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Re: Chained Rows VS new extent allocation

From: Jim Kennedy <kennedy-downwithspammersfamily_at_attbi.net>
Date: Tue, 28 Oct 2003 14:59:47 GMT
Message-ID: <Dvvnb.49157$Fm2.24372@attbi_s04>


On insert Oracle will put the row in a block where it fits. So if there is not enough room in a block then it will put it in a new block. If the row is larger than a block then it will chain it because there isn't any choice. Chaining occurs when rows are updated and become too large to fit into a block.
Jim
"Mike" <mbrugo_at_despammed.com> wrote in message news:ch0tpvk2m69eits4m2koib0eokdmo4f8o9_at_4ax.com...
> Hi people,
> does oracle prefer (during an insert) break the record in n parts to
> fit in free space of allocated blocks or allocate a new block to fit
> the entire record ?
>
> Mike
>
Received on Tue Oct 28 2003 - 08:59:47 CST

Original text of this message

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