PLS-00363: expression string cannot be used as an assignment target

PLS-00363: expression string cannot be used as an assignment target

Cause: A literal, constant, IN parameter, loop counter, or function call was mistakenly used as the target of an assignment. For example, the following statement is illegal because the assignment target, 30, is a literal: SELECT deptno INTO 30 FROM dept WHERE ... -- illegal

Action: Correct the statement by using a valid assignment target.

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