Create Table Customer (
Customer_ID int PRIMARY Key Not NUll,
Customer_Name VARCHAR(50) Not NULl,
Address VARCHAR(40) Not NULL

);


Create Table Productss (
Product_ID Int PRIMARY KEY Not Null,
Product_Name VARCHAR(50) Not NULL,
Price int Check(Price > 0) NOT NUll

);


CREATE TABLE Orderss (
order_id INT primary key not null,
quantity  INT not null,
order_date DATE not null,
customer_id INT,
product_id INT,
foreign key (customer_id) references customer(customer_id),
foreign key (product_id) references products(product_id)
);

--Write the appropriate SQL queries to insert all the provided records in their corresponding tables.
INSERT INTO Productss VALUES 
(1, 'Cookies', 10),
(2, 'Candy', 5.2)

INSERT INTO Customer VALUES 
(1, 'Ahmed', 'Tunisia'),
(2, 'Coulibaly', 'Senegal'),
(3, 'Hasan', 'Egypt')


INSERT INTO Orderss VALUES
(1, 3, ' 2023-01-22', 2, 1),
(2, 10, '2023-04-14', 2, 1)



--Update the quantity of the second order, the new value should be 6.
UPDATE Orderss set
quantity = 6 WHERE Order_id = 2 ;


--Delete the third customer from the customers table.
DELETE FROM Customer
WHERE Customer_Name = 'Hasan';

--Delete the orders table content then drop the table.
drop table orderss
by

SQLite online editor

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About SQLite

SQLite is an in-process C library that implements small, fast, serverless, zero-configuration, transactional SQL database engine.

Key Features:

  • Very small and light weight
  • Serverless
  • Free to use
  • Self contained as no other dependencies required.
  • zero config

Syntax help

Useful Commands

1. CREATE

CREATE TABLE table_name (
                column1 datatype,
                column2 datatype,
                ....);

Example

CREATE TABLE EMPLOYEE (
  empId INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  dept TEXT NOT NULL
);

2. ALTER

ALTER TABLE Table_name ADD column_name datatype;

Example

INSERT INTO EMPLOYEE VALUES (0001, 'Dave', 'Sales');

3. DROP

DROP TABLE table_name;

4. INSERT

INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);

Note: Column names are optional.

Example

INSERT INTO EMPLOYEE VALUES (0001, 'Ava', 'Sales');

5. SELECT

SELECT column1, column2, ...
FROM table_name
[where condition];

Example

SELECT * FROM EMPLOYEE where dept ='sales';

6. UPDATE

UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;

Example

UPDATE EMPLOYEE SET dept = 'Sales' WHERE empId='0001';

7. DELETE

DELETE FROM table_name where condition;

Example

DELETE from EMPLOYEE where empId='0001';

8. CREATE INDEX

  CREATE [UNIQUE] INDEX index_name on table_name(column_name);

9. DROP INDEX

DROP INDEX index_name ON table_name;

10. Create a View

CREATE VIEW View_name AS 
Query;

11. How to call view

SELECT * FROM View_name;

12. Altering a View

ALTER View View_name AS 
Query;

13. Deleting a View

DROP VIEW View_name;

14. INNER JOIN

SELECT * FROM TABLE1 INNER JOIN TABLE2 where condition;

15. LEFT JOIN

SELECT * FROM TABLE1 LEFT JOIN TABLE2 ON condition;

16. RIGHT JOIN

SELECT * FROM TABLE1 RIGHT JOIN TABLE2 ON condition;

17. CROSS JOIN

SELECT select_list from TABLE1 CROSS JOIN TABLE2;