如果要插入一条员工数据,则下列选项正确的是()
A. INSERT INTO Employee(Name,Gender,Age,Rank) VALUES('张朝阳','男',48,'201')
B. INSERT INTO Employee(Name,Gender,Age,Rank) VALUES('张朝阳' ,48,'201')
C. INSERT INTO Employee(Name,Gender,Rank) VALUES('张朝阳','男',48,'201')
D. INSERT INTO Employee(Name,Gender,Age,Rank) VALUES(张朝阳,男,48,201)
下列查询中,为查询字段起别名的语句不正确的是()
A. select Sno,Sname,2020-Sage '出生年份' from student
B. select Sno,Sname, 2020-Sage as '出生年份' from student
C. selectSno,Sname,'出生年份'2020-Sage from student
D. selectSno,Sname,2020-Sage from student