functions/Find-DbaTrigger.ps1
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function Find-DbaTrigger { <# .SYNOPSIS Returns all triggers that contain a specific case-insensitive string or regex pattern. .DESCRIPTION This function search on Instance, Database and Object level. If you specify one or more databases, search on Server level will not be preformed. .PARAMETER SqlInstance The target SQL Server instance or instances. This can be a collection and receive pipeline input .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 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 Pattern String pattern that you want to search for in the trigger text body .PARAMETER TriggerLevel Allows specify the trigger level that you want to search. By default is All (Server, Database, Object). .PARAMETER IncludeSystemObjects By default, system triggers are ignored but you can include them within the search using this parameter. Warning - this will likely make it super slow if you run it on all databases. .PARAMETER IncludeSystemDatabases By default system databases are ignored but you can include them within the search using this parameter .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: Trigger Author: Claudio Silva (@ClaudioESSilva) Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Find-DbaTrigger .EXAMPLE PS C:\> Find-DbaTrigger -SqlInstance DEV01 -Pattern whatever Searches all user databases triggers for "whatever" in the text body .EXAMPLE PS C:\> Find-DbaTrigger -SqlInstance sql2016 -Pattern '\w+@\w+\.\w+' Searches all databases for all triggers that contain a valid email pattern in the text body .EXAMPLE PS C:\> Find-DbaTrigger -SqlInstance DEV01 -Database MyDB -Pattern 'some string' -Verbose Searches in "mydb" database triggers for "some string" in the text body .EXAMPLE PS C:\> Find-DbaTrigger -SqlInstance sql2016 -Database MyDB -Pattern RUNTIME -IncludeSystemObjects Searches in "mydb" database triggers for "runtime" in the text body #> [CmdletBinding()] param ( [parameter(Mandatory, ValueFromPipeline)] [DbaInstanceParameter[]]$SqlInstance, [PSCredential]$SqlCredential, [object[]]$Database, [object[]]$ExcludeDatabase, [parameter(Mandatory)] [string]$Pattern, [ValidateSet('All', 'Server', 'Database', 'Object')] [string]$TriggerLevel = 'All', [switch]$IncludeSystemObjects, [switch]$IncludeSystemDatabases, [switch]$EnableException ) begin { $sqlDatabaseTriggers = "SELECT tr.name, m.definition as TextBody FROM sys.sql_modules m, sys.triggers tr WHERE m.object_id = tr.object_id AND tr.parent_class = 0" $sqlTableTriggers = "SELECT OBJECT_SCHEMA_NAME(tr.parent_id) TableSchema, OBJECT_NAME(tr.parent_id) AS TableName, tr.name, m.definition as TextBody FROM sys.sql_modules m, sys.triggers tr WHERE m.object_id = tr.object_id AND tr.parent_class = 1" if (!$IncludeSystemObjects) { $sqlTableTriggers = "$sqlTableTriggers AND tr.is_ms_shipped = 0" } $everyserverstcount = 0 } process { foreach ($Instance in $SqlInstance) { try { $server = Connect-SqlInstance -SqlInstance $Instance -SqlCredential $SqlCredential } catch { Write-Message -Level Warning -Message "Failed to connect to: $Instance" continue } if ($server.versionMajor -lt 9) { Write-Message -Level Warning -Message "This command only supports SQL Server 2005 and above." Continue } #search at instance level. Only if no database was specified if ((-Not $Database) -and ($TriggerLevel -in @('All', 'Server'))) { foreach ($trigger in $server.Triggers) { $everyserverstcount++; $triggercount++ Write-Message -Level Debug -Message "Looking in Trigger: $trigger TextBody for $pattern" if ($trigger.TextBody -match $Pattern) { $triggerText = $trigger.TextBody.split("`n`r") $trTextFound = $triggerText | Select-String -Pattern $Pattern | ForEach-Object { "(LineNumber: $($_.LineNumber)) $($_.ToString().Trim())" } [PSCustomObject]@{ ComputerName = $server.ComputerName SqlInstance = $server.ServiceName TriggerLevel = "Server" Database = $null Object = $null Name = $trigger.Name IsSystemObject = $trigger.IsSystemObject CreateDate = $trigger.CreateDate LastModified = $trigger.DateLastModified TriggerTextFound = $trTextFound -join "`n" Trigger = $trigger TriggerFullText = $trigger.TextBody } | Select-DefaultView -ExcludeProperty Trigger, TriggerFullText } } Write-Message -Level Verbose -Message "Evaluated $triggercount triggers in $server" } if ($IncludeSystemDatabases) { $dbs = $server.Databases | Where-Object { $_.Status -eq "normal" } } else { $dbs = $server.Databases | Where-Object { $_.Status -eq "normal" -and $_.IsSystemObject -eq $false } } if ($Database) { $dbs = $dbs | Where-Object Name -In $Database } if ($ExcludeDatabase) { $dbs = $dbs | Where-Object Name -NotIn $ExcludeDatabase } $totalcount = 0 $dbcount = $dbs.count if ($TriggerLevel -in @('All', 'Database', 'Object')) { foreach ($db in $dbs) { Write-Message -Level Verbose -Message "Searching on database $db" # If system objects aren't needed, find trigger text using SQL # This prevents SMO from having to enumerate if (!