functions/Get-DbaBackupHistory.ps1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
Function Get-DbaBackupHistory
{
<#
.SYNOPSIS
Returns backup history details for databases on a SQL Server
  
.DESCRIPTION
Returns backup history details for some or all databases on a SQL Server.
 
You can even get detailed information (including file path) for latest full, differential and log files.
  
Reference: http://www.sqlhub.com/2011/07/find-your-backup-history-in-sql-server.html
  
.PARAMETER SqlServer
The SQL Server that you're connecting to.
 
.PARAMETER Credential
Credential object used to connect to the SQL Server as a different user
 
.PARAMETER Databases
Return backup information for only specific databases. These are only the databases that currently exist on the server.
  
.PARAMETER Since
Datetime object used to narrow the results to a date
  
.PARAMETER Force
Returns a boatload of information, the way SQL Server returns it
 
.PARAMETER Last
Returns last full, diff and log backup sets
 
.PARAMETER LastFull
Returns last full backup set
 
.PARAMETER LastDiff
Returns last differential backup set
 
.PARAMETER LastLog
Returns last log backup set
 
.PARAMETER IgnoreCopyOnly
If set, Get-DbaBackupHistory will ignore CopyOnly backups
 
.NOTES
Tags: Storage, DisasterRecovery, Backup
dbatools PowerShell module (https://dbatools.io, clemaire@gmail.com)
Copyright (C) 2016 Chrissy LeMaire
 
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
 
.LINK
https://dbatools.io/Get-DbaBackupHistory
 
.EXAMPLE
Get-DbaBackupHistory -SqlServer sqlserver2014a
 
Returns server name, database, username, backup type, date for all backups databases on sqlserver2014a. This may return a ton of rows; consider using filters that are included in other examples.
 
.EXAMPLE
$cred = Get-Credential sqladmin
Get-DbaBackupHistory -SqlServer sqlserver2014a -SqlCredential $cred
 
Does the same as above but logs in as SQL user "sqladmin"
 
.EXAMPLE
Get-DbaBackupHistory -SqlServer sqlserver2014a -Databases db1, db2 -Since '7/1/2016 10:47:00'
 
Returns backup information only for databases db1 and db2 on sqlserve2014a since July 1, 2016 at 10:47 AM.
 
.EXAMPLE
Get-DbaBackupHistory -SqlServer sql2014 -Databases AdventureWorks2014, pubs -Force | Format-Table
 
Returns information only for AdventureWorks2014 and pubs, and makes the output pretty
 
.EXAMPLE
Get-DbaBackupHistory -SqlServer sql2014 -Databases AdventureWorks2014 -Last
 
Returns information about the most recent full, differential and log backups for AdventureWorks2014 on sql2014
  
.EXAMPLE
Get-DbaBackupHistory -SqlServer sql2014 -Databases AdventureWorks2014 -LastFull
 
Returns information about the most recent full backup for AdventureWorks2014 on sql2014
  
.EXAMPLE
Get-SqlRegisteredServerName -SqlServer sql2016 | Get-DbaBackupHistory
 
Returns database backup information for every database on every server listed in the Central Management Server on sql2016
  
.EXAMPLE
Get-DbaBackupHistory -SqlServer sqlserver2014a, sql2016 -Force
 
Lots of detailed information for all databases on sqlserver2014a and sql2016.
  
#>

[CmdletBinding(DefaultParameterSetName = "Default")]
Param (
[parameter(Mandatory = $true, ValueFromPipeline = $true)]
[Alias("ServerInstance", "SqlInstance")]
[object[]]$SqlServer,
[Alias("SqlCredential")]
[PsCredential]$Credential,
[switch]$IgnoreCopyOnly,
[Parameter(ParameterSetName = "NoLast")]
[switch]$Force,
[Parameter(ParameterSetName = "NoLast")]
[datetime]$Since,
[Parameter(ParameterSetName = "Last")]
[switch]$Last,
[Parameter(ParameterSetName = "Last")]
[switch]$LastFull,
[Parameter(ParameterSetName = "Last")]
[switch]$LastDiff,
[Parameter(ParameterSetName = "Last")]
[switch]$LastLog
)

DynamicParam { if ($SqlServer) { return Get-ParamSqlDatabases -SqlServer $SqlServer[0] -SqlCredential $Credential } }

BEGIN
{
if ($Since -ne $null)
{
$Since = $Since.ToString("yyyy-MM-dd HH:mm:ss")
}
}

PROCESS
{
$databases = $psboundparameters.Databases
foreach ($server in $SqlServer)
{
try
{
Write-Verbose "Connecting to $server"
$sourceserver = Connect-SqlServer -SqlServer $server -SqlCredential $Credential
$servername = $sourceserver.name

if ($sourceserver.VersionMajor -lt 9)
{
Write-Warning "SQL Server 2000 not supported"
continue
}
$BackupSizeColumn = 'backup_size'
if ($sourceserver.VersionMajor -ge 10)
{
# 2008 introduced compressed_backup_size
$BackupSizeColumn = 'compressed_backup_size'
}

if ($last)
{
if ($databases -eq $null) { $databases = $sourceserver.databases.name }
Get-DbaBackupHistory -SqlServer $sourceserver -LastFull -Databases $databases
Get-DbaBackupHistory -SqlServer $sourceserver -LastDiff -Databases $databases
Get-DbaBackupHistory -SqlServer $sourceserver -LastLog -Databases $databases
}
elseif ($LastFull -or $LastDiff -or $LastLog)
{
$sql = @()

if ($databases -eq $null) { $databases = $sourceserver.databases.name }

if ($LastFull) { $first = 'D'; $second = 'P' }
if ($LastDiff) { $first = 'I'; $second = 'Q' }
if ($LastLog) { $first = 'L'; $second = 'L' }

$databases = $databases | Select-Object -Unique
foreach ($database in $databases)
{
Write-Verbose "Processing $database"

$sql += "SELECT
          a.BackupSetRank,
          a.Server,
          a.[Database],
          a.Username,
          a.Start,
          a.[End],
          a.Duration,
          a.[Path],
          a.Type,
          a.TotalSizeMB,
          a.MediaSetId,
          a.Software
        FROM (SELECT
          RANK() OVER (ORDER BY backupset.media_set_id DESC) AS 'BackupSetRank',
          '$servername' AS Server,
          backupset.database_name AS [Database],
          backupset.user_name AS Username,
          backupset.backup_start_date AS Start,
          backupset.backup_finish_date AS [End],
          CAST(DATEDIFF(SECOND, backupset.backup_start_date, backupset.backup_finish_date) AS varchar(4)) + ' ' + 'Seconds' AS Duration,
          mediafamily.physical_device_name AS Path,
          CAST(backupset.$BackupSizeColumn / 1048576 AS numeric(10, 2)) AS TotalSizeMB,
          CASE backupset.type
         WHEN 'L' THEN 'Log'
         WHEN 'D' THEN 'Full'
         WHEN 'F' THEN 'File'
         WHEN 'I' THEN 'Differential'
         WHEN 'G' THEN 'Differential File'
         WHEN 'P' THEN 'Partial Full'
         WHEN 'Q' THEN 'Partial Differential'
         ELSE NULL
          END AS Type,
          backupset.media_set_id AS MediaSetId,
          CASE mediafamily.device_type
         WHEN 2 THEN 'Disk'
         WHEN 102 THEN 'Permanent Disk Device'
         WHEN 5 THEN 'Tape'
         WHEN 105 THEN 'Permanent Tape Device'
         WHEN 6 THEN 'Pipe'
         WHEN 106 THEN 'Permanent Pipe Device'
         WHEN 7 THEN 'Virtual Device'
         ELSE 'Unknown'
          END AS DeviceType,
          mediaset.software_name AS Software
        FROM msdb..backupmediafamily AS mediafamily
        INNER JOIN msdb..backupmediaset AS mediaset
          ON mediafamily.media_set_id = mediaset.media_set_id
        INNER JOIN msdb..backupset AS backupset
          ON backupset.media_set_id = mediaset.media_set_id
        WHERE backupset.database_name = '$database'
        AND (type = '$first'
        OR type = '$second')) AS a
        WHERE a.BackupSetRank = 1
        ORDER BY a.Type;"

}

$sql = $sql -join "; "
}
else
{
if ($Force -eq $true)
{
$select = "SELECT '$servername' AS [Server], * "
}
else
{
$select = "SELECT
           '$servername' AS [Server],
           backupset.database_name AS [Database],
           backupset.user_name AS Username,
           backupset.backup_start_date AS [Start],
           backupset.backup_finish_date AS [End],
           CAST(DATEDIFF(SECOND, backupset.backup_start_date, backupset.backup_finish_date) AS varchar(4)) + ' ' + 'Seconds' AS Duration,
           mediafamily.physical_device_name AS Path,
           CAST((backupset.$BackupSizeColumn / 1048576) AS numeric(10, 2)) AS TotalSizeMB,
           CASE backupset.type
          WHEN 'L' THEN 'Log'
          WHEN 'D' THEN 'Full'
          WHEN 'F' THEN 'File'
          WHEN 'I' THEN 'Differential'
          WHEN 'G' THEN 'Differential File'
          WHEN 'P' THEN 'Partial Full'
          WHEN 'Q' THEN 'Partial Differential'
          ELSE NULL
           END AS Type,
           backupset.media_set_id AS MediaSetId,
           CASE mediafamily.device_type
          WHEN 2 THEN 'Disk'
          WHEN 102 THEN 'Permanent Disk Device'
          WHEN 5 THEN 'Tape'
          WHEN 105 THEN 'Permanent Tape Device'
          WHEN 6 THEN 'Pipe'
          WHEN 106 THEN 'Permanent Pipe Device'
          WHEN 7 THEN 'Virtual Device'
          ELSE 'Unknown'
           END AS DeviceType,
           mediaset.software_name AS Software"

}

$from = " FROM msdb..backupmediafamily mediafamily
         INNER JOIN msdb..backupmediaset mediaset ON mediafamily.media_set_id = mediaset.media_set_id
         INNER JOIN msdb..backupset backupset ON backupset.media_set_id = mediaset.media_set_id"


if ($databases -or $Since -or $Last -or $LastFull -or $LastLog -or $LastDiff -or $IgnoreCopyOnly)
{
$where = " WHERE "
}

$wherearray = @()

if ($databases.length -gt 0)
{
$dblist = $databases -join "','"
$wherearray += "database_name in ('$dblist')"
}

if ($Last -or $LastFull -or $LastLog -or $LastDiff)
{
$tempwhere = $wherearray -join " and "
$wherearray += "type = 'Full' and mediaset.media_set_id = (select top 1 mediaset.media_set_id $from $tempwhere order by backupset.backup_finish_date DESC)"
}

if ($Since -ne $null)
{
$wherearray += "backupset.backup_finish_date >= '$since'"
}

if ($IgnoreCopyOnly)
{
$wherearray += "is_copy_only='0'"
}

if ($where.length -gt 0)
{
$wherearray = $wherearray -join " and "
$where = "$where $wherearray"
}

$sql = "$select $from $where ORDER BY backupset.backup_finish_date DESC"
}

if (!$last)
{
Write-Debug $sql
$results = $sourceserver.ConnectionContext.ExecuteWithResults($sql).Tables.Rows | Select-Object * -ExcludeProperty BackupSetRank, RowError, Rowstate, table, itemarray, haserrors
$results = $results | Select-Object *, @{Name="FullName";Expression={$_.Path}}
foreach ($result in $results)
{ 
$result | Select-DefaultView -ExcludeProperty FullName
}
                }
}
catch
{
Write-Warning $_
Write-Exception $_
continue
}
}
}
}