SELECT DISTINCT 列名稱 FROM 表名稱  

SELECT * FROM Persons WHERE City='Beijing'   //文字要用引號

SELECT * FROM Persons WHERE LastName BETWEEN 'Adams' AND 'Carter'  //[A，C）

SELECT * FROM Persons WHERE City LIKE '[ALN]e%r_'  //萬用字元%和_以及[]，[]

SELECT Company, OrderNumber FROM Orders ORDER BY Company, OrderNumber

SELECT Company, OrderNumber FROM Orders ORDER BY Company DESC

INSERT INTO Persons (LastName, Address) VALUES ('Wilson', 'Champs-Elysees')

UPDATE Person SET Address = 'Zhongshan 23', City = 'Nanjing' WHERE LastName = 'Wilson'

DELETE FROM Person WHERE LastName = 'Wilson' 

SELECT * FROM Persons LIMIT 5

SELECT * FROM Persons WHERE LastName IN ('Adams','Carter')

SELECT Persons.LastName, Persons.FirstName, Orders.OrderNo FROM Persons RIGHT JOIN Orders ON Persons.Id_P=Orders.Id_P ORDER BY Persons.LastName