Message Oracle PLS-00359 - assignment target in string must have components

ERRORassignment target in string must have components
CAUSEAn assignment target was declared that lacks the components needed to store the assigned values. For example, this error occurs if you try to assign a row of column values to a variable instead of a record, as follows: DECLARE dept_rec dept%ROWTYPE; my_deptno dept.deptno%TYPE; ... BEGIN SELECT deptno, dname, loc INTO my_deptno -- invalid FROM dept WHERE ...
ACTIONCheck the spelling of the names of the assignment target and all its components. Make sure the assignment target is declared with the required components and that the declaration is placed correctly in the block structure.