• 2022-06-06
    查询姓"张"的学生姓名,下列()语句不能实现。
    A: SELECT sname FROM student WHERE left(sname,1)= '张'
    B: SELECT snameFROM student WHERE sname LIKE '张%'
    C: SELECT sname FROM student WHERE substring(sname,1,1)= '张'
    D: SELECT sname FROM student WHERE sname='张%'
  • 举一反三