procedure TConvertForm.CopyTable(FromDir, SrcTblName, ToDir, DestTblName: String);
 var
   DBHandle: HDBIDB;
   ResultCode: DBIResult;
   Src, Dest, Err: Array[0..255] of Char;
   SrcTbl, DestTbl: TTable;
 begin
   SrcTbl := TTable.Create(Application);
   DestTbl := TTable.Create(Application);
   try
     SrcTbl.DatabaseName := FromDir;
     SrcTbl.TableName := SrcTblName;
     SrcTbl.Open;
     DBHandle := SrcTbl.DBHandle;
     SrcTbl.Close;
     ResultCode := DbiCopyTable(DBHandle,false,
       StrPCopy(Src,FromDir + '\' + SrcTblName), nil,
       StrPCopy(Dest,ToDir + '\' + DestTblName));
     if ResultCode <> DBIERR_NONE then
     begin
       DbiGetErrorString(ResultCode,Err);
       raise EDatabaseError.Create('While copying ' +
         FromDir + '\' + SrcTblName + ' to ' +
         ToDir + '\' +  DestTblName + ', the '
         + ' database engine   generated the error '''
         + StrPas(Err) + '''');
     end;
   finally
     SrcTbl.Free;
     DestTbl.Free;
   end;
 end;
 
 procedure TConvertForm.DeleteTable(Dir, TblName: String);
 var
   DBHandle: HDBIDB;
   ResultCode: DBIResult;
   tbl, Err: Array[0..255] of Char;
   SrcTbl, DestTbl: TTable;
 begin
   SrcTbl := TTable.Create(Application);
   try
     SrcTbl.DatabaseName := Dir;
     SrcTbl.TableName := TblName;
     SrcTbl.Open;
     DBHandle := SrcTbl.DBHandle;
     SrcTbl.Close;
     ResultCode := DbiDeleteTable(DBHandle,
       StrPCopy(Tbl,Dir + '\' + TblName), nil);
     if ResultCode <> DBIERR_NONE then
     begin
       DbiGetErrorString(ResultCode,Err);
       raise EDatabaseError.Create('While deleting ' +
         Dir + '\' + TblName + ', the database ' +
         'engine generated the error ''' + StrPas(Err) + '''');
     end;
   finally
     SrcTbl.Free;
   end;
 end;