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PowerShell Script to export data from Active Directory

I was asked to assist a vendor who was working with our Unix/Oracle team. He was trying to import data from Active Directory into an Oracle database.


I’m no expert on Oracle, but it appears that the LDAP connector simply returned blobs of data, this then had to be parsed, but there seems to be no order to the data returned. The was before we starting looking at converting the objectGUID or seeing if we’d hit the 1000 record AD limit (which SQL Server suffers from).


I’d recently been on a PowerShell course delivered by Microsoft, so I thought I’d write a quick script to export the data. In this case, we output the result to a CSV file, but it is possible to update the database directly. Anyway, here’s the script we used:


# LDAP path to start search from
$RootOU = "LDAP://OU=Regional Accounts,OU=User Accounts,DC=domain,DC=net"

# CSV path
$CSVpath = "C:\TEMP\ADusers.csv"

$search = New-Object DirectoryServices.DirectorySearcher([ADSI]$RootOU)
$Search.PageSize = 1000
$search.filter = “(&(objectCategory=person)(objectClass=user))"
$results = $search.FindAll()

$myData = @()
foreach($result in $results){
   $User = $result.GetDirectoryEntry()
   $myData += ( $User | Select-Object -Property @{Name="objectGUID";Expression={($_.objectGUID | foreach { $ofs="" } { "{0:X2}" -f $_})}},
$myData | Export-csv -path $CSVpath -notype

# Or, you can output to a grid
#$myData | Out-GridView
Categories: Accounts, PowerShell
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