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Deleting Items by Using a Recordset

Topic Last Modified: 2007-02-16

To delete all items in a folder, you can use a Recordset object's Delete method.

Example

Description

The following example deletes all the items in a folder, except for subfolders that are stipulated by a WHERE clause.

Code

<job id="delete_record">
<reference object="adodb.record"/>

<script language='vbscript'>

Dim Info
Dim InfoNT
Dim sFolderUrl
Dim sQuery
Set Info   = CreateObject("ADSystemInfo")
Set InfoNT = CreateObject("WinNTSystemInfo")

Dim Conn
Set Conn = CreateObject("ADODB.Connection")
Conn.Provider = "ExOLEDB.DataSource"

sFolderUrl = "http://" & InfoNT.Computername & "." & Info.DomainDNSName & "/public/test_folder2/"
Conn.Open sFolderUrl

' Delete all non-folder items from folder.
sQuery = "SELECT * FROM scope('shallow traversal of " & Chr(34) & sFolderUrl & Chr(34) & "')" & _
         " WHERE ""DAV:isfolder"" = FALSE"

Dim cItems
cItems = deleteItemsMatchSQL(sQuery, Conn)
wscript.echo "Deleted " & cItems & " Items from " & sFolderUrl

' Close connection
Conn.Close

Function deleteItemsMatchSQL(sQuery, Conn )

 Dim Rs
 Dim cItems

 Set Rs = CreateObject("ADODB.Recordset")

 With Rs
   .Open sQuery, Conn
   .MoveFirst
   cItems = .RecordCount
   While Not Rs.EOF
   .Delete 1 ' Current record
   .MoveNext
   Wend
   .Close
 End With

 deleteItemsMatchSQL = cItems

End Function
</script>
</job>

Example

#import <msado15.dll> no_namespace
#import <cdoex.dll> no_namespace

void deleteitems(bstr_t url, bstr_t sqlCondition) {

   _RecordsetPtr Rs(__uuidof(Recordset));
   _ConnectionPtr Conn(__uuidof(Connection));
   Conn->Provider = "ExOLEDB.DataSource";

   bstr_t sqlStatement;
   sqlStatement = "select \"DAV:href\" from scope('shallow traversal of \"";
   sqlStatement += url;
   sqlStatement += "\"') ";
   sqlStatement += sqlCondition;

   try {
      Conn->Open(url, bstr_t(), bstr_t(),-1);
      Rs->Open(
               variant_t(sqlStatement),
               variant_t((IDispatch*)Conn, true),
               (CursorTypeEnum)-1,
               (LockTypeEnum) -1,
               -1
               );
   }
   catch(_com_error e) {
      // handle error or throw...
      throw e;
   }

   long numRec = Rs->RecordCount;
   cout << "Record count: " << numRec << endl;
   try {
      Rs->MoveFirst();
      for(long i = 1 ; i <= numRec;  i++ ) {
         Rs->Delete(adAffectCurrent);
         Rs->MoveNext() ;
      }
   }
   catch(_com_error e) {
      cerr << "Error deleting item using Recordset." << endl;
   }

   // Close connection
   Conn->Close();
}