I tried to solve this issue , but it stil there . Could you help me to solve it?
insert into diskgroup_size ( type1 , name , total_mb , used )
VALUES ( SELECT 'BANK', name, total_mb, (total_mb-free_mb) as "USED"
from v$asm_diskgroup_stat@T24PRD ) ;
Note : When I use select Statement without insert , I get all data .