Answer / guest

Cause: A cursor was declared with a SELECT statement that
contains duplicate column names. Such references are ambiguous.

Action: Replace the duplicate column name in the select list
with an alias.

Please add more information about this Error

Answer / chimbu

Remove the same column name in cusor query.

ex:

select a1,a2,a1 from table1;

Here their are two columns named a1.

Remove it and you wont get the error

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