PowerShell:基于SQL数据集创建和删除文件夹
我正在尝试编写一个PowerShell脚本,该脚本将执行以下操作:PowerShell:基于SQL数据集创建和删除文件夹,powershell,Powershell,我正在尝试编写一个PowerShell脚本,该脚本将执行以下操作: 执行存储过程或运行返回值列表的t-SQL命令 将步骤1中的数据与现有文件目录结构进行比较 为步骤1中不在现有目录结构中的值创建目录 删除现有目录结构中不在步骤1中的值的目录 我已经使用SSIS构建了一个类似的流程,但我想尝试将其移动到PowerShell脚本中,因为我怀疑它的性能会比我当前的SSIS包好得多。我最终自己找到了答案,下面列出了代码 如果有人能发布一种更快的方法来删除丢失的文件夹,而不必遍历每个文件夹的数据集,那就太
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server = ServerName; Database = DatabaseName; Integrated Security = True"
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = "SELECT DISTINCT folder = CONVERT(VARCHAR(MAX), id) FROM Some.Table (NOLOCK);"
$SqlCmd.Connection = $SqlConnection
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $SqlCmd
$DataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($DataSet)
$SqlConnection.Close()
$RootDirectory = "\\Some\Root\Directory\Over\There\"
# Delete folders if they shouldn't exist.
$RootDirectoryChildItems = Get-ChildItem $RootDirectory
foreach ($i in $RootDirectoryChildItems)
{
$Matched = 0
$TargetDirectory = $RootDirectory + $i.Name
$DataSetTableRows = $DataSet.Tables[0].Rows
foreach ($Row in $DataSetTableRows)
{
if ($Row.folder -eq $i.Name)
{
$Matched = 1
}
}
if ($Matched -eq 0)
{
Write-Output 'Deleted folder' $TargetDirectory; Remove-Item $TargetDirectory -Recurse | Out-Null
}
}
# Create folders if they don't exist.
$DataSetTableRows = $DataSet.Tables[0].Rows
foreach ($Row in $DataSetTableRows)
{
$TargetDirectory = $RootDirectory + $Row.folder
if (!(Test-Path $TargetDirectory))
{
Write-Output 'Created folder' $TargetDirectory '.'; New-Item $TargetDirectory -type directory | Out-Null
}
}
我可能会基于dir和存储过程结果构建几个集合,并将它们与compare对象进行比较。结果上的“SideIndicator”字段应该告诉您需要做什么。我在周五自己解决了这个问题,并添加了问题的答案