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Invoke-DbaDiagnosticQuery

Mon Jan 13, 2020 12:25 pm

NAME Invoke-DbaDiagnosticQuery



SYNOPSIS

Invoke-DbaDiagnosticQuery runs the scripts provided by Glenn Berry's DMV scripts on specified servers





SYNTAX

Invoke-DbaDiagnosticQuery [-SqlInstance] <Sqlcollaborative.Dbatools.Parameter.DbaInstanceParameter[]> [-Database

<System.Object[]>] [-ExcludeDatabase <System.Object[]>] [-ExcludeQuery <System.Object[]>] [-SqlCredential

<Pscredential>] [-Path <System.IO.FileInfo>] [-QueryName <System.String[]>] [-UseSelectionHelper <Switch>]

[-InstanceOnly <Switch>] [-DatabaseSpecific <Switch>] [-ExcludeQueryTextColumn <Switch>] [-ExcludePlanColumn

<Switch>] [-NoColumnParsing <Switch>] [-OutputPath <String>] [-ExportQueries <Switch>] [-EnableException <Switch>]

[<CommonParameters>]





DESCRIPTION

This is the main function of the Sql Server Diagnostic Queries related functions in dbatools.



The diagnostic queries are developed and maintained by Glenn Berry and they can be found here along with a lot of

documentation:



http://www.sqlskills.com/blogs/glenn/ca ... v-queries/



The most recent version of the diagnostic queries are included in the dbatools module.



But it is possible to download a newer set or a specific version to an alternative location and parse and run

those scripts.



It will run all or a selection of those scripts on one or multiple servers and return the result as a PowerShell

Object





PARAMETERS

-Database [<System.Object[]>]

The database(s) to process. If unspecified, all databases will be processed



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-DatabaseSpecific [<Switch>]

Run only database level queries



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-EnableException [<Switch>]

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.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ExcludeDatabase [<System.Object[]>]

The database(s) to exclude



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ExcludePlanColumn [<Switch>]

Use this switch to exclude the [Query Plan] column from relevant queries



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ExcludeQuery [<System.Object[]>]

The Queries to exclude



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ExcludeQueryTextColumn [<Switch>]

Use this switch to exclude the [Complete Query Text] column from relevant queries



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ExportQueries [<Switch>]

Use this switch to export the diagnostic queries to sql files. Instead of running the queries, the server will

be evaluated to find the appropriate queries to run based on SQL Version.

These sql files will then be created in the OutputDirectory



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-InstanceOnly [<Switch>]

Run only instance level queries



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-NoColumnParsing [<Switch>]

Does not parse the [Complete Query Text] and [Query Plan] columns and disregards the ExcludeQueryTextColumn

and NoColumnParsing switches



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-OutputPath [<String>]

Directory to parsed diagnostics queries to. This will split them based on server, database name, and query.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-Path [<System.IO.FileInfo>]

Alternate path for the diagnostic scripts



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-QueryName [<System.String[]>]

Only run specific query



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-SqlCredential [<Pscredential>]

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.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-SqlInstance [<Sqlcollaborative.Dbatools.Parameter.DbaInstanceParameter[]>]

The target SQL Server instance or instances. Can be either a string or SMO server



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-UseSelectionHelper [<Switch>]

Provides a grid view with all the queries to choose from and will run the selection made by the user on the

Sql Server instance specified.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,

ErrorAction, ErrorVariable, WarningAction, WarningVariable,

OutBuffer, PipelineVariable, and OutVariable. For more information, see

about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).



INPUTS



OUTPUTS

System.Management.Automation.PSObject[]





NOTES





Tags: Community, GlennBerry

Author: Andre Kamman (@AndreKamman), http://clouddba.io



Website: https://dbatools.io

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

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



-------------------------- EXAMPLE 1 --------------------------



PS C:\\>Invoke-DbaDiagnosticQuery -SqlInstance sql2016



Run the selection made by the user on the Sql Server instance specified.

-------------------------- EXAMPLE 2 --------------------------



PS C:\\>Invoke-DbaDiagnosticQuery -SqlInstance sql2016 -UseSelectionHelper | Export-DbaDiagnosticQuery -Path

C:\\temp\\gboutput



Provides a grid view with all the queries to choose from and will run the selection made by the user on the SQL

Server instance specified.

Then it will export the results to Export-DbaDiagnosticQuery.

-------------------------- EXAMPLE 3 --------------------------



PS C:\\>Invoke-DbaDiagnosticQuery -SqlInstance localhost -ExportQueries -OutputPath "C:\\temp\\DiagnosticQueries"



Export All Queries to Disk

-------------------------- EXAMPLE 4 --------------------------



PS C:\\>Invoke-DbaDiagnosticQuery -SqlInstance localhost -DatabaseSpecific -ExportQueries -OutputPath

"C:\\temp\\DiagnosticQueries"



Export Database Specific Queries for all User Dbs

-------------------------- EXAMPLE 5 --------------------------



PS C:\\>Invoke-DbaDiagnosticQuery -SqlInstance localhost -DatabaseSpecific -DatabaseName 'tempdb' -ExportQueries

-OutputPath "C:\\temp\\DiagnosticQueries"



Export Database Specific Queries For One Target Database

-------------------------- EXAMPLE 6 --------------------------



PS C:\\>Invoke-DbaDiagnosticQuery -SqlInstance localhost -DatabaseSpecific -DatabaseName 'tempdb' -ExportQueries

-OutputPath "C:\\temp\\DiagnosticQueries" -QueryName 'Database-scoped Configurations'



Export Database Specific Queries For One Target Database and One Specific Query

-------------------------- EXAMPLE 7 --------------------------



PS C:\\>Invoke-DbaDiagnosticQuery -SqlInstance localhost -UseSelectionHelper



Choose Queries To Export

-------------------------- EXAMPLE 8 --------------------------



PS C:\\>[PSObject[]]$results = Invoke-DbaDiagnosticQuery -SqlInstance localhost -WhatIf



Parse the appropriate diagnostic queries by connecting to server, and instead of running them, return as

[PSCustomObject[]] to work with further

-------------------------- EXAMPLE 9 --------------------------



PS C:\\>$results = Invoke-DbaDiagnosticQuery -SqlInstance Sql2017 -DatabaseSpecific -QueryName 'Database-scoped

Configurations' -DatabaseName TestStuff



Run diagnostic queries targeted at specific database, and only run database level queries against this database.



RELATED LINKS

https://dbatools.io/Invoke-DbaDiagnosticQuery