Oracle : Ошибка ORA-00821

"Specified value of sga_target %sM is too small, needs to be at least %sM"
*Cause: The specified value of sga_target is too small for the SGA to
accommodate all of the necessary SGA components such as the
log buffer, buffer pools, shared pool, etc.
*Action: Set sga_target to the recommended value or reduce the values
of any SGA component size parameters you have specified.

Попробовать перевести

Поискать эту ошибку на форуме