$IncludeSystemObjects) { if ($TriggerLevel -in @('All', 'Database')) { #Get Database Level triggers (DDL) Write-Message -Level Debug -Message $sqlDatabaseTriggers $rows = $db.ExecuteWithResults($sqlDatabaseTriggers).Tables.Rows $triggercount = 0 foreach ($row in $rows) { $totalcount++; $triggercount++; $everyserverstcount++ $trigger = $row.name Write-Message -Level Verbose -Message "Looking in trigger $trigger for textBody with pattern $pattern on database $db" if ($row.TextBody -match $Pattern) { $tr = $db.Triggers | Where-Object name -eq $row.name $triggerText = $tr.TextBody.split("`n`r") $trTextFound = $triggerText | Select-String -Pattern $Pattern | ForEach-Object { "(LineNumber: $($_.LineNumber)) $($_.ToString().Trim())" } [PSCustomObject]@{ ComputerName = $server.ComputerName SqlInstance = $server.ServiceName TriggerLevel = "Database" Database = $db.name Object = $tr.Parent Name = $tr.Name IsSystemObject = $tr.IsSystemObject CreateDate = $tr.CreateDate LastModified = $tr.DateLastModified TriggerTextFound = $trTextFound -join "`n" Trigger = $tr TriggerFullText = $tr.TextBody } | Select-DefaultView -ExcludeProperty Trigger, TriggerFullText } } } if ($TriggerLevel -in @('All', 'Object')) { #Get Object Level triggers (DML) Write-Message -Level Debug -Message $sqlTableTriggers $rows = $db.ExecuteWithResults($sqlTableTriggers).Tables.Rows $triggercount = 0 foreach ($row in $rows) { $totalcount++; $triggercount++; $everyserverstcount++ $trigger = $row.name $triggerParentSchema = $row.TableSchema $triggerParent = $row.TableName Write-Message -Level Verbose -Message "Looking in trigger $trigger for textBody with pattern $pattern in object $triggerParentSchema.$triggerParent at database $db" if ($row.TextBody -match $Pattern) { $tr = ($db.Tables | Where-Object { $_.Name -eq $triggerParent -and $_.Schema -eq $triggerParentSchema }).Triggers | Where-Object name -eq $row.name if ($null -eq $tr) { Write-Message -Level Verbose -Message "Could not find table named $($row.Name). Will try to find on Views." $tr = ($db.Views | Where-Object { $_.Name -eq $triggerParent -and $_.Schema -eq $triggerParentSchema }).Triggers | Where-Object name -eq $row.name } $triggerText = $tr.TextBody.split("`n`r") $trTextFound = $triggerText | Select-String -Pattern $Pattern | ForEach-Object { "(LineNumber: $($_.LineNumber)) $($_.ToString().Trim())" } [PSCustomObject]@{ ComputerName = $server.ComputerName SqlInstance = $server.ServiceName TriggerLevel = "Object" Database = $db.name Object = $tr.Parent Name = $tr.Name IsSystemObject = $tr.IsSystemObject CreateDate = $tr.CreateDate LastModified = $tr.DateLastModified TriggerTextFound = $trTextFound -join "`n" Trigger = $tr TriggerFullText = $tr.TextBody } | Select-DefaultView -ExcludeProperty Trigger, TriggerFullText } } } } else { if ($TriggerLevel -in @('All', 'Database')) { #Get Database Level triggers (DDL) $triggers = $db.Triggers $triggercount = 0 foreach ($tr in $triggers) { $totalcount++; $triggercount++; $everyserverstcount++ $trigger = $tr.Name Write-Message -Level Verbose -Message "Looking in trigger $trigger for textBody with pattern $pattern on database $db" if ($tr.TextBody -match $Pattern) { $triggerText = $tr.TextBody.split("`n`r") $trTextFound = $triggerText | Select-String -Pattern $Pattern | ForEach-Object { "(LineNumber: $($_.LineNumber)) $($_.ToString().Trim())" } [PSCustomObject]@{ ComputerName = $server.ComputerName SqlInstance = $server.ServiceName TriggerLevel = "Database" Database = $db.name Object = $tr.Parent Name = $tr.Name IsSystemObject = $tr.IsSystemObject CreateDate = $tr.CreateDate LastModified = $tr.DateLastModified TriggerTextFound = $trTextFound -join "`n" Trigger = $tr TriggerFullText = $tr.TextBody } | Select-DefaultView -ExcludeProperty Trigger, TriggerFullText } } } if ($TriggerLevel -in @('All', 'Object')) { #Get Object Level triggers (DML) $triggers = $db.Tables | ForEach-Object { $_.Triggers } $triggers += $db.Views | ForEach-Object { $_.Triggers } $triggercount = 0 foreach ($tr in $triggers) { $totalcount++; $triggercount++; $everyserverstcount++ $trigger = $tr.Name Write-Message -Level Verbose -Message "Looking in trigger $trigger for textBody with pattern $pattern in object $($tr.Parent) at database $db" if ($tr.TextBody -match $Pattern) { $triggerText = $tr.TextBody.split("`n`r") $trTextFound = $triggerText | Select-String -Pattern $Pattern | ForEach-Object { "(LineNumber: $($_.LineNumber)) $($_.ToString().Trim())" } [PSCustomObject]@{ ComputerName = $server.ComputerName SqlInstance = $server.ServiceName TriggerLevel = "Object" Database = $db.name Object = $tr.Parent Name = $tr.Name IsSystemObject = $tr.IsSystemObject CreateDate = $tr.CreateDate LastModified = $tr.DateLastModified TriggerTextFound = $trTextFound -join "`n" Trigger = $tr TriggerFullText = $tr.TextBody } | Select-DefaultView -ExcludeProperty Trigger, TriggerFullText } } } } Write-Message -Level Verbose -Message "Evaluated $triggercount triggers in $db" } } Write-Message -Level Verbose -Message "Evaluated $totalcount total triggers in $dbcount databases" } } end { Write-Message -Level Verbose -Message "Evaluated $everyserverstcount total triggers" } } |