Answer / guest

Cause: While looking for prior declarations of a variable or
constant, the compiler found another object with the same
name in the same scope. Or, the headers of subprogram in a
package specification and body are not identical.

Action: Check the spelling of the variable or constant name.
Also check the names of all parameters and exceptions
declared in the same scope. Then, remove or rename the
object with the duplicate name. Or, change the headers of
the packaged subprogram in the package specification or body
so that they are identical.

Please add more information about this Error

ORA-12407: unauthorized operation for policy string

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