Is this an OLTP instance? If it is not, you may try with
OPTIMIZER_DYNAMIC_SAMPLING=11. If that is an OLTP instance, using
dynamic sampling will increase parsing time and lower the performance,
albeit not drastically.
On 10/27/20 11:31 AM, Laurentiu Oprea wrote:
Hello,
I found a query with a very bad execution plan due to low cardinality evaluation of below where clause
where
sysdate between trunc(col_from_date) and trunc(nvl(col_to_date,sysdate+1))
Is there any way I can improve the estimate (like extended stats, etc) ?
Thanks for your help.
