You have statistics collected for some selected tables. Your requirement is that the statistics for the tables and all dependent indexes must not be overwritten by further statistics collection until a certain point of time.
How would you achieve this?
A.
Lock statistics for the tables.
B.
Change STALE_PERCENT to zero for the tables.
C.
Set the TIMED_STATISTICS parameter to TRUE.
D.
Set the STATISTICS_LEVEL parameter to BASIC.
E.
Set the OPTIMIZER_USE_PENDING parameter statistics to TRUE.