column name format a20
column free_mb format 999,999,999
select name,to_char(sysdate,'YYYY-MM-DD HH24:MI') SYSTEM_DATETIME from v$database;
select (select name from v$database) db_name,name diskgroup_name,total_mb,free_mb,round(free_mb/total_mb*100,1) FREE_Uti_PCT from v$asm_diskgroup order by 4;