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Get dba db sequence #7296

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merged 5 commits into from
May 14, 2021
Merged

Get dba db sequence #7296

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4c242e7
multi schemas, names, non required name
MikeyBronowski May 7, 2021
8f8cfab
output SqlInstance
MikeyBronowski May 7, 2021
f44a51d
Database is no longer required -check whole server
MikeyBronowski May 7, 2021
8bdb041
tests
MikeyBronowski May 7, 2021
5692a8d
examples
MikeyBronowski May 7, 2021
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67 changes: 53 additions & 14 deletions functions/Get-DbaDbSequence.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -60,36 +60,75 @@ function Get-DbaDbSequence {
PS C:\> Get-DbaDatabase -SqlInstance sqldev01 -Database TestDB | Get-DbaDbSequence -Name TestSequence -Schema TestSchema

Using a pipeline this command finds the sequence named TestSchema.TestSequence in the TestDB database on the sqldev01 instance.

.EXAMPLE
PS C:\> Get-DbaDbSequence -SqlInstance localhost

Finds all the sequences on the localhost instance.

.EXAMPLE
PS C:\> Get-DbaDbSequence -SqlInstance localhost -Database db

Finds all the sequences in the db database on the localhost instance.

.EXAMPLE
PS C:\> Get-DbaDbSequence -SqlInstance localhost -Name seq

Finds all the sequences named seq on the localhost instance.

.EXAMPLE
PS C:\> Get-DbaDbSequence -SqlInstance localhost -Schema sch

Finds all the sequences in the sch schema on the localhost instance.

#>
[CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'Low')]
param (
[DbaInstanceParameter[]]$SqlInstance,
[parameter(ValueFromPipeline)]
[DbaInstance[]]$SqlInstance,
[PSCredential]$SqlCredential,
[string[]]$Database,
[Parameter(Mandatory)]
[string]$Name,
[string]$Schema = 'dbo',
[string[]]$Name,
[string[]]$Schema,
[parameter(ValueFromPipeline)]
[Microsoft.SqlServer.Management.Smo.Database[]]$InputObject,
[switch]$EnableException
)
process {

if ((Test-Bound -ParameterName SqlInstance) -and (Test-Bound -Not -ParameterName Database)) {
Stop-Function -Message "Database is required when SqlInstance is specified"
if (-not $InputObject -and -not $SqlInstance) {
Stop-Function -Message "You must pipe in a database or specify a SqlInstance"
return
}

# caller specified the instance info
foreach ($instance in $SqlInstance) {
foreach ($db in (Get-DbaDatabase -SqlInstance $instance -SqlCredential $SqlCredential -Database $Database)) {
$db.Sequences | Where-Object { $_.Schema -eq $Schema -and $_.Name -eq $Name }
}
if ($SqlInstance) {
$InputObject += Get-DbaDatabase -SqlInstance $SqlInstance -SqlCredential $SqlCredential -Database $Database -ExcludeDatabase $ExcludeDatabase
}

# caller has piped in one or more databases
foreach ($db in $InputObject) {
$db.Sequences | Where-Object { $_.Schema -eq $Schema -and $_.Name -eq $Name }
if ($db.IsAccessible -eq $false) {
continue
}
$server = $db.Parent
Write-Message -Level 'Verbose' -Message "Getting Database Sequences for $db on $server"

$dbSequences = $db.Sequences

if ($Name) {
$dbSequences = $dbSequences | Where-Object { $_.Name -in $Name }
}

if ($Schema) {
$dbSequences = $dbSequences | Where-Object { $_.Schema -in $Schema }
}

foreach ($dbSequence in $dbSequences) {
Add-Member -Force -InputObject $dbSequence -MemberType NoteProperty -Name ComputerName -Value $server.ComputerName
Add-Member -Force -InputObject $dbSequence -MemberType NoteProperty -Name InstanceName -Value $server.ServiceName
Add-Member -Force -InputObject $dbSequence -MemberType NoteProperty -Name SqlInstance -Value $server.DomainInstanceName
Add-Member -Force -InputObject $dbSequence -MemberType NoteProperty -Name Database -Value $db.Name

Select-DefaultView -InputObject $dbSequence -Property "ComputerName", "InstanceName", "SqlInstance", "Database", "Schema", "Name", "DataType", "StartValue", "IncrementValue"
}
}
}
}
57 changes: 47 additions & 10 deletions tests/Get-DbaDbSequence.Tests.ps1
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Expand Up @@ -19,28 +19,65 @@ Describe "$CommandName Integration Tests" -Tag "IntegrationTests" {
$instance2 = Connect-DbaInstance -SqlInstance $script:instance2
$null = Get-DbaProcess -SqlInstance $instance2 | Where-Object Program -match dbatools | Stop-DbaProcess -Confirm:$false
$newDbName = "dbatoolsci_newdb_$random"
$newDb = New-DbaDatabase -SqlInstance $instance2 -Name $newDbName
$newDbName2 = "dbatoolsci_newdb2_$random"
$newDb, $newDb2 = New-DbaDatabase -SqlInstance $instance2 -Name $newDbName, $newDbName2

$sequence = New-DbaDbSequence -SqlInstance $instance2 -Database $newDbName -Name "Sequence1_$random" -Schema "Schema_$random"
$sequence2 = New-DbaDbSequence -SqlInstance $instance2 -Database $newDbName -Name "Sequence2_$random" -Schema "Schema2_$random"
$sequence3 = New-DbaDbSequence -SqlInstance $instance2 -Database $newDbName -Name "Sequence1_$random" -Schema "Schema2_$random"
$sequence4 = New-DbaDbSequence -SqlInstance $instance2 -Database $newDbName -Name "Sequence2_$random" -Schema "Schema_$random"
$sequence5 = New-DbaDbSequence -SqlInstance $instance2 -Database $newDbName2 -Name "Sequence1_$random" -Schema "Schema_$random"
}

AfterAll {
$null = $newDb | Remove-DbaDatabase -Confirm:$false
$null = $newDb, $newDb2 | Remove-DbaDatabase -Confirm:$false
}

Context "commands work as expected" {

It "validates required Database param" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2 -Name SequenceTest -ErrorVariable error
$sequence | Should -BeNullOrEmpty
$error | Should -Match "Database is required when SqlInstance is specified"
It "finds a sequence on an instance" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2
$sequence.Count | Should -Be 5
}

It "finds a sequence" {
It "finds a sequence in a single database" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2 -Database $newDbName
$sequence.Parent.Name | Select-Object -Unique | Should -Be $newDbName
$sequence.Count | Should -Be 4
}

It "finds a sequence in a single database by schema only" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2 -Database $newDbName -Schema "Schema2_$random"
$sequence.Parent.Name | Select-Object -Unique | Should -Be $newDbName
$sequence.Schema | Select-Object -Unique | Should -Be "Schema2_$random"
$sequence.Count | Should -Be 2
}

It "finds a sequence in a single database by schema and by name" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2 -Database $newDbName -Name "Sequence1_$random" -Schema "Schema_$random"
$sequence.Name | Should -Be "Sequence1_$random"
$sequence.Schema | Should -Be "Schema_$random"
$sequence.Parent.Name | Should -Be $newDbName
$sequence.Parent.Name | Select-Object -Unique | Should -Be $newDbName
$sequence.Name | Select-Object -Unique | Should -Be "Sequence1_$random"
$sequence.Schema | Select-Object -Unique | Should -Be "Schema_$random"
$sequence.Count | Should -Be 1
}

It "finds a sequence on an instance by name only" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2 -Name "Sequence1_$random"
$sequence.Name | Select-Object -Unique | Should -Be "Sequence1_$random"
$sequence.Count | Should -Be 3
}

It "finds a sequence on an instance by schema only" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2 -Schema "Schema2_$random"
$sequence.Schema | Select-Object -Unique | Should -Be "Schema2_$random"
$sequence.Count | Should -Be 2
}

It "finds a sequence on an instance by schema and name" {
$sequence = Get-DbaDbSequence -SqlInstance $instance2 -Schema "Schema_$random" -Name "Sequence1_$random"
$sequence.Schema | Select-Object -Unique | Should -Be "Schema_$random"
$sequence.Name | Select-Object -Unique | Should -Be "Sequence1_$random"
$sequence.Count | Should -Be 2
}

It "supports piping databases" {
Expand Down