A.SELECT*FROM学生WHERE出生日期={1985-10-27} B.SELECT*FROM学生WHERE出生日期=1985-10-27 C.SELECT*FROM学生WHERE出生日期="1985-10-27" D.SELECT*FROM学生WHERE出生日期=’1985-10-27’
A.INNER JOIN B.LEFT OUTER JOIN C.RIGHT OUTER JOIN D.FULL OUTER JOIN
A.GROUP BY B.ORDER BY C.WHERE D.INNER JOIN