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List:       python-db-sig
Subject:    [DB-SIG] Re: Scrollable cursors
From:       adustman () comstar ! net (Andy Dustman)
Date:       2000-03-13 20:54:24
Message-ID: Pine.LNX.4.10.10003131542050.31507-100000 () kenny ! comstar ! net
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On Mon, 13 Mar 2000, Andy Dustman wrote:

> cursor.seek(n) -- scrolls the cursor to row n, with the first row being 0.
> If the database does not support seekable cursors, this method should not
> be defined. If database cannot support seeking under current conditions,
> it should raise NotSupportedError. (Similar to the cursor.rollback()
> language)

In actually writing the code, I would amend this to:

cursor.seek(n, whence=0) -- if whence=0, scrolls the cursor to absolute
row n, else perform a relative scroll. There are some difficulties in
doing the relative scroll, but I hope I can get around them.

-- 
andy dustman       |     programmer/analyst     |      comstar.net, inc.
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