Cloaked9000 / FrSQL

An experimental - and very limited- SQL implementation

FrSQL

An experimental - and very limited - SQL implementation for fun and experimentation, comprised of a lexer, parser, and virtual machine.

Supported Features:

• UPDATE, DELETE, SELECT, INSERT
• CREATE/DELETE TABLE
• SUBQUERIES
• LIMIT
• (NOT) IN
• SHOW
• DESC

Supported Example Queries:

CREATE TABLE admin(id INT, user_id INT);
INSERT INTO admin (id, user_id) VALUES(1, 1), (1, 2);


CREATE TABLE user(id INT, name STRING, age INT);
INSERT INTO user VALUES(1, "James", 16);
INSERT INTO user (id, name, age) VALUES (4, "Adam", 17), (3, "Terry", 20), (2, "Jessica", 21);

SELECT * FROM user WHERE id IN (SELECT user_id FROM admin);
SELECT name, age * 2 FROM user WHERE age % 2 = 0;

UPDATE user SET name = "Big Terry", age = age + 1 WHERE id = 3;
DELETE FROM user WHERE id = 4;
SELECT * FROM user;

Screenshots: