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Access Record Ranking by Group and Percent

dhemple asked
Last Modified: 2014-05-01
Hello Experts

I need your help with an update query that will populate the Mkt Share Ranking column in the example below.  Highest market share would get a ranking of 1, the next highest a ranking of 2, etc.

Thank you.

GroupId      Mkt Share Percent      Mkt Share Ranking
a1567      32%      2
a1567      10%      3
a1567      58%      1
b4382      12%      3
b4382      25%      2
b4382      63%      1
c9253      15%      3
c9253      12%      4
c9253      27%      2
c9253      46%      1
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