数据开发工程师需要将custumer表中sex字段中的男标记为‘M,女标记为'F',可以使用下列哪些函数实现?
A. CASE WHEN
B. IF
CAST
DECODE
在student表中显示所有姓马的学生的姓名、生日和Email。下列语句可以实现的是?
A. select same, birthdate, emailfrom student where sname like '5% "
B. select sname, birthdate, emailfrom student where same like 'E.* ‘
C. select sname, birthdate, emailfrom student where same like "%";
D. select sname, birthdate, emailfrom student where same = **":