mysql脚本

基础：装了linux环境的mysql数据库 ，而且建了menagerie的数据库

运行命令: mysql  < /var/lib/mysql/menagerie/file_cmd  -t -vvv

file_cmd文件中的内容

use menagerie



#drop the shop table if it exists, then recreate it

DROP TABLE IF EXISTS shop;



CREATE TABLE shop (

article INT(4) UNSIGNED ZEROFILL DEFAULT '0000' NOT NULL,

dealer  CHAR(20)                 DEFAULT ''     NOT NULL,

price   DOUBLE(16,2)             DEFAULT '0.00' NOT NULL,

PRIMARY KEY(article, dealer));



INSERT INTO shop VALUES

(1,'A',3.45),(1,'B',3.99),(2,'A',10.99),(3,'B',1.45),

(3,'C',1.69),(3,'D',1.25),(4,'D',19.95);



select * from shop;



SELECT MAX(article) AS article FROM shop;



SELECT article, dealer, price

FROM   shop

WHERE  price=(SELECT MAX(price) FROM shop);



SELECT article, dealer, price

FROM shop

ORDER BY price DESC

LIMIT 1;



SELECT article, MAX(price) AS price

FROM   shop

GROUP BY article;



SELECT @min_price:=MIN(price),@max_price:=MAX(price) FROM shop;

SELECT * FROM shop WHERE price=@min_price OR price=@max_price;