On 17 Dec 2009, at 4:38pm, Kavita Raghunathan wrote:

> It is an option to merge tables, but the concern there is that the speed of
> lookup maybe compromised?

The speed of lookup will be very small if you have an INDEX which matches what 
the SELECT asks for.  So if, for example your SELECT is

SELECT colA, colB FROM myTable WHERE source='aaa' AND colA='BBBB'

then the TABLE myTable should have an INDEX (perhaps the primary index) which 
is on the two columns

source,colA

For the number of records you quote, this will make the SELECT very fast.

Simon.
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