Updating a huge hash partitioned table.

From: Reddy, Madhusudana <Madhusudana.Reddy_at_bestbuy.com>
Date: Thu, 30 Jan 2003 10:04:56 -0800
Message-ID: <F001.0053F1F8.20030130100456@fatcity.com>

Hello All,
I have a requirement to update a table which is hash partitioned and having a local prefixed index with keys (STORE,  SKU, ACTION_DATE, TRAN_TYPE) . I have to update only one column called 'WH' to a new value where store=store#, wh= 0 and tran_type = -1. Explain plan shows me FULL TABLE access.
Sample query would be like this

Update < table_name >
set wh=-1
where store=<store_no>

and     wh=<old_value>
and     tran_type=<value>

Any suggestions to have better performance ??

Thanks in advance,
Madhu

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Author: Reddy, Madhusudana
  INET: Madhusudana.Reddy_at_bestbuy.com

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