There is a very strict constraint on
being able to update join views. This
hint allows Oracle to bypass this
constraint. I interpret the name as
'bypass updatable join view check'.
--
Jonathan Lewis
Yet another Oracle-related web site: http://www.jlcomp.demon.co.uk
Practical Oracle 8i: Building Efficient Databases
Publishers: Addison-Wesley
Reviews at: http://www.jlcomp.demon.co.uk/book_rev.html
John Darrah wrote in message
<9BAAB192E5938F448EDF31E326507DD2095354_at_DENS600>...
>Does anyone know what this hint does? I saw it in the 9i technical white
>papers on Technet. I cannot find anything on it in the Oracle Docs and am
>curious as to what it actually does. Here is the context it was in:
>
>UPDATE /*+ BYPASS_UJVC */
>(SELECT
>S.TIME_ID ,S.STORE_ID ,S.REGION_ID
>,S.PARTS s_parts ,S.SALES_AMT s_sales_amt ,S.TAX_AMT s_tax_amt ,S.DISCOUNT
>s_discount
>,D.PARTS d_parts ,D.SALES_AMT d_sales_amt ,D.TAX_AMT d_tax_amt ,D.DISCOUNT
>d_discount
>FROM SALES_NOV99 S, SALES_FACT D
>WHERE D.TIME_ID = S.TIME_ID
>AND D.STORE_ID = S.STORE_ID
>AND D.REGION_ID = S.REGION_ID) JV
>SET d_parts = d_parts + s_parts
>, d_sales_amt = d_sales_amt + s_sales_amt
>, d_tax_amt = d_tax_amt + s_tax_amt., d_discount = d_discount + s_discount
>;
>
>
>--
>Posted from [63.83.225.245]
>via Mailgate.ORG Server - http://www.Mailgate.ORG
Received on Tue May 22 2001 - 15:14:49 CDT
