functions/Remove-DbaDatabase.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
Function Remove-DbaDatabase
{
<#
.SYNOPSIS
Drops a database, hopefully even the really stuck ones.
 
.DESCRIPTION
Tries a bunch of different ways to remove a database or two or more.
 
.PARAMETER SqlInstance
The SQL Server instance holding the databases to be removed.You must have sysadmin access and server version must be SQL Server version 2000 or higher.
 
.PARAMETER SqlCredential
Allows you to login to servers using SQL Logins as opposed to Windows Auth/Integrated/Trusted.
 
$scred = Get-Credential, then pass $scred object to the -SqlCredential parameter.
 
Windows Authentication will be used if SqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials. To connect as a different Windows user, run PowerShell as that user.
 
.PARAMETER Databases
The database name to remove or an array of database names eg $Databases = 'DB1','DB2','DB3'
 
.PARAMETER WhatIf
Shows what would happen if the command were to run. No actions are actually performed.
 
.PARAMETER Confirm
Prompts you for confirmation before executing any changing operations within the command.
 
.PARAMETER Silent
Use this switch to disable any kind of verbose messages
 
.NOTES
Tags: Delete
 
dbatools PowerShell module (https://dbatools.io, clemaire@gmail.com)
Copyright (C) 2016 Chrissy LeMaire
 
.LINK
https://dbatools.io/Remove-DbaDatabase
 
.EXAMPLE
Remove-DbaDatabase -SqlInstance sql2016 -Databases containeddb
 
Prompts then removes the database containeddb on SQL Server sql2016
  
.EXAMPLE
Remove-DbaDatabase -SqlInstance sql2016 -Databases containeddb, mydb
  
Prompts then removes the databases containeddb and mydb on SQL Server sql2016
  
.EXAMPLE
Remove-DbaDatabase -SqlInstance sql2016 -Databases containeddb -Confirm:$false
 
Does not prompt and swiftly removes containeddb on SQL Server sql2016
#>

    [CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = 'Low')]
    Param (
        [parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [Alias("ServerInstance", "SqlServer")]
        [object[]]$SqlInstance,
        [parameter(Mandatory = $false)]
        [object]$SqlCredential,
        [switch]$Silent
    )
    
    DynamicParam { if ($SqlInstance) { return Get-ParamSqlDatabases -SqlServer $SqlInstance[0] -SqlCredential $SqlCredential } }
    
    BEGIN
    {
        $databases = $psboundparameters.Databases
        
        if (-not $databases)
        {
            Stop-Function -Message "You must select one or more databases to drop"
        }
    }
    
    PROCESS
    {
        if (Test-FunctionInterrupt) { return }
        
        foreach ($instance in $SqlInstance)
        {
            try
            {
                Write-Message -Level Verbose -Message "Connecting to $instance"
                $server = Connect-SqlServer -SqlServer $instance -SqlCredential $sqlcredential
            }
            catch
            {
                Stop-Function -Message "Failed to connect to: $instance" -Continue -Target $instance
            }
            
            $databases = $server.Databases | Where-Object { $_.Name -in $databases }
            
            foreach ($db in $databases)
            {
                try
                {
                    if ($Pscmdlet.ShouldProcess("$db on $server", "KillDatabase"))
                    {
                        $server.KillDatabase($db.name)
                        $server.Refresh()
                        
                        [pscustomobject]@{
                            ComputerName = $server.NetName
                            InstanceName = $server.ServiceName
                            SqlInstance = $server.DomainInstanceName
                            Database = $db.name
                            Status = "Dropped"
                        }
                    }
                }
                catch
                {
                    try
                    {
                        if ($Pscmdlet.ShouldProcess("$db on $server", "alter db set single_user with rollback immediate then drop"))
                        {
                            $null = $server.ConnectionContext.ExecuteNonQuery("alter database $db set single_user with rollback immediate; drop database $db")
                            
                            [pscustomobject]@{
                                ComputerName = $server.NetName
                                InstanceName = $server.ServiceName
                                SqlInstance = $server.DomainInstanceName
                                Database = $db.name
                                Status = "Dropped"
                            }
                        }
                    }
                    catch
                    {
                        try
                        {
                            if ($Pscmdlet.ShouldProcess("$db on $server", "SMO drop"))
                            {
                                $server.databases[$dbname].Drop()
                                $server.Refresh()
                                
                                [pscustomobject]@{
                                    ComputerName = $server.NetName
                                    InstanceName = $server.ServiceName
                                    SqlInstance = $server.DomainInstanceName
                                    Database = $db.name
                                    Status = "Dropped"
                                }
                            }
                        }
                        catch
                        {
                            Write-Message -Level Verbose -Message "Could not drop database $db on $server"
                            
                            [pscustomobject]@{
                                ComputerName = $server.NetName
                                InstanceName = $server.ServiceName
                                SqlInstance = $server.DomainInstanceName
                                Database = $db.name
                                Status = $_
                            }
                        }
                    }
                }
            }
        }
    }
}