新用户的创建、表的创建及增删改查(Oracle)

--------------------------------- --创建一个新用户 --------------------------------- create user hahaya identified by ha

---------------------------------

--创建一个新用户

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create user hahaya

identified by hahaya

default tablespace users

temporary tablespace temp;

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--

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grant dba, sysdba to hahaya

with admin option;

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--创建一个表

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create table hahaya.book_book(

book_id int not null,

book_name varchar2(200),

book_price int,

primary key(book_id)

);

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--向表中插入数据

--使用第二中方式的时候提供的值一定要和表的字段个数相等

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insert into hahaya.book_book(book_id, book_name, book_price) values(1, 'thinking in c++', 80);

insert into hahaya.book_book values(2, 'The C++ Programming Language', 100);

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--查询表中数据

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select * from hahaya.book_book;

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--更改表中某行数据

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update hahaya.book_book set book_price=90

where book_id=2;

select * from hahaya.book_book;

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--删除表中某行数据

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delete from hahaya.book_book where book_id=2;

select * from hahaya.book_book;

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