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

--建立一個新使用者

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

createuserhahaya

identifiedbyhahaya

defaulttablespaceusers

temporarytablespacetemp;

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

--給hahaya使用者授權

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

grantdba,sysdbatohahaya

withadminoption;

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

--建立一個表

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

createtablehahaya.book_book(

book_idintnotnull,

book_namevarchar2(200),

book_priceint,

primarykey(book_id)

);

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

--向表中插入資料

--使用第二中方式的時候提供的值一定要和表的欄位個數相等

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

insertintohahaya.book_book(book_id,book_name,book_price)values(1,'thinkinginc++',80);

insertintohahaya.book_bookvalues(2,'TheC++ProgrammingLanguage',100);

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

--查詢表中資料

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

select*fromhahaya.book_book;

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

--更改表中某行資料

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

updatehahaya.book_booksetbook_price=90

wherebook_id=2;

select*fromhahaya.book_book;

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

--刪除表中某行資料

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

deletefromhahaya.book_bookwherebook_id=2;

select*fromhahaya.book_book;