试题详情
- 单项选择题 The EMP table contains these columns: EMPLOYEE_ID NUMBER(4) EMPNAME VARCHAR2 (25) SALARY NUMBER(9,2) HIRE_DATE DATE You query the database with this SQL statement: SELECT empname,hire_date HIREDATE, salary FROM EMP ORDER BY hire_date; How will the results be sorted?（）
A、randomly
B、ascending by date
C、descending by date
D、ascending alphabetically
E、descending alphabetically
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