Oracle添加注释

// 创建一个表
CREATE TABLE Car
(
GUID NUMBER NOT NULL PRIMARY KEY,
PhoneId Char(11) NOT NULL,
UserName VarChar(20) NOT NULL
);

// 添加注释
comment on table car is '定位信息用户表';
Comment on column car.guid is '自增字段';
Comment on column Car.PhoneId is '电话唯一标识';
Comment on column Car.UserName is '用户名称';