Cause: A variable or constant was declared to be of a type whose declarati

PLS-00498: illegal use of a type before its declaration

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Answer Posted / guest

Cause: A variable or constant was declared to be of a type
whose declaration appears later in the compilation unit; or,
a type or subtype was declared in terms of another type
whose declaration appears later in the compilation unit.

Action: Ensure that the type declaration preceeds its use in
the variable/ constant/type declaration.

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