高级语言有变量vSname,vSage,vSpecname。若要从数据库中取出对应值赋给高级语言中的变量,下列表达正确的是_______。
A.
exec sql select Sname ,Sage into vSname,vSage from student where Sname=vSpecname
B.
exec sql select Sname ,Sage into :vSname,:vSage from student where Sname=:vSpecname
C.
select Sname ,Sage into :vSname,:vSage from student where Sname=:vSpecname
D.
exec sql :vSname,:vSage from student where Sname=:vSpecname