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Which SQL statement returns a numeric value?

Updated Jun 06, 2019

Q. Which SQL statement returns a numeric value?

A. SELECT ADD_MONTHS(MAX(hire_Date), 6) FROM EMP;

B. SELECT ROUND(hire_date)FROM EMP;

C. SELECT sysdate-hire_date FROM EMP;

D. SELECT TO_NUMBER(hire_date + 7)FROM EMP;

Answer: C