On 02/11/2012 17:59, Dave Thayer wrote:
On Fri, Nov 2, 2012 at 10:49 AM, Alan Bourke <alanpbou...@fastmail.fm> wrote:
Let's say I have a table, and there are a number of candidate records
that I could potentially include in a particular process, then flag them
as processed so they do not get included again.
However, due to constraints I can only take a subset of those candidate
records at a time.
Using a SQL-Select, how would I retrieve a random subset of the records?
How about something like:
SELECT TOP n RAND(), other_columns... FROM your_table ORDER BY 1
to get n samples.
dt
or (?) maybe:
SELECT TOP n from ( SELECT RAND(), other_columns... FROM your_table ORDER BY 1
)
AndyD 8-)#
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