PLS-00493: invalid reference to a server-side object or function in a local context

Cause: A reference to a server-side object (for example, a table column) or function (a group function such as SUM, AVG, MIN, MAX, ... ) was found in a context where only PL/SQL objects may be present, such as within the parameter list of a local function or as the index of a (local) PL/SQL table.

Action: Rewrite the offending statement; or, if a local function call is the problem context, make the function non-local (either packaged or top-level).

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