PLS Database Error Messages

PLS-00358: column ‘string’ exists in more than one table; use qualifier

oracle

PLS-00358: column 'string' exists in more than one table; use qualifier
Cause: The statement is ambiguous because it specifies two or more tables having the same column name. For example, the following statement is ambiguous because deptno is a column in both tables: 

SELECT deptno, loc INTO my_deptno, my_loc FROM emp, dept;
Action: Precede the column name with the table name (as in emp.deptno) so that the column reference is unambiguous.

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