使用SQL语句将学生表S中年龄（AGE）大于30岁的记录删除，正确的命令是（）
A: DELETE FOR AGE>30
B: DELETE FROM S WHERE AGE>30
C: DELETE S FOR AGE>30
D: DELETE S WHERE AGE>30
A: DELETE FOR AGE>30
B: DELETE FROM S WHERE AGE>30
C: DELETE S FOR AGE>30
D: DELETE S WHERE AGE>30
举一反三
- 使用SOL语句将学生表S中年龄(AGE)大于30岁的记录删除,正确的命令是()。 A: DELETE FOR AGE>30 B: DELETE FROM S WHERE AGE>30 C: DELETE S FOR AGE>30 D: DELETE S WHERE AGE > 3
- 学生表student中，将年龄小于30岁的记录删除，下面的语句正确的是（ ）。 A: DELETE FROM student FOR age<;30 B: DELETE FROM student WHERE age<;30 C: DELETE TABLE student WHERE age<;30 D: DELETE FROM student HAVING age<;30
- 学生表s有4个字段分别为：sno,sname,sex,age，要在表s中删除字段age，可选用的SQL语句是( )。 A: delete age from s; B: alter table s delete age; C: update s age; D: alter table s drop age;
- 从student表删除年龄大于=30的记录的正确SQL命令是( )。 A: DELETE FOR年龄>30 B: DELETE FROM student WHERE年龄>30 C: DELETE student FOR年龄>30 D: DELETE student WHERE年龄>30
- 姓名、性别、年龄。要在表S中删除一个属性“年龄”,可选用的SQL语句是()。 A: UPDATE S Age B: DELETE Age from S C: ALTER TABLE S ‘Age’ D: ALTER TABLE S DROP Age