数据库oracle建表/insert/改表名称

1，更改表名称： alter table student rename column student to student_name;

2，在表中插入新的数据，使用语法insert: insert into stdent (ID, STUDENT, TEACHER_ID)values (6, 'xiaosun', '5');

3，修改字段名称：   alter table teacher rename column student_name to teacher_name;

4，在表中增加一个字段：alter table STUDENT add (age varchar2(30) default 3 not null);表名是STUDENT 

5，建表语句：CREATE TABLE t_book (
  id  varchar(20) CONSTRAINT PK_DEPT PRIMARY KEY,
  bookName varchar(20) DEFAULT  '',
  price decimal(6,2) DEFAULT '',
  author varchar(20) DEFAULT '',
  bookTypeId varchar(20) DEFAULT '' 

)

6，SQL模糊查询：SELECT * FROM t_s_type   WHERE typename LIKE '%中国%'