Numeric loop will ignore the externally scoped variable and create a new locally scoped variable.

    

SQL> BEGIN
  2    FOR i IN 1..10 LOOP
  3      dbms_output.put_line('The index value is ['||i||']');
  4    END LOOP;
  5  END;
  6  /
The index value is [1]
The index value is [2]
The index value is [3]
The index value is [4]
The index value is [5]
The index value is [6]
The index value is [7]
The index value is [8]
The index value is [9]
The index value is [10]

PL/SQL procedure successfully completed.

SQL>
SQL>

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Numeric loop will ignore the externally scoped variable and create a new locally scoped variable. : For Loop « PL SQL « Oracle PL / SQL

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