i want to ask you when i execute the following sql statement
SELECT account_identifier,least(to_number(part_1)),least (to_number(part_2)) FROM TEST5 ;
i get the following error
ORA-01722: invalid number
01722. 00000 - "invalid number"
you should know that when i execute the following sql statement
SELECT account_identifier,to_number(part_1),to_number(part_2) FROM TEST5 ;
it works fine