commands

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Get-DbaLastGoodCheckDb

Author Jakob Bindslet ([email protected])
Availability Windows, Linux, macOS

 

Synopsis

Get date/time for last known good DBCC CHECKDB

Description

Retrieves and compares the date/time for the last known good DBCC CHECKDB, as well as the creation date/time for the database.

This function supports SQL Server 2005 and higher.

Please note that this script uses the DBCC DBINFO() WITH TABLERESULTS. DBCC DBINFO has several known weak points, such as:

  • DBCC DBINFO is an undocumented feature/command.
  • The LastKnowGood timestamp is updated when a DBCC CHECKFILEGROUP is performed.
  • The LastKnowGood timestamp is updated when a DBCC CHECKDB WITH PHYSICAL_ONLY is performed.
  • The LastKnowGood timestamp does not get updated when a database in READ_ONLY.

An empty ($null) LastGoodCheckDb result indicates that a good DBCC CHECKDB has never been performed.

SQL Server 2008R2 has a "bug" that causes each databases to possess two dbi_dbccLastKnownGood fields, instead of the normal one.

This script will only display the newest timestamp. If -Verbose is specified, the function will announce every time more than one dbi_dbccLastKnownGood fields is encountered.

Syntax

Get-DbaLastGoodCheckDb
    [[-SqlInstance] <DbaInstanceParameter[]>]
    [[-SqlCredential] <PSCredential>]
    [[-Database] <Object[]>]
    [[-ExcludeDatabase] <Object[]>]
    [[-InputObject] <Object[]>]
    [-EnableException]
    [<CommonParameters>]

 

Examples

 

Example: 1
PS C:\> Get-DbaLastGoodCheckDb -SqlInstance ServerA\sql987

Returns a custom object displaying Server, Database, DatabaseCreated, LastGoodCheckDb, DaysSinceDbCreated, DaysSinceLastGoodCheckDb, Status and DataPurityEnabled

Example: 2
PS C:\> Get-DbaLastGoodCheckDb -SqlInstance ServerA\sql987 -SqlCredential sqladmin | Format-Table -AutoSize

Returns a formatted table displaying Server, Database, DatabaseCreated, LastGoodCheckDb, DaysSinceDbCreated, DaysSinceLastGoodCheckDb, Status and DataPurityEnabled. Authenticates using SQL Server
authentication.

Example: 3
PS C:\> Get-DbaLastGoodCheckDb -SqlInstance sql2016 -ExcludeDatabase "TempDB" | Format-Table -AutoSize

Returns a formatted table displaying Server, Database, DatabaseCreated, LastGoodCheckDb, DaysSinceDbCreated, DaysSinceLastGoodCheckDb, Status and DataPurityEnabled. All databases except for "TempDB"
will be displayed in the output.

Example: 4
PS C:\> Get-DbaDatabase -SqlInstance sql2016 -Database DB1, DB2 | Get-DbaLastGoodCheckDb | Format-Table -AutoSize

Returns a formatted table displaying Server, Database, DatabaseCreated, LastGoodCheckDb, DaysSinceDbCreated, DaysSinceLastGoodCheckDb, Status and DataPurityEnabled. Only databases DB1 abd DB2 will be
displayed in the output.

Optional Parameters

-SqlInstance

The target SQL Server instance or instances. Defaults to localhost.

Alias
Required False
Pipeline true (ByValue)
Default Value
-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.

Alias
Required False
Pipeline false
Default Value
-Database

Specifies one or more database(s) to process. If unspecified, all databases will be processed.

Alias
Required False
Pipeline false
Default Value
-ExcludeDatabase

Specifies one or more database(s) to exclude from processing.

Alias
Required False
Pipeline false
Default Value
-InputObject

Enables piped input from Get-DbaDatabase

Alias
Required False
Pipeline true (ByValue)
Default Value
-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.

Alias
Required False
Pipeline false
Default Value False

 

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