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',69.87);
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),
    TRADEDATE date,
    PRICE decimal(10,2)
);
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE)VALUES('平安银行','200012','B',3.58,'广东省');
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE)VALUES('长安B','200625','B',1.82,'广东省');
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE)VALUES('ST星源','000005','A',1.82,'广东省');
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE)VALUES('北京城乡','600861','A',14.38,'北京市');
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE)VALUES('三环集团','300408','A',37.41,'广东省');
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE)VALUES('万科A','000002','A',26.77,'广东省');
INSERT INTO TABLE2(STOCK,SYMBOL,SHARETYPE,TRADEDATE,PRICE)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(STOCK,SYMBOL,SHARETYPE,PRICE,PROVINCE)VALUES('平安银行','000001',16.25,'广东省');
*/