editing record moves to the last in TClientDataSet

Editing a record in a TClientDataSet, causes it to move to the last. It should keep the current position!!!

(* edit recond n.10 *)
 Table3.RecNo:=10;
 Table3.Edit;
 Table3.Fields[1].AsInteger:=Random(100);
 Table3.Post;

(* close and reopen the table *)
 Table3.Close;
 Table3.Open;
(* now the 10th record moved to last!!!! *)
gianlucaAsked:
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mokuleCommented:
You need to have an index which will force desired order.
Another solution is to replace table with query in which You'll set some sort order.
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gianlucaAuthor Commented:
An index will affect the speed ?? I think it will slow Editing and Appending the records....
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mokuleCommented:
Generally an index is added for raising speed and maintaining desireed order.
Some slow down while adding is the cost. In most cases it is a fracton of advantages.
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Tomas Helgi JohannssonCommented:
    Hi!
Adding an index optimal to a sertain query speeds the retrieval of
the data. Same goes for a table objects.
If space allocations for the index is well designed then adding an insert
will have minimal affects on update and insert to the table.

Regards,
  Tomas Helgi
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