编辑代码

CREATE DATABASE test;
use test;
/*
CREATE TABLE TABLE1
(
STOCK  varchar(20),
SYMBOL char(6),
SHARETYPE  char(1),
TRADEDATE date,
PRICE  decimal(10,2)
);
INSERT INTO TABLE1(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE) VALUES ('平安银行','000001','A','2021-05-20', 69.97);
INSERT INTO TABLE1(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE) VALUES ('长安B','200625','B', '2021-05-20',7.11);
INSERT INTO TABLE1(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE) VALUES ('ST星源','000005','A','2021-05-20',1.82);
INSERT INTO TABLE1(STOCK,SHARETYPE)VALUES('比亚迪', 'A');
ALTER TABLE TABLE1 ADD (PROVINCE varchar(10));
UPDATE  TABLE1 SET  PRICE=70.2  WHERE STOCK='平安银行';
UPDATE TABLE1 SET PRICE=70.15,SYMBOL='000002' WHERE STOCK='平安银行';
DELETE FROM TABLE1  WHERE STOCK='平安银行';
DELETE FROM TABLE1;
*/
 CREATE TABLE TABLE2
(
STOCK  varchar(20),
SYMBOL char(6),
SHARETYPE  char(1),
PRICE  decimal(5,2),
PROVINCE varchar(100)
);
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,PRICE,PROVINCE) VALUES('ST星源','000005','A',1.82,'广东省');
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,PRICE,PROVINCE) VALUES('北京城乡','600861', 'A', 14.38, '北京市') ;
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,PRICE,PROVINCE) VALUES('三环集团','300408', 'A',37.41, '广东省') ;
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,PRICE,PROVINCE) VALUES('万科A','000002', 'A',26.77, '广东省') ;
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,PRICE,PROVINCE) VALUES('南玻B','200012', 'B',3.58, '广东省') ;
UPDATE TABLE2 SET PRICE=16.25 WHERE STOCK='平安银行';
DELETE FROM TABLE2 WHERE STOCK='B';
DELETE FROM TABLE2 WHERE STOCK='平安银行';
INSERT INTO TABLE2 (STOCK,SYMBOL,SHARETYPE,PRICE,PROVINCE)VALUES('平安银行',000001, 'A',16.25, '广东省');