ALTER sqlplus table using "SYSTEM" login
On looking up all the literature available online for altering tables using sqlplus, it is apparent that this has to be done using the "sqlplus / as sysdba" login or the "sqlplus / as sysasm" login. I am actually looking to add new disks to the ASM_DATA diskgroup. I have actively been using the "system" login to work with sqlplus which does not permit me to execute the "ALTER GROUP" command. When I login via sysdba, I get a "Connected to an idle instance", and I am unable to connect to or view my v$asm_diskgroup via that login, so it