Monday, September 10, 2012

ORA-00843: Parameter not taking MEMORY_MAX_TARGET into account, ORA-00849

ORA-00843: Parameter not taking MEMORY_MAX_TARGET into account
ORA-00849: SGA_TARGET 4512632 cannot be set to more than MEMORY_MAX_TARGET 0.


Don't set memory_target and memory_max_target parameter to 0 (zero) explicitly.

if above error happened, you can do following...

1) Restore old spfile


2) create pfile from parameter value taken from alert log.


3) create pfile from spfile and remove the MEMORY_MAX_TARGET=0 and MEMORY_TARGET=0 lines. After that, use the modified PFILE to create a new SPFILE and start the instance with this new setup.
then use the following commands to remove the explicit setting of MEMORY_TARGET=0 and MEMORY_MAX_TARGET=0:

alter system reset memory_target;
alter system reset memory_max_target;

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