运行Mysql代码，但外键值未显示在phpmyadmin

Question

我的代码在phpmyadmin中运行，但是外键值没有显示在表中，当我更新它时，消息显示＆＃34; 0行受影响＆＃34;

我的表架构是：

CREATE TABLE fee_report (
fr_id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
school_id INT NOT NULL,
branch_id INT NOT NULL,
student_id INT NOT NULL,
ledger VARCHAR(55),
bill_no VARCHAR(255) NOT NULL,
fdate date NOT NULL,
receipt_no VARCHAR(255) NOT NULL,
dr float NOT NULL,
cr float NOT NULL,
balance float NOT NULL,
particulars VARCHAR(155),
updated TIMESTAMP NOT NULL,
CONSTRAINT fk_frschool FOREIGN KEY (school_id)
REFERENCES school(school_id),
CONSTRAINT fk_frbranch FOREIGN KEY (branch_id)
REFERENCES branch(branch_id),
CONSTRAINT fk_frstudent FOREIGN KEY (student_id)
REFERENCES student(student_id)
) ENGINE = INNODB;


INSERT INTO fee_report(school_id,branch_id,student_id,ledger,bill_no,fdate,dr,balance,particulars,feetype) 
VALUES(1,1,13,'TGS007','SESNOV1020',CURDATE(),'2850','-14450','11','Tuition Fee,Transport Fee,Smart Class Fee,SA-1 Exam Fee')

为什么外键school_id，branch_id和student_id没有显示在表格中 当我删除外键约束时，值在表

中可见