Micha Nelissen escreveu:
On Sat, 01 Apr 2006 18:06:31 +0200
Joost van der Sluis <[EMAIL PROTECTED]> wrote:
Further I have a question: now sqldb uses a linked-list record buffer,
the RecordCount and RecNo properties are something strange.
What should I do with recordcount? I can add a counter which keep track
of the recordcount. Ie: it does inc(recordcount) if a record is
appended.
Keep a counter.
Or I can do a real count of the records, each time recordcount is
called.
No, too slow.
And what about recno? Just define it as -1, or do a quick count to get
the current record number?
Take a look at TCustomSqliteDataset implementation. In its
implementation a count is done each time.
Store the recno with/in the linked list entry ?
It has two drawbacks: increase memory usage and when inserting, deleting
all following records must be updated.
Luiz
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