1 --create a table which name is t_hongten_student
 2 create table t_hongten_student(
 3        name varchar(20),
 4        age number(3)
 5 );
 6 
 7 --insert some data into table
 8 insert into t_hongten_student values(‘Hongten‘, 19);
 9 insert into t_hongten_student values(‘红藤‘, 20);
10 insert into t_hongten_student values(‘Hanyuan‘, 18);
11 
12 --query table
13 select * from t_hongten_student;
14 
15 --amend the data
16 update t_hongten_student set name = ‘Meters Bonwe‘, age = 23 where name = ‘Hanyuan‘ and age = 18;
17 
18 select * from t_hongten_student;
19 
20 --delete the data
21 delete from t_hongten_student where name = ‘红藤‘ and age = 20;
22 
23 --delete the table
24 drop table t_hongten_student;