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;
正确答案:C
答案解析:有
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Which SQL statement returns a numeric value?()
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