hi am geting this error in database 12c in solaris i did this
Enter user-name: /as sysdba
Connected to an idle instance.
SQL> startup
ORA-00838: Specified value of MEMORY_TARGET is too small, needs to be at least 5243264M
SQL> create pfile from spfile;
File created.
SQL> startup
ORA-00838: Specified value of MEMORY_TARGET is too small, needs to be at least 5243264M