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),
    TRADEDATE DATE,
    PRICE DECIMAL(10,2),
    PROVINCE VARCHAR(50)
);
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');

select * from TABLE2;
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');
*/
CREATE TABLE TABLE3 (
    Bankcd CHAR(6),         
    Shortbnm VARCHAR(50),    
    Stkcd CHAR(6),           
    Typrep CHAR(1),          
    Cash DECIMAL(20,2) 
);
INSERT INTO TABLE3 (Bankcd, Shortbnm, Stkcd, Typrep, Cash)
VALUES ('000021', '北京银行', '601169', 'B', 184491000000);

INSERT INTO TABLE3 (Bankcd, Shortbnm, Stkcd, Typrep, Cash)
VALUES ('000077', '杭州银行', '600927', 'D', 68901675000);
UPDATE TABLE3
SET Stkcd = '600926'
WHERE Bankcd ='000077' AND Shortbnm ='杭州银行';
DELETE FROM TABLE3 WHERE Typrep = 'D';

INSERT INTO TABLE3 (Bankcd, Shortbnm, Stkcd, Typrep, Cash)
VALUES ('000014', '招商银行', '600036', 'B', 599416000000);
select * from TABLE3;