Oracle Message ORA-00823 - Specified value of sga_target greater than sga_max_size

ERRORSpecified value of sga_target greater than sga_max_size
CAUSEThe specified value of sga_target is greater than sga_max_size.
ACTIONIncrease sga_max_size to match up with sga_target or decrease sga_target to match up with sga_maxsize.