mysql储存数组数据

CREATE TABLE example (
    id INT AUTO_INCREMENT PRIMARY KEY,
    data JSON
);

INSERT INTO example (data) VALUES ('["apple", "banana", "cherry"]');

CREATE TABLE example (
    id INT AUTO_INCREMENT PRIMARY KEY,
    data TEXT
);

INSERT INTO example (data) VALUES (serialize(array('apple', 'banana', 'cherry')));

CREATE TABLE example (
    id INT AUTO_INCREMENT PRIMARY KEY
);

CREATE TABLE example_items (
    id INT AUTO_INCREMENT PRIMARY KEY,
    example_id INT,
    item VARCHAR(255),
    FOREIGN KEY (example_id) REFERENCES example(id)
);

INSERT INTO example () VALUES ();
SET @example_id = LAST_INSERT_ID();
INSERT INTO example_items (example_id, item) VALUES (@example_id, 'apple'), (@example_id, 'banana'), (@example_id, 'cherry');

SELECT JSON_EXTRACT(data, '$[1]') AS fruit FROM example WHERE id = 1;

SELECT unserialize(data) AS fruits FROM example WHERE id = 1;

SELECT item FROM example_items WHERE example_id = 1;