https://github.com/moindalvs/mysql_ddl_dml_tcl_and_more

MYSQL_Basics
https://github.com/moindalvs/mysql_ddl_dml_tcl_and_more

mssql mssql-database mysql mysql-database mysql-server sql sql-query sql-server sqlite-database

Last synced: 24 days ago
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MYSQL_Basics

• Host: GitHub
• URL: https://github.com/moindalvs/mysql_ddl_dml_tcl_and_more
• Owner: MoinDalvs
• Created: 2022-09-11T09:17:18.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-09-11T09:23:07.000Z (over 2 years ago)
• Last Synced: 2024-11-17T05:28:01.744Z (3 months ago)
• Topics: mssql, mssql-database, mysql, mysql-database, mysql-server, sql, sql-query, sql-server, sqlite-database
• Homepage:
• Size: 2.27 MB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# MySQL_DDL_DML_TCL_and_more

MYSQL_Basics

USE sql_store;

INSERT INTO customers ( 

first_name,

 last_name, 

 birth_date, 

 phone, address, 

 city, 

 state, 

 points)

 VALUES ( 'Maruf', 'Bhombal', '1997-04-27', '976-976-5676', '1010 shreeji plaza', 'Navi Mumbai', 'TX', '3699');

USE sql_store;

SELECT o.order_date, o.order_id, c.first_name, s.name AS shipper, os.name as status

FROM customers c

JOIN orders o

ON c.customer_id = o.customer_id

LEFT JOIN shippers s

ON o.shipper_id = s.shipper_id

LEFT JOIN order_statuses os

ON os.order_status_id = o.status;

USE sql_hr;

SELECT 

e.employee_id,

e.first_name,

em.first_name AS manager

FROM employees e

LEFT JOIN employees em

ON e.reports_to = em.employee_id;

USE sql_store;

SELECT o.order_date, c.first_name, sh.name AS shipper

FROM orders o

JOIN customers c

USING (customer_id)

LEFT JOIN shippers sh

USING (shipper_id);

USE sql_store;

SELECT *

FROM order_items

JOIN order_item_notes

USING (order_id, product_id);

USE sql_invoicing;

SELECT p.date, c.name AS client, p.amount, pm.name AS payment_method

FROM payments p

JOIN clients c USING (client_id)

JOIN payment_methods pm

ON pm.payment_method_id = p.payment_method;

USE sql_store;

SELECT *

FROM orders o

NATURAL JOIN customers c;

USE sql_store;

SELECT p.name AS product, sh.name AS shipper

FROM products p

CROSS JOIN shippers sh

ORDER BY p.name;

USE sql_store;

SELECT order_id, order_date, 'ACTIVE' AS status

FROM orders

WHERE order_date >= '2019-01-01'

UNION

SELECT order_id, order_date, 'ARCHIVED' AS status

FROM orders

WHERE order_date < '2019-01-01';

USE sql_store;

SELECT customer_id, first_name, points, 'Bronze' AS 'Rank'

FROM customers

WHERE points < '2000'

UNION

SELECT customer_id, first_name, points, 'Silver' AS 'Rank'

FROM customers

WHERE points BETWEEN '2000' AND '3000'

UNION

SELECT customer_id, first_name, points, 'Gold' AS 'Rank'

FROM customers

WHERE points > '3000'

ORDER BY first_name;

USE sql_store;

INSERT INTO products (name, quantity_in_stock, unit_price)

VALUES ('Toothpaste', '23', '3.90' ), 

('Cold drink', '18', '3.6'), 

('Shoes', '69', '4.20');

USE sql_store;

INSERT INTO orders (customer_id, order_date, status)

VALUES (1, '2019-01-02', 2);

INSERT INTO order_items

VALUES (LAST_INSERT_ID(), 3, 34, 1.63),

(LAST_INSERT_ID(), 4, 23, 2.73);

INSERT INTO orders_archive

SELECT * 

FROM orders

WHERE order_date < '2019-01-01';

USE sql_invoicing;

CREATE TABLE invoices_archive AS

SELECT i.invoice_id,

 i.invoice_date,

 c.name as 'client name',

 i.number,

 i.payment_date,

 i.invoice_total,

 i.payment_total,

 i.due_date

FROM invoices i

JOIN clients c

USING (client_id)

WHERE payment_date IS NOT NULL;

USE sql_invoicing;

UPDATE invoices

SET payment_total = 10, payment_date = '2019-05-01'

WHERE invoice_id = 1;

USE sql_invoicing;

UPDATE invoices

SET payment_total = DEFAULT, payment_date = null

WHERE invoice_id = 1;

USE sql_invoicing;

UPDATE invoices

SET payment_total = invoice_total * 0.5, payment_date = due_date

WHERE client_id IN (3, 4);

USE sql_store;

UPDATE customers

SET points = points + 50

WHERE birth_date < '1990-01-01';

USE sql_invoicing;

UPDATE invoices

SET payment_total = 0.5 * invoicing_total,

payment_date =  due_date

WHERE client_id IN

(SELECT client_id

FROM clients

WHERE state IN ('CA', 'NY'));

USE sql_store;

UPDATE orders

SET comments = 'Gold Customer'

WHERE customer_id IN

(SELECT customer_id

FROM customers

WHERE points >= 3000);

USE sql_invoicing;

DELETE FROM invoices

WHERE client_id = (

SELECT *

FROM clients

WHERE name = 'Myworks'

);