type type_name is table of varchar2(30) index by
binary_integer
for the above type you have to create a identifier...
like
identifier_name type_name;
for the above type you can use the below methods..like
first , last , prior, next , delege..etc...like this..
if you create a cursor...like
cursor cursor_name is select * from scott.emp;
is there any methods like above to use prior, fist , last ,
next , trim ,etc...
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