Get-DbaPlanCache

Want to see the source code for this command? Check out Get-DbaPlanCache on GitHub.
Want to see the Bill Of Health for this command? Check out Get-DbaPlanCache.

Synopsis

Provides information about adhoc and prepared plan cache usage

Description

Checks adhoc and prepared plan cache for each database, if over 100 MB you should consider using Remove-DbaQueryPlan to clear the plan caches or turning on "optimize for adhoc workloads" configuration if running 2008 or later.

References: https://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/

Note: This command returns results from all SQL server instances on the destination server but the process column is specific to -SqlInstance passed.

Syntax

Get-DbaPlanCache
    [-SqlInstance] <DbaInstanceParameter[]>
    [[-SqlCredential] <PSCredential>]
    [-EnableException]
    [<CommonParameters>]

Examples

Example: 1

PS C:\> Get-DbaPlanCache -SqlInstance sql2017

Returns the single use plan cache usage information for SQL Server instance 2017

Example: 2

PS C:\> Get-DbaPlanCache -SqlInstance sql2017 -SqlCredential sqladmin

Returns the single use plan cache usage information for SQL Server instance 2017 using login 'sqladmin'

Required Parameters

-SqlInstance

The target SQL Server instance or instances.

Optional Parameters

-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.

-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.