教师信息表（Teacher）
1 -- Create table 2 create table TEACHER 3 ( 4 tno VARCHAR2(3) not null, 5 tname VARCHAR2(4) not null, 6 tsex VARCHAR2(2) not null, 7 tbirthday DATE, 8 prof VARCHAR2(6), 9 depart VARCHAR2(10) not null 10 ) 11 tablespace TEST 12 pctfree 10 13 initrans 1 14 maxtrans 255 15 storage 16 ( 17 initial 64K 18 next 1M 19 minextents 1 20 maxextents unlimited 21 ); 22 -- Add comments to the table 23 comment on table TEACHER 24 is '教师表'; 25 -- Add comments to the columns 26 comment on column TEACHER.tno 27 is '教工编号（主键）'; 28 comment on column TEACHER.tname 29 is '教工姓名'; 30 comment on column TEACHER.tsex 31 is '教工性别'; 32 comment on column TEACHER.tbirthday 33 is '教工出生年月'; 34 comment on column TEACHER.prof 35 is '职称'; 36 comment on column TEACHER.depart 37 is '教工所在部门';
结果：
