# 语法五：references
# 问题
Let's say I want to create two tables person and hobby and I want the hobby table id to reference the id of person?
person table
- id
- name
hobby
- id
- person_id
- hobby_name
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# 实现
CREATE TABLE hobby (
id INT NOT NULL AUTO_INCREMENT,
person_id INT NOT NULL,
hobby_name VARCHAR(255),
PRIMARY KEY(id),
FOREIGN KEY(person_id) REFERENCES person(id)
)
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