how to write this sql?

From: Guang Mei <gmei_at_incyte.com>
Date: Mon, 19 Jul 2004 15:49:41 -0400
Message-ID: <NJEDKDKJDGAKAEKKNEEJGENHDGAA.gmei@incyte.com>

Oracle 8173.

I have a query like this:

select x, count(1) cnt from ABC group by x;

which shows:

         X CNT
---------- ----------

         1         25
         2         18
         6        156
         7        529
         8         43
         9        355

What I want is

         X CNT
---------- ----------

         1         25
         2         18
         6        100
         7        100
         8         43
         9        100

This means any count > 100 will be replaced with value 100. I have no problem of displaying this. What I would like to have is to let oracle know that when the count reaches 100, stop counting for that x. This way oracle does not need to keep scan after cnt reaches 100, hopefully saving some time. (somehow it is similar to adding rownum=1 to let oracle stop when certain condition is met).

Is it possible to add something to the query to accomplish this?

TIA. Guang

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Received on Mon Jul 19 2004 - 14:47:43 CDT