempdb as the DatabaseName.
     
.EXAMPLE
Read-DbaTraceFile -SqlInstance sql2016 -Database master, tempdb -Path C:\traces\big.trc -TextData 'EXEC SP_PROCOPTION'
 
Reads the tracefile C:\traces\big.trc, stored on the sql2016 sql server.
Filters only results that have master or tempdb as the DatabaseName and that have 'EXEC SP_PROCOPTION' somewhere in the text.
     
.EXAMPLE
Read-DbaTraceFile -SqlInstance sql2016 -Path C:\traces\big.trc -Where "LinkedServerName = 'myls' and StartTime > '5/30/2017 4:27:52 PM'"
 
Reads the tracefile C:\traces\big.trc, stored on the sql2016 sql server.
Filters only results where LinkServerName = myls and StartTime is greater than '5/30/2017 4:27:52 PM'.
 
#>

    [CmdletBinding()]
    Param (
        [parameter(Position = 0, Mandatory, ValueFromPipeline)]
        [Alias("ServerInstance", "SqlServer")]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]$SqlCredential,
        [string[]]$Path,
        [string[]]$Database,
        [string[]]$Login,
        [int[]]$Spid,
        [string[]]$EventClass,
        [string[]]$ObjectType,
        [int[]]$Error,
        [int[]]$EventSequence,
        [string[]]$TextData,
        [string[]]$ApplicationName,
        [string[]]$ObjectName,
        [string]$Where,
        [switch]$Silent
    )
    
    process {
        
        if ($where) {
            $Where = "where $where"
        }
        elseif ($Database -or $Login -or $Spid) {
            
            $tempwhere = @()
            
            if ($Database) {
                $where = $database -join "','"
                $tempwhere += "databasename in ('$where')"
            }
            
            if ($Login) {
                $where = $Login -join "','"
                $tempwhere += "LoginName in ('$where')"
            }
            
            if ($Spid) {
                $where = $Spid -join ","
                $tempwhere += "Spid in ($where)"
            }
            
            if ($EventClass) {
                $where = $EventClass -join ","
                $tempwhere += "EventClass in ($where)"
            }
            
            if ($ObjectType) {
                $where = $ObjectType -join ","
                $tempwhere += "ObjectType in ($where)"
            }
            
            if ($Error) {
                $where = $Error -join ","
                $tempwhere += "Error in ($where)"
            }
            
            if ($EventSequence) {
                $where = $EventSequence -join ","
                $tempwhere += "EventSequence in ($where)"
            }
            
            if ($TextData) {
                $where = $TextData -join "%','%"
                $tempwhere += "TextData like ('%$where%')"
            }
            
            if ($ApplicationName) {
                $where = $ApplicationName -join "%','%"
                $tempwhere += "ApplicationName like ('%$where%')"
            }
            
            if ($ObjectName) {
                $where = $ObjectName -join "%','%"
                $tempwhere += "ObjectName like ('%$where%')"
            }
            
            $tempwhere = $tempwhere -join " and "
            $Where = "where $tempwhere"
        }
        
        foreach ($instance in $sqlinstance) {
            try {
                $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential -MinimumVersion 9
            }
            catch {
                Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue
                return
            }
            
            if (Test-Bound -Parameter Path) {
                $currentpath = $path
            }
            else {
                $currentpath = $server.ConnectionContext.ExecuteScalar("Select path from sys.traces where is_default = 1")
            }
            
            foreach ($file in $currentpath) {
                Write-Message -Level Verbose -Message "Parsing $file"
                
                $exists = Test-DbaSqlPath -SqlInstance $server -Path $file
                
                if (!$exists) {
                    Write-Message -Level Warning -Message "Path does not exist" -Target $file
                    Continue
                }
                
                $sql = "select SERVERPROPERTY('MachineName') AS ComputerName,
                                   ISNULL(SERVERPROPERTY('InstanceName'), 'MSSQLSERVER') AS InstanceName,
                                   SERVERPROPERTY('ServerName') AS SqlInstance,
                                    * FROM [fn_trace_gettable]('$file', DEFAULT) $Where"

                try {
                    $server.Query($sql)
                }
                catch {
                    Stop-Function -Message "Error returned from SQL Server: $_" -Target $server -InnerErrorRecord $_
                }
            }
        }
    }
}