统计信息技术系学生总人数,所使用的语法命令为()
A、select *from student
B、select count(*) from student
C、select count(*) from student where depart=’信息技术系’
D、select count(*) from student where depart is’信息技术系’
发布时间:2024-12-18 18:18:45
A、select *from student
B、select count(*) from student
C、select count(*) from student where depart=’信息技术系’
D、select count(*) from student where depart is’信息技术系